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Fuel Lines & Breather Hoses
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 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Hose - 4.5 x 9.5mm
Sold per meter
High-quality 4.5x9.5mm hose designed for a variety of applications across Porsche 911 and 928 models, supplied per metre for precise installation and flexible routing.
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 1978-1989 3.3L Turbo (930)
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
This versatile hose can be used in multiple systems including vacuum lines, fuel system connections, and air hoses, making it an essential component for maintaining proper engine operation and system efficiency.
Manufactured to OEM specifications, this hose provides durability, flexibility, and resistance to heat and fluid exposure, making it ideal for maintenance, repair, or restoration of Porsche engine bay systems.
Key Features
• 4.5mm internal diameter, 9.5mm outer diameter
• Suitable for Porsche 911 and 928
• Multi-purpose hose for vacuum, fuel, and air systems
• Sold per metre for custom length applications
• Resistant to heat and engine bay conditions
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is used across multiple vehicle systems.
It helps to:
• Maintain vacuum pressure in engine systems
• Support fuel delivery between components
• Provide airflow within intake systems
• Ensure leak-free operation across connections
• Support overall engine performance and efficiency
Why Replace Hoses
Over time, hoses degrade due to heat, pressure, and exposure.
Common issues include:
• Cracking or splitting
• Fuel or vacuum leaks
• Hardening and reduced flexibility
• Reduced system efficiency
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918116750
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- 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 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
The overflow hose provides a vent path for fuel vapours and excess pressure from the fuel filler neck to the tank vent/evaporative system, preventing pressure buildup and aiding smooth refuelling without backflow or spills.
Fits:
Porsche 911 1978 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 24
The hose fits between the fuel filler neck and the fuel tank vent/overflow outlet, allowing controlled relief of fuel vapours and pressure during refuelling and normal operation. A compromised or deteriorated hose can lead to fuel vapour leaks, poor venting, fuel smell at the rear of the vehicle, or difficulty refuelling due to trapped pressure.
This OE Match hose offers a direct replacement solution for restoration, maintenance, or repair when the original hose shows signs of age or damage.
Function:
• Ensures proper venting of fuel fumes and pressure from the filler neck
• Maintains correct fuel system breather operation
• Prevents fuel vapour leaks and associated odours
• Durable, fuel-resistant construction for long service life
The fuel filler overflow/vent hose plays a small but important role in maintaining proper fuel system behaviour. A cracked, hardened, or leaking hose can cause fuel vapour smells, trapped pressure that makes refuelling difficult, and potential environmental or safety issues. Replacing it with an OE Match hose restores correct venting and refuelling behaviour while helping keep the fuel system sealed and odour free.
When to replace:
• Visible cracking, swelling, or brittleness of the hose
• Noticeable fuel vapour smell near filler area
• Difficulty filling the tank (pressure backflow)
• During restoration or fuel system servicing
• If original hose shows age-related deterioration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420115300
The product you are viewing cross references to these numbers
OEMatch Fuel Lines & Breather Hoses — Fit, Function, Confidence
OEMatch Fuel Lines & Breather Hoses for Porsche models are selected to support application-specific needs. Fuel lines and breather hoses route petrol, manage vapour and equalise tank pressure across supply, return and evaporation systems. Correct materials and secure connections reduce the risk of leaks, fuel odour and refuelling faults while helping preserve steady engine running and emissions control.
- Fuel supply and return lines with factory-style fittings
- Vapour and breather hoses for tank and canister circuits
- Flexible tank-to-engine connectors and quick-connect adaptors
Understanding OEMatch Fuel Lines & Breather Hoses
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original fuel lines & breather hoses.
OE (Original Equipment) refers to parts matching original specifications for the fuel lines & breather hoses and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM fuel lines & breather hoses engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Fuel lines deliver pressurised fuel to injectors or carburettors and breather hoses equalise tank pressure and manage vapour routing; both are integral to safe refuelling, combustion stability and emissions control. OEMatch focuses on Porsche applications across gaskets to suspension hardware and engine parts, cataloguing thousands of part numbers and OE cross-references while continuing to develop new lines to support vehicle upkeep.
- Helps prevent fuel leaks and odour by restoring secure sealing
- Supports correct fuel delivery and consistent engine running
- Improves refuelling behaviour and reduces risk of vapour lock
- Ageing and heat exposure causing cracking, hardening or swelling
- Exposure to ethanol or contaminated fuels leading to internal damage
- External abrasion, chafing or damage from incorrect routing
- Loose or corroded fittings that allow leaks and pressure loss
The Importance of Replacing with OEMatch Fuel Lines & Breather Hoses
Replacing aged or damaged hoses reduces fire and fume hazards, avoids drivability and refuelling faults and helps maintain emissions systems. For Porsche models, renewed lines and vents contribute to reliable starting, stable idle and accurate fuel pressure, supporting safe operation and predictable engine response.
- Selected for Porsche applications and supplied with relevant fittings where specified
- Made to original-spec dimensions and tolerances to match factory routing and clearances
- Constructed from modern, fuel-resistant materials designed for heat and ethanol exposure
Support & Advice
Fitting can appear straightforward but may require procedures such as correct torque settings and careful routing of hoses. If you lack the correct tools or model-specific knowledge, we recommend professional installation. Recheck fasteners and connections after initial running and observe for any diagnostic codes or fuel odours.
