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Heater hoses & pipes
By OE Match
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Contains:
1 x Clamp for heater Left 90121105122
1 x Clamp for heater Right 90121105222
2 x M6 Hex. Head Bolts 90037803001
2 x Locking nuts N0120064
Fits:
Porsche 911 1965-1968 2.0L / 912 SWB (F)
Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Porsche 911 1978-1983 3.0L / SC
Porsche 911 1984-1986 3.2L
Porsche 911 1975-1977 3.0L Turbo (930)
Porsche 911 1978-1989 3.3L Turbo (930)
Click 'Zoom in' for large parts diagram.
Diagram ref no 2 , 3 & 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
HEATERCLAMP911
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
An OE Match blower hose made from black outer material with an aluminium inner structure, designed to channel heated air within the engine bay heating system of Porsche 911 models.
Fits:
Porsche 911 1975 - 1983
Also used on Pre >>1973 911's in the heater system
Diagram ref no 13
This OE Match Blower Hose is a high-quality replacement component designed to replicate the original Porsche heater hose used in classic air-cooled 911 models. Installed in the engine bay, this hose connects the blower motor to the heat exchanger, enabling the transfer of warm air into the vehicle’s heating system.
This hose, approximately 60 mm in diameter and approximately 1 meter long, is designed for proper routing and fit within the limited space of the engine compartment. It plays a crucial role in maintaining proper cabin heating performance, especially in colder driving conditions.
This blower hose channels heated air from the engine-mounted blower to the heat exchangers, ensuring warm air is properly distributed through the vehicle’s heating system.
Function
• Transfers heated air from blower to heat exchanger
• Maintains consistent airflow within the heating system
• Withstands high engine bay temperatures
• Flexible design allows correct routing and installation
• Supports effective cabin heating performance
Over time, blower hoses can become brittle, cracked, or collapsed due to prolonged exposure to heat and age. This can lead to reduced airflow, poor heating performance, and potential heat loss within the system. Replacing a worn hose ensures efficient heat transfer, improves cabin comfort, and maintains proper operation of the vehicle’s heating system.
When to replace
• Visible cracks, splits, or deterioration
• Reduced or inconsistent cabin heating
• Hose becoming brittle or collapsing under heat
• During engine bay or heating system restoration
• Signs of air leaks or disconnected ducting
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91121152201
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Appox 1.1meter long 60mm diameter.
This blower hose is a replacement heater / blower air hose for Porsche 911 models from 1975 to 1983. Manufactured in a brown paper and aluminium style, it is designed to replace the original-style flexible ducting used within the heating and ventilation system.
Fits:
Porsche 911 1975 - 1983
* Also used on Pre >>1973 911's in the heater system
Diagram ref no 13
The blower hose carries air through the heater and ventilation system, helping direct airflow from the engine bay heater blower system through the correct ducting route. A good blower hose supports cabin heating, ventilation, and demisting performance by maintaining proper airflow without leaks or restrictions.
Functions
• Replaces the heater blower hose
• Carries warm air through the heating and ventilation system
• Helps support cabin heating and windscreen demisting
• Maintains correct airflow through the heater ducting
• Replaces split, crushed, torn, brittle, missing, or heat-damaged hoses
• Brown paper / aluminium style for classic Porsche appearance
• Suitable for heater system repair, refurbishment, or restoration.
Why Replace This Part?
Blower hoses are exposed to heat, age, vibration, moisture, and engine bay conditions. Over time, the hose can become brittle, split, collapse, fray, or detach from its mounting points. A damaged hose can reduce heater output, cause poor demisting, allow air leaks, or leave the heater system incomplete. Replacing the blower hose helps restore correct airflow and reliable heating system performance.
When to Replace This Part
• The blower hose is split, crushed, torn, brittle, or missing
• Cabin heating output is weak or inconsistent
• Windscreen demisting performance is poor
• Air leaks are present around the heater ducting
• The heater blower system is being serviced
• Engine bay heater hoses are being replaced
• The vehicle is undergoing Porsche 911 heating system restoration.
Where it fits on the car
This blower hose fits within the heater blower and ventilation ducting system on Porsche 911 models. It connects according to the factory heating system layout and supports airflow through the heater circuit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91121152201
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 914 (1970-1976)
Pipe Clamp B20x18 – Multi-Position Clamp
Sold each
High-quality
pipe clamp B20x18 designed for a wide range of securing applications across Porsche 911, 924S, 928, and
914 models.
This versatile clamp is used in multiple locations including
air conditioning pipes, wiring looms, power steering lines, clutch cables,
and heating system components, making it an essential part for maintaining
correct routing and system integrity throughout the vehicle.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 914 (1970-1976)
Manufactured to OEM specifications, this clamp ensures secure fitment, durability, and resistance to corrosion. Supplied individually, it allows flexible replacement for maintenance, repair, or restoration projects.
Key Features
• Pipe clamp size B20x18
• Suitable for Porsche 911, 924S, 928, and 914
• Part number 99951107602
• Multi-use: AC pipes, wiring looms, steering, clutch, heating
• Ensures secure mounting and routing
• Durable and corrosion-resistant construction
• OEM-style fit and performance
• Sold individually
Function and Purpose
This clamp is designed to secure various components across the vehicle.
It helps to:
• Hold pipes, hoses, and cables firmly in place
• Maintain correct routing and alignment
• Prevent vibration-related wear and damage
• Protect sensitive components such as wiring looms
• Support long-term system reliability
Why Replace Pipe Clamps
Clamps can degrade over time due to heat and environmental exposure.
Common issues include:
• Loss of clamping strength
• Corrosion or fatigue
• Movement of pipes or cables
• Increased risk of wear or failure
Replacing worn clamps ensures proper securing and protects system components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951107602
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
The OE Match Clamp for Heater Hose, 330 mm is a high-quality replacement fastening component designed to securely retain heater hoses within the vehicle's cooling and heating system. Manufactured to OE specifications for fit, strength and durability, this clamp provides the clamping force required to maintain a reliable, leak-free connection between heater hoses and associated cooling system components.
Fits:
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Diagram Ref No 12
Constructed from corrosion-resistant materials and engineered to withstand constant exposure to heat, coolant, vibration and pressure fluctuations, this hose clamp helps ensure the integrity of the cooling and heating circuits. Proper hose retention is essential for maintaining coolant flow, heating performance and overall engine cooling system reliability.
What This Product Does:
- Secures heater hoses to pipes, fittings and cooling system components.
- Maintains a leak-free coolant system connection.
- Provides consistent clamping force under varying temperatures.
- Prevents hose movement caused by vibration and pressure changes.
- Supports efficient coolant circulation through the heating system.
- Helps maintain correct cabin heating performance.
- Contributes to overall cooling system reliability and safety.
Symptoms Of Wear Or Failure:
- Coolant leaks around heater hose connections.
- Visible corrosion or rust on the clamp.
- Loose or slipping heater hoses.
- Coolant residue around hose fittings.
- Reduced heater performance due to coolant loss.
- Sweet coolant odour from the engine bay.
- Low coolant level warnings.
- Overheating concerns caused by coolant leakage.
- Visible clamp deformation or loss of tension.
Why Replacement Matters:
- Heater hose clamps are exposed to continual heat cycles, moisture, coolant chemicals and engine vibration. Over time, corrosion, metal fatigue or loss of clamping tension can reduce their ability to maintain a secure seal between hoses and cooling system components.
- A failing hose clamp can allow coolant to escape, leading to reduced heater efficiency, cooling system pressure loss and potential engine overheating. Even minor coolant leaks can worsen over time, increasing the risk of damage to cooling system components and resulting in costly repairs.
- Replacing a worn or damaged heater hose clamp restores proper hose retention, prevents coolant leaks and helps maintain the efficiency and reliability of the cooling and heating systems. An OE Match replacement provides factory-style fitment, dependable clamping performance and long-term durability, ensuring reliable operation of your Porsche cooling system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951234901
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 1965-86
Porsche 911 Turbo 3.0L / 3.3L 1975-86
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90121105
The product you are viewing cross references to these numbers
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Clamp power steering hose and AC hose by Design911 for selected Porsche 911 and 928 models. This part helps keep hose runs correctly supported and positioned within the engine bay, matching original mounting points and clearances where applicable.
What This Product Does
This clamp secures power steering and air conditioning hoses to help maintain correct routing, limit unwanted movement and reduce chafing against nearby components. For Porsche applications, it is used as a direct-fit replacement engineered to match original dimensions and tolerances.
Functions
- Secures power steering hose runs
- Supports AC hose routing
- Helps reduce hose movement
- Helps limit vibration-related wear
- Maintains correct positioning in the engine bay
Why Replacement Matters
- Old clamps can lose tension through age, heat and general exposure
- Corrosion or fatigue may affect how firmly the hose is retained
- Poor hose support can allow movement, rubbing or misalignment
- Replacing worn hardware helps support correct fit and function
Fits
- Porsche 911 and 912 1965–1989
- Porsche 911 3.2L G50 1987–1989
- Porsche 911 3.3L Turbo 930 1978–1989
- Porsche 928 1978–1995
- Porsche 928S4 5.0L 1987–1992
- Porsche 928GT 5.0L 1989–1991
- Porsche 928GTS 5.4L 1992–1995
Check fitment for your specific Porsche model, year and engine before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N020601A
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Rubber sealing ring / gasket used in the HVAC/heater/ventilation system of classic 911 / 912 cars. Its sealing points where heater/vent hoses pass through body or bulkhead. Ideal when refurbishing HVAC ducts, replacing heater hoses, restoring classic 911/912 ventilation and heat systems.
Sold each. 2 required per vehicle.
Fits:
Porsche 911 1965 - 1989 all models
Diagram ref no 18
Because over decades the original sealing rings often become brittle, hard, compressed or cracked (due to heat cycles, age, vibration, exposure to cabin air, moisture and dust), they lose their ability to seal properly.
This can lead to:
• Unwanted air leaks or drafts into cabin
• Water or dust ingress into the interior or into heater ducts
• Poor heating or ventilation performance
• Increased cabin noise, wind-noise or fumes entering cabin (especially on vehicles with engine-bay to cabin vents).
Replacing with a correct-spec sealing ring ensures a tight, flexible seal that restores proper HVAC function, occupant comfort, and helps preserve the integrity of the car’s interior and ventilation system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90157291301
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928S2 4.7L 1984-86
Vacuum Hose Distribution Y-Piece – 4mm Vacuum Line
Splitter
Sold each - used in various locations
High-quality vacuum hose distribution Y-piece designed for a wide range of Porsche models including 911, 964, 924S, 944, 968, and 928.
This Y-splitter allows a single vacuum source to be divided into two outlets, enabling efficient routing and connection of vacuum lines within the engine bay or HVAC system. It is specifically designed for vacuum hoses with a 4mm outer diameter, ensuring a secure and precise fit.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928S2 4.7L 1984-86
Diagram ref no 4
Manufactured to OEM standards, this connector is ideal for maintaining or restoring vacuum system integrity across multiple Porsche applications.
Key Features
• Universal-style vacuum Y-piece connector
• Suitable for Porsche 911, 964, 924S, 944, 968, and 928
• Designed for 4mm outer diameter vacuum hoses
• Enables splitting of vacuum lines
• OEM-style fit and function
• Durable construction for long-term reliability
Function and Purpose
This Y-piece is a critical connector within the vacuum system.
It helps to:
• Split a single vacuum line into two outputs
• Maintain proper vacuum routing
• Ensure consistent vacuum pressure distribution
• Support engine and HVAC system operation
Why Replace Your Vacuum Connector
Over time, vacuum connectors can degrade due to heat and age.
Common issues include:
• Cracked or brittle plastic
• Vacuum leaks
• Poor hose connections
• Engine or HVAC system malfunctions
Replacing the Y-piece restores proper vacuum system function.
• Loose or unsecured temperature sensor
• Incorrect temperature readings
• HVAC system inconsistencies
• Broken or missing connector clips
Replacing the lock piece restores proper sensor stability and function.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92857372702
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Heater Box Drain Hose
Maintain the efficiency and longevity of your classic
Porsche heating system with this OE Match Heater Box Drain Hose. Manufactured to closely match the original factory
specification, this ensures moisture and condensation are safely drained away from the heater box,
helping to protect surrounding components from corrosion and deterioration.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Diagram ref no 19
Ideal for routine maintenance or full restoration projects, this OE Match drain hose provides the correct fit and reliable performance expected from an original-style replacement.
What Does the Heater Box Drain Hose Do?
The heater box drain hose plays an important role in the operation of the air-cooled Porsche heating system.
Its functions include:
- Draining condensation and moisture from the heater box.
- Helping prevent water from collecting inside the heating system.
- Protecting the heater box and surrounding bodywork from corrosion.
- Reducing the risk of trapped moisture causing rust or deterioration.
- Maintaining efficient operation of the heating and ventilation system.
Although often overlooked, this simple hose helps preserve both the heating system and the surrounding chassis.
Why Does the Heater Box Drain Hose Fail?
The original drain hose is continually exposed to heat, moisture, road debris and age, causing the rubber material to deteriorate over time.
Common causes of failure include:
- Rubber becoming brittle and cracking with age.
- Splits caused by repeated heat cycles.
- Hardening due to engine bay temperatures.
- Blockages from dirt, leaves or road debris.
- Perishing caused by prolonged exposure to moisture and contaminants.
- Damage during engine or heater system maintenance.
A damaged or blocked drain hose can allow moisture to remain inside the heater box, increasing the risk of corrosion and reducing heating system efficiency.
When Should It Be Replaced?
Replacement is recommended when:
- The hose is cracked, split or hardened.
- Signs of water retention or corrosion are found around the heater box.
- The heating system is being restored or serviced.
- The engine is removed, providing easy access.
- Restoring a classic Porsche to factory specification.
- Carrying out preventative maintenance on an ageing vehicle.
Replacing the drain hose is an inexpensive way to help protect the heating system and surrounding bodywork from long-term moisture damage.
OE Match Features
- OE Match quality replacement.
- Manufactured to replicate original factory dimensions.
- Durable rubber construction.
- Correct fit and routing for factory heater box assemblies.
- Helps maintain proper heater box drainage.
- Suitable for restoration, repair and preventative maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90157132632
The product you are viewing cross references to these numbers
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
Engine to Left Heat Exchanger Hose 130mm x 60mm
Maintain efficient cabin heating and proper airflow within
your air-cooled Porsche with this OE Match Engine to Left Hand Heat Exchanger Hose.
Measuring 130mm x 60mm, this hose is manufactured to the original factory specification.
Fits:
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
Diagram ref no. 19
Designed for the Porsche 911 turbo (930) and Porsche 964 turbo, this hose connects the engine cooling fan housing to the left-hand heat exchanger, delivering the airflow required for the vehicle's heating system. Manufactured from durable, heat-resistant materials, it provides the correct fit and flexibility needed to withstand the demanding temperatures of the engine bay.
Whether you're replacing a deteriorated original hose or completing a full engine restoration, this OE Match component restores factory-style performance and appearance.
What Does the Engine to Heat Exchanger Hose Do?
The engine to heat exchanger hose is an essential part of the air-cooled Porsche heating system.
Its primary functions include:
- Directing cooling fan air from the engine to the left-hand heat exchanger.
- Providing the airflow required to generate warm air for the cabin heating system.
- Maintaining efficient airflow through the heat exchanger.
- Helping ensure effective windscreen demisting and cabin heating.
- Completing the sealed airflow path between the engine and heating components.
Without an airtight hose, airflow is reduced, resulting in diminished heating performance and reduced system efficiency.
Why Does the Heat Exchanger Hose Fail?
Located in the engine compartment, the hose is constantly exposed to high temperatures, engine vibration and environmental contaminants.
Common causes of deterioration include:
- Heat-related hardening and cracking.
- Rubber or reinforced material becoming brittle with age.
- Splits caused by engine movement and vibration.
- Damage during engine maintenance.
- Oil contamination reducing material strength.
- General wear after years of service.
A damaged hose allows cooling air to escape before reaching the heat exchanger, reducing heating efficiency and affecting overall airflow management.
When Should It Be Replaced?
Replacement is recommended when:
- The hose is cracked, split or torn.
- Heating performance has noticeably decreased.
- Air leaks are present within the heating system.
- The hose has become brittle or collapsed.
- Carrying out an engine or heating system restoration.
- Replacing heat exchangers or other heating system components.
- Performing preventative maintenance on older vehicles.
Replacing ageing heating hoses helps restore proper airflow, improve cabin heating performance and maintain the efficiency of the air-cooled heating system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93021119601
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
This is a high-quality replacement hot-air hose connecting the engine fan duct to the heat-exchanger in classic Porsche models. With an internal diameter of 60 mm and a length of 380 mm, this hose replicates the original specification, including the aluminium-lined construction and brown-paper exterior that Porsche used.
Fits:
Porsche 912
Porsche 911 1965-73
Engine to Heat Exchanger on the Left or Right
Fits:
Porsche 930 Turbo 1975-89
Porsche 911SC
Porsche 911 3.2L
Engine to Heat Exchanger on the right
Diagram ref no. 20
• Position on Vehicle: Engine bay, connecting the engine fan duct/air-intake housing to the heat-exchanger (or heater box) via the hose (typically on the right side).
• Cross-Reference / Alternative Numbers: 901 211 194 01 (current) supersedes and replaces 901 211 194 00.
• Material & Construction: Crafted from heat-resistant aluminium-lined hose, clad externally with the original brown-paper finish and sized to match the factory shape (60mm inner diameter, ~380mm length). Built for high-temperature engine-bay environment and correct airflow performance.
• Applications: Ideal when the original hose is cracked, delaminated, deformed, missing, or when restoring correct heating/airflow behaviour in the engine bay or passenger compartment on classic air-cooled Porsche cars.
This hot-air hose plays a vital role in engine and cabin heat management: if it's cracked, collapsed, or detached, you may experience reduced heater output, engine-bay overheating, erratic air-flow, or loss of original ducting performance. Installing a correctly specified replacement restores the original system’s performance and helps maintain correct engine and cabin temperature control.
When and why to replace:
• Visible cracking, splitting, or sagging in the old hose.
• Hose has been removed, reused too often or replaced with incorrect diameter/length.
• Heater output is weak or airflow to engine/compartment is abnormal.
• Restoring a classic 911/930 and you require original spec parts for authenticity and functionality.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90121119401
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 914 (1970-1976)
This OE Match engine to heat exchanger hose is a replacement left-side heater air hose for Porsche 911 and 914 models. Measuring 458 mm x 60 mm, it is designed to match the original-style fitment and function, helping restore correct airflow between the engine and heat exchanger system.
Fits:
Porsche 911/911S/ Carrera 3.0 / 911SC 1974 - 1983
Porsche 914-6 1970 - 1976
This product supersedes Porsche's old part numbers: 90121119500
Diagram ref no. 10
The engine to heat exchanger hose carries warm air through the heating system, connecting the engine-side heater ducting to the heat exchanger area. A correctly fitted hose helps maintain proper cabin heating, demisting performance, and air distribution through the classic Porsche heating system.
Functions
• Replaces the left-side engine to heat exchanger hose
• Connects the engine heater ducting to the heat exchanger system
• Supports warm air transfer through the heating circuit
• Helps maintain cabin heating and windscreen demisting performance
• Replaces split, crushed, brittle, missing, or heat-damaged original hoses
• Supports correct heater system operation and airflow
• OE Match replacement for classic Porsche heater system restoration.
Why Replace This Part?
Heater air hoses are exposed to heat, vibration, age, moisture, and engine bay conditions. Over time, the hose can split, crush, collapse, harden, fray, or become detached. A damaged hose can reduce heating performance, cause poor demisting, allow air leaks, or leave the heating system incomplete. Replacing the hose helps restore correct airflow and reliable heater operation.
When to Replace This Part
• The hose is split, crushed, brittle, torn, or missing
• Cabin heating output is weak or uneven
• Windscreen demisting performance is poor
• Air leaks are present around the heater hose connections
• The heat exchanger or heater ducting is being serviced
• Engine bay heater hoses are being replaced during restoration
• The vehicle is undergoing Porsche 911 or 914 heating system refurbishment.
Where it fits on the car
This hose fits on the left side of the engine to heat exchanger heating system on Porsche 911 and 914 models. It connects the engine-side heater ducting to the heat exchanger area according to the factory heater layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90121119501
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
The OE MATCH Gasket for Heater Flap is a high-quality replacement sealing gasket designed for the heater flap assembly within the vehicle's heating and ventilation system. This gasket creates an effective seal between the heater flap and its housing, ensuring that warm air is directed correctly through the heating ducts and into the cabin.
Sold Each.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Diagram Ref No 7
Manufactured to OE specifications, the gasket helps prevent unwanted air leakage, improves heater efficiency, and contributes to proper climate control performance. Made from durable materials resistant to heat, age, and environmental exposure, it is an essential component during heater flap refurbishment or restoration work, particularly on classic Porsche models.
What This Product Does:
- Provides a seal between the heater flap and housing assembly
- Prevents unwanted air leakage within the heating system
- Ensures efficient airflow through the heater ducts
- Helps maintain consistent cabin heating performance
- Supports proper operation of the vehicle's ventilation system
- Reduces heat loss within the heater control system
Symptoms Of Wear Or Failure:
- Reduced cabin heating performance
- Air leaks from the heater flap assembly
- Difficulty maintaining cabin temperature
- Poor airflow direction through heater vents
- Increased drafts entering the cabin
- Rattling or vibration from loose sealing materials
- Visible deterioration, cracking, or missing gasket material
- Reduced efficiency of the heating and ventilation system
Why Replacement Matters:
- Restores an effective air-tight seal within the heater system
- Improves heating efficiency and airflow control
- Reduces unwanted air leaks and heat loss
- Enhances overall cabin comfort
- Supports proper operation of the heater flap mechanism
- Helps maintain original HVAC system performance
- Prevents drafts and inconsistent heating
- Provides a professional finish during restoration or maintenance work
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91121129700
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
The OE MATCH Heater Flap Hose is a high-quality silicone heating system hose designed to connect the heat control box (heater flap assembly) to the heat exchanger. Measuring Ø60 x 330 mm, this flexible hose forms a vital part of the vehicle’s cabin heating system, carrying heated air from the heat exchangers to the heater control components and ultimately into the passenger compartment.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Manufactured from durable, heat-resistant silicone, the hose is designed to withstand the high temperatures generated by the exhaust-heated air system while maintaining flexibility and structural integrity. It is an ideal replacement for ageing, cracked, or deteriorated original hoses commonly found on classic Porsche models.
What This Product Does:
- Transfers heated air from the heat exchanger to the heater control box
- Supports efficient cabin heating system operation
- Provides a sealed airflow path within the heating system
- Helps maintain consistent cabin temperatures
- Reduces heat loss within the heater ducting system
- Withstands high temperatures and engine bay conditions
Symptoms Of Wear Or Failure:
- Weak or reduced cabin heating output
- Loss of heated air before it reaches the cabin
- Cracked, split, or collapsed hose sections
- Air leaks around the heater duct connections
- Uneven or inconsistent cabin temperatures
- Visible deterioration from age, heat, or oil contamination
- Increased noise from escaping airflow
- Reduced overall efficiency of the heating system
Why Replacement Matters:
- Restores efficient heated air delivery to the cabin
- Prevents heat loss through damaged or leaking ducting
- Improves cabin comfort and temperature control
- Maintains proper operation of the heater flap system
- Reduces unwanted air leaks and noise
- Provides improved durability compared to ageing original hoses
- Supports restoration and maintenance of classic
- Porsche heating systems
- Ensures reliable long-term performance in high-temperature environments
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93021162201
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
This is a bespoke restoration product, you can not buy this from Porsche !
Fits:
Porsche 911/912 1965-68 SWB cars
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150340000
The product you are viewing cross references to these numbers
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oil supply for converter sportomatic 911 T/E UPTO 1971 104-35
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blower engine 911 SC 1978-83 108-10
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exhaust system 911 SC 1978-83 202-00
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exhaust system 911 TURBO 930.60/66 1978-83 202-10
-
heating air supply 911 1978-83 202-20
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ventilation heating system - 1 - 911 1978-83 813-00
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heating air supply for 911 T/E/S 1970 ONWARDS and 911 T-V, CARRERA 2.7, 911 T-K 1972 ONWARDS 202-00
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exhaust system for 911 T/E/S 1972 ONWARDS and 911 T-V, CARRERA 2.7, 911 T-K 1970-73 202-05
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additional blower 911 CARRERA 930.20/25/26 1987-89 108-10
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exhaust system 911 TURBO 930.66/68 1987-89 202-10
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heating air supply 911 1987-89 202-20
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L-JETRONIC II 911 CARRERA 930.20/21/26 1984-86 107-05
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Exhaust system 911 TURBO 1984-86 202-10
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heating air supply 911 1984-86 202-20
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ventilation heating system - 2 - 911 1987-89 813-01
-
cooling air duct Left-Hand Drive Cars 911 1987-89 813-10
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condenser lines accessories and others REAR 911 1987-89 813-55
-
headlight levelling system 911 M605 1987-89 905-02
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ventilation heating system - 1 - 911 1984-86 813-00
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ventilation heating system - 2 - 911 1984-86 813-01
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additional blower 911 1984-86 813-02
-
Ventilation and heating 911 1970-73 813-00
-
cooling air duct left-hand drive 911 1984-86 813-10
-
Air conditioner electrical components accessories not for (USA) 911 1970-73 813-70
-
Additional blower 911 1975 ONWARDS 108-10
-
Exhaust system K-JETRONIC 911.83 Cars 1974 ONWARDS 202-00
-
Exhaust system K-JETRONIC 1975 ONWARDS 202-10
-
Heating air supply 911 1974-77 202-30
-
Ventilation heating system - 1 - 911 UPTO 1976 813-00
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ventilation heating system - 2 - 911 1977 ONWARDS 813-05
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oil supply for converter sportomatic for 911 /L/S/TU UPTO 1968 and 911 T/E 1969 ONWARDS 104-20
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air cooling, air duct and engine cover for (S)(D) 912 1965-69 105-10
-
heating air supply 911 1965-69 202-00
-
exhaust system 911 1965-69 202-10
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ventilation heatin 911 1969 onwards 813-15
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air conditioner, electrical components, accessories 911 E/S/T 1969 onwards 813-95
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exhaust system 911 TURBO 1975-77 202-00
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exhaust system 911 TURBO 1975-77 (J) (USA) 202-10
-
turbocharger and wastegate 911 TURBO 1975-77 202-20
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heating air supply 911 TURBO 1975-77 202-30
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ventilation heating system - 1 - 911 TURBO upto 1976 813-00
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ventilation heating system - 2 - 911 TURBO 1977 onwards 813-05
OEMatch Heater hoses & pipes — Durability, Sealing, Performance
OEMatch supplies many parts for Porsche heating and cooling systems, including heater hoses and coolant pipes selected for material suitability and model coverage for Porsche vehicles.
Understanding OEMatch Heater hoses & pipes
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original heater hoses & pipes.
OE (Original Equipment) refers to parts matching original specifications for the heater hoses & pipes and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM heater hoses & pipes engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Heater hoses and pipes carry hot coolant from the engine to the heater core and return cooled fluid to the cooling circuit. They maintain coolant flow, support cabin heating, and help prevent air ingress and leaks that can affect engine temperature control.
Benefits Include
- Restores coolant circulation to support cabin heating and engine temperature control
- Reduces the risk of coolant leaks that can lead to overheating
- Materials selected for heat and pressure resistance suitable to Porsche applications
- Replacements that align with original mounting points and connection types
Why Heater hoses & pipes Wear and Fail
- Age-related rubber degradation causing cracking, swelling or hardening
- Corrosion or pinhole defects in metal pipes
- Coolant contamination or chemical breakdown leading to internal deterioration
- Loose, damaged or corroded clamps and fittings allowing leaks
The Importance of Replacing with OEMatch Heater hoses & pipes
Replacing worn heater hoses and pipes restores reliable coolant flow and cabin heating while lowering the chance of coolant loss and engine overheating. Regular inspection and timely replacement helps maintain system pressure integrity and avoids secondary damage to the heater core, water pump or head gasket. Choose components that match your Porsche model and the correct connection types to ensure straightforward installation and ongoing system reliability.
Advantages
- Selected materials for resistance to heat, pressure and corrosion
- Designed to match original dimensions and hose routing where applicable
- Suitable for maintenance, restoration and preventative servicing
Support & Advice
These items can appear straightforward to fit but may require specific procedures such as correct routing, adjustment and securing of hose / pipe ends. If you lack the correct tools or are unsure about hidden fastenings or sensors, seek professional installation.
