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Water / Coolant Radiators
By OE Match
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
This OE Match Water Radiator Set includes both left and right water radiators - designed as direct-fit replacements for the original factory cooling cores on Porsche 996 (911) & 986 Boxster models. Together they form the central cooling system components responsible for controlling engine temperature and preventing overheating.
SET OF 2
Fits:
Porsche 996 C2 / C4 / GT3 1997 - 2005
Porsche 986 Boxster 1997 - 2004
The cooling system of the Porsche 996 and 986 is based on two radiators (left and right) that effectively remove heat from the engine coolant under all operating conditions, from everyday driving to dynamic use on the road.
Each radiator is engineered to match original Porsche specifications for:
• Core dimensions and fin density
• Mounting points and hose connections
• Coolant flow capacity
• Heat transfer performance
This OE Match radiator set delivers balanced cooling and thermal stability by replacing both cores at once, ensuring equal efficiency on each side of the system. Manufactured from high-quality materials with durable aluminium cores and corrosion-resistant tanks, these radiators offer long service life and effective heat rejection with reliable fitment.
Direct replacement for the original Porsche components, this set installs using the existing mounting brackets, hoses, and hardware, making it ideal for cooling system overhauls, radiator failure replacement, or preventative maintenance on higher-mile vehicles.
A failing radiator can lead to engine overheating, coolant loss, reduced performance, and even engine damage if left unaddressed. Symptoms such as rising temperature gauge readings, coolant leaks, or steam from the engine bay indicate a compromised cooling core. Replacing both radiators as a matched set ensures consistent cooling efficiency and balanced performance across the entire system.
Replace this radiator set if you notice:
• Persistent engine overheating
• Leaks or corrosion on radiator cores
• Bent, dented, or clogged cooling fins
• Reduced heater performance
• After front-end collision or cooling system service
• During routine coolant system overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT99606.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
This package includes two radiator cooling fans - one for the left and one for the right side. Upgrading an aging cooling system by replacing both fans at once for consistent performance and longevity.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 996 C2, C4, GT3 1998 - 2005
Diagram ref no 2.
The purpose of this radiator cooling fan is to draw air through the radiator and air conditioning condenser when the vehicle's speed is low - for example, when idling or in traffic - helping maintain the proper coolant and cooling system temperature. This keeps the engine cool and the air conditioning system operating efficiently.
Key benefits of paired replacement:
• Ensures symmetrical airflow and balanced cooling efficiency.
• Reduces load on each fan, potentially extending lifespan compared to a single fan doing all the work.
• Provides redundancy - if one fan fails, the second may help prevent immediate overheating during transit or cooldown.
• Simplifies maintenance by replacing both fans together, avoiding mismatched wear and preserving consistent airflow characteristics.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99662413500
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
This OE Match radiator and coolant pipe replacement kit is an all-in-one set of high-quality hoses and pipes engineered to replace the most common radiator and coolant delivery lines on Porsche 987 Boxster / Cayman and 997 Carrera models. Designed to match the factory routing and fitment, the kit includes radiator feed and return hoses, upper intake pipes, bypass lines, and related OE Match connectors required for a thorough cooling system service or overhaul.
Fits:
Porsche 997 Gen 1
Porsche 997 Gen 2
Porsche 987 Boxster Gen 1
Porsche 987 Boxster Gen 2
Porsche 987C Cayman Gen 1
Porsche 987C Cayman Gen 2
Manual & Tiptronic cars.
As engines age and operate under heat cycles and pressure, rubber hoses and coolant pipes can become soft, cracked, swollen, or restricted, leading to leaks, overheating, and reduced cooling performance. This comprehensive OE Match kit provides direct-fit replacements for the critical coolant lines between the radiator cores, coolant pump, thermostat housing, heater core, and engine block. Each component in the kit is manufactured to meet or exceed the original Porsche specification in hose inner diameter, bend geometry, wall thickness, and connection profile so that it installs cleanly into factory brackets and ports without modification. OE Match materials are chosen for long-term resistance to heat, coolant chemical exposure, and mechanical stress, ensuring durable performance throughout the life of the engine. This kit simplifies maintenance and repair by grouping all key radiator and coolant pipe replacements into one convenient solution, reducing parts hunting and ensuring that worn or deteriorated hoses do not compromise the cooling system’s integrity after other components (such as radiators or pumps) are serviced.
What This Kit Does:
The coolant and radiator pipes in this kit work together to:
- Carry coolant flow between the engine, thermostat, heater core, coolant pump, and radiator
- Maintain correct pressure and temperature balance across the cooling system
- Support reliable heat rejection through the radiator cores
- Prevent coolant loss and overheating due to brittle or collapsed hoses
- By matching OE geometry and fitment, these hoses help maintain efficient coolant circulation and stable operating temperatures during normal driving as well as spirited use.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADANDPIPEKIT997.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Radiators for Water Coolant Fluid. Porsche Boxster 987 / Cayman 987C / 997 (OE Part No. 99710613102 / 99710613202)
Fits:
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005-08
Porsche 997 2005-08
Radiator fluid, or coolant, is the most important part of your car's cooling system, which protects your engine from overheating. Low coolant can lead to a breakdown and expensive repairs.
This product comes with 2 YEARS Warranty
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT997.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
This OE Match Radiator Water + A/C Condenser & Desiccator Set is a complete cooling and climate control core replacement solution for Porsche 986 Boxster and 996 911 models equipped with factory air conditioning. It combines the essential engine cooling radiators with the front A/C condenser and desiccator (receiver drier) — components that work together to manage engine and HVAC temperatures efficiently.
Fits:
- Porsche 986 Boxster 1997 - 2004
- Porsche 996 C2 / C4 1998 - 2005
- Porsche 996 GT3 MKI
- Porsche 996 GT3 MKII
- Porsche 996 GT3 RS
Kit Includes:
• OE Match Water Radiators (Left & Right) – 99610613181 & 99610613251
• OE Match Air Conditioning Condensers (Left & Right) – 2x 9975739101
• OE Match A/C Desiccator / Receiver Drier – 94457314301
• All necessary mounts, fittings, and brackets for direct replacement - 99970743441 & 99970726240
This set is ideal for:
• Cooling system overhauls
• A/C performance restoration
• Radiator and condenser replacement due to damage or age
• Preventative maintenance on high-mileage vehicles
Water Cooling System Components
The OE Match dual water radiators (99610613181 & 99610613251) replicate the original Porsche engine cooling cores, providing efficient heat exchange to maintain stable engine operating temperatures. Built with robust aluminium cores and corrosion-resistant tanks, these radiators handle long-term thermal cycling and high engine loads.
Air Conditioning Condenser & Desiccator
The OE Match A/C condenser is engineered to fit the factory A/C system, matching the original dimensions, port locations, and cooling capacity required for proper refrigerant condensation. Integrated within this module is the desiccator (receiver drier) - a critical component that removes moisture and contaminants from the refrigerant circuit, protecting the compressor and optimizing system efficiency.
Together, the radiators and condenser form the front-mounted heat exchangers that manage both engine coolant and A/C refrigerant heat rejection. With correct fitment and performance characteristics, this set restores proper engine temperature control and air conditioning cooling performance to factory expectations.
All components in this set are OE Match quality - meaning they are engineered to match original Porsche forms, fitments, and performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT996-986.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Fits:
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005-08
Porsche 997 2005-08
Radiator fluid, or coolant, is the most important part of your car's cooling system, which protects your engine from overheating. Low coolant can lead to a breakdown and expensive repairs.
This product comes with 2 YEARS Warranty
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT997.1.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Radiator for water coolant fluid (also known as Coolant radiator, Water radiator or Water coolant fluid cooler) is the backbone of a Porsche engine’s thermal management system. It dissipates heat from the engine’s water-based coolant, stabilising engine temperatures, preserving performance, efficiency, and long-term reliability.
Fits:
Porsche 986 Boxster 3.2L 2000 - 2004
Porsche 996 C2 / C4 / C4S / GT3 1998 - 2005
This product supersedes Porsche's old part numbers: 99610603750, 99610603751, 99610603752
Diagram Ref No 1.
The radiator’s main role is to remove heat from the engine coolant that carries thermal energy away from the engine block and cylinder head. Hot coolant flows into the radiator, where it travels through a series of fine tubes and cooling fins. Air passing through the radiator core (from vehicle motion and fans) absorbs the heat, lowering coolant temperature before it returns to the engine.
Proper heat rejection helps:
• Maintain optimal engine operating temperature
• Prevent overheating under everyday and high-load conditions
• Support fuel efficiency and emission control
• Preserve engine component durability and longevity
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610603753
The product you are viewing cross references to these numbers
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
Fits:
Porsche 996 3.4L / 3.6L 1998-05
Porsche 996 Turbo 2001-05
Porsche 986 Boxster S 3.2L 2000-05
Diagram ref no 4
Related reference numbers
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93011343000
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 Clubsport
- Porsche Cayman GT4 RS Clubsport 2020-2024
Engine coolant filler neck lid
OE Match engine coolant filler neck lid for Porsche 981 and 982 Boxster and Cayman, including the specified Spyder, GT4 and Clubsport applications. This replacement closes the coolant filling access point.
Fits
- Porsche 981 Boxster 2012 - 2016
- Porsche 981SP Boxster Spyder 2016
- Porsche 981C Cayman 2014 - 2016
- Porsche 981 Cayman GT4 2016
- Porsche 982 Boxster 2017 - 2024
- Porsche 982C Cayman 2017 - 2024
- Porsche 982 Spyder 2019 - 2024
- Porsche 982 Cayman GT4 2019 - 2024
Diagram ref no 2
What This Product Does
The lid forms the closure at the coolant filling neck, covering the opening between servicing operations. It helps exclude debris and keeps the access area properly closed after coolant maintenance.
Functions
- Closes the coolant filling opening.
- Shields the access point against dirt.
- Restores the closure when the previous lid is damaged or absent.
- Allows the filling area to be closed again following service work.
Technical Details
- Brand: OE Match.
- Supplied part reference: 98110604406.
- Identified in the supplied diagrams as a coolant end cap or water closure cap.
- Located within the coolant reservoir and filling-neck assembly.
Symptoms of Fault
- Visible cracks, distortion or broken sections.
- A closure that sits loosely or cannot be refitted correctly.
- An uncovered filling opening following loss of the lid.
- Residue or debris around the access point requiring inspection.
- Brittleness or damage discovered during reservoir maintenance.
Why Replacement Matters
Repeated handling, ageing and exposure to heat can leave the closure damaged or poorly seated. Renewing an unsuitable lid restores the intended closure of the filling access point. OE Match develops replacement components around Porsche applications, using original references and fitment checks to guide specification.
Inspect the adjoining neck before installation. Coolant loss or temperature warnings require diagnosis of the cooling system rather than assuming this access lid is responsible.
Reference Numbers
98110604406; 98110604405; 98110604404; 98110604403. Compare the vehicle's original reference and application details when selecting a replacement.
FAQs
Is it the expansion-tank pressure cap?
No. The supplied assembly diagrams distinguish this filling-neck closure from the separate reservoir pressure cap.
When should the lid be renewed?
Replace it if damaged, absent, distorted or unable to seat securely. Check the neck for related damage at the same time.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98110604406
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
A high-quality replacement radiator manufactured to closely match Porsche’s original equipment specification. It serves as a coolant heat exchanger that helps maintain proper engine operating temperature by transferring heat from the engine’s coolant to the surrounding air.
Fits:
Porsche 981 Boxster 2012 - 2016
Porsche 981SP Boxster Spyder 2016
Porsche 981C Cayman 2013 - 2016
Porsche 981C Cayman GT4 2016
Porsche 991.1 Carrera 2012 - 2016
Diagram ref no 1
The radiator circulates hot engine coolant through its cooling fins and tubes, allowing excess heat to dissipate into the air as it passes through. This cooling process keeps the engine within its optimal temperature range, preventing overheating and helping sustain performance, efficiency, and long-term reliability - especially under high-load driving conditions.
Function:
• Uses a network of tubes and fins to transfer heat from coolant to ambient air
• Works with the engine cooling fan and shroud to enhance airflow
• Helps maintain consistent operating temperature for the engine and drivetrain
• Supports optimal combustion, performance, and durability, particularly during spirited driving or hot weather
A functional radiator is essential to engine health and performance. Over time, radiators can suffer from:
• Clogging or corrosion
• Leaks or cracks
• Reduced cooling efficiency
• Coolant contamination.
A failing radiator may lead to overheating, reduced performance, and potential engine damage. Replacing a worn unit with a new radiator ensures proper cooling performance and helps maintain your Porsche’s original thermal management efficiency.
Replace the radiator if you notice:
• Coolant leaks or visible damage
• Overheating or fluctuating temperature gauge readings
• Coolant contamination or debris buildup
• During engine cooling system overhaul or when other related components are replaced
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99110613
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Restore efficient engine cooling and dependable temperature control with this OE Match Water Coolant Radiator, designed for compatible Porsche applications.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Radiator fluid, or coolant, is the most important part of your car's cooling system, which protects your engine from overheating. Low coolant can lead to a breakdown and expensive repairs.
The radiator is one of the principal components of the engine cooling system. Hot coolant leaving the engine passes through the radiator's internal channels, where heat is transferred through the radiator core and dissipated into the surrounding airflow. The cooled fluid then continues through the cooling circuit to help maintain the engine within its intended operating temperature range.
Porsche cooling systems operate under demanding conditions, and the radiator must withstand constant thermal cycling, cooling-system pressure, road debris and environmental contamination. Over time, the core can become damaged or restricted, while corrosion, deteriorated joints or physical impact can cause coolant leaks.
A failing radiator can reduce the cooling system's ability to control engine temperature and may eventually result in coolant loss or overheating. Replacing a damaged, leaking or inefficient unit with this OE Match Radiator helps restore cooling performance and protect the engine from excessive temperatures.
Diagram Ref No 1
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
- The radiator is responsible for releasing a substantial amount of the heat absorbed by the engine coolant.
- If its ability to dissipate heat is reduced, coolant may return to the engine at a higher temperature than intended. If the radiator also leaks, the cooling system may gradually lose coolant and eventually become unable to control engine temperature effectively.
- Replacing a defective radiator before severe overheating occurs can prevent substantially more expensive repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610613
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Radiator for water coolant fluid (also known as Coolant radiator, Water radiator or Water coolant fluid cooler) is the backbone of a Porsche engine’s thermal management system. It dissipates heat from the engine’s water-based coolant, stabilising engine temperatures, preserving performance, efficiency, and long-term reliability.
Fits:
Porsche 987 Boxster - 2005 to 2012
Porsche 987C Cayman - 2005 to 2012
Porsche 997 - 2005 to 2012
The radiator’s main role is to remove heat from the engine coolant that carries thermal energy away from the engine block and cylinder head. Hot coolant flows into the radiator, where it travels through a series of fine tubes and cooling fins. Air passing through the radiator core (from vehicle motion and fans) absorbs the heat, lowering coolant temperature before it returns to the engine.
Proper heat rejection helps:
• Maintain optimal engine operating temperature
• Prevent overheating under everyday and high-load conditions
• Support fuel efficiency and emission control
• Preserve engine component durability and longevity
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710613
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Fits:
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>
Porsche 997 2005-08
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99762412702
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
The OE Match Radiator Water Fan is a replacement right-hand electric cooling fan for selected Porsche 987 Boxster, Cayman and 997 models.
Fits:- Porsche 987 Boxster 2005>>
- Porsche 987C Cayman 2005>>
- Porsche 997 2005-08
Diagram Ref No 2
Mounted at the front of the vehicle behind the right-hand coolant radiator, the fan draws air through the radiator whenever natural airflow created by vehicle movement is insufficient.
This is particularly important when the vehicle is:
Idling.
Moving slowly.
Sitting in traffic.
Operating in hot weather.
Running the air-conditioning system.
Recovering from sustained high-load driving.
Porsche's water-cooled engines depend on continuous circulation of coolant through the front-mounted radiators. At normal road speed, forward movement provides substantial airflow through the radiator cores. When road speed falls, however, the electric cooling fans must provide the airflow needed to remove heat from the coolant.
A worn or failed right-hand fan can therefore allow engine temperature to rise during low-speed driving even though the cooling system may appear normal at higher speeds.
Replacing a defective fan helps restore correct airflow through the right-hand radiator and supports stable engine temperature, air-conditioning performance and overall cooling-system reliability.
What This Product Does:
The right-hand radiator fan moves ambient air through the right-side coolant radiator.
Its main functions are to:
- Draw cooling air through the radiator.
- Maintain coolant temperature at low road speeds.
- Provide cooling while the vehicle is stationary.
- Supplement natural airflow.
- Help prevent overheating in traffic.
- Support the cooling system during hot-weather operation.
- Assist cooling when air-conditioning demand is high.
- Work together with the opposite-side cooling fan.
- Maintain reliable engine cooling under changing operating conditions.
Symptoms Of Wear Or Failure:
Possible symptoms include:
- Engine temperature rising in slow traffic.
- Temperature normal at speed but increasing at idle.
- Right-hand fan not operating.
- One cooling fan running while the other remains stationary.
- Intermittent fan operation.
- Fan running slowly.
- Grinding or rumbling noises.
- Squealing.
- Excessive vibration.
- Fan blades wobbling.
- Fan stopping after becoming hot.
- Electrical burning smell.
- Blown fuse.
- Overheated electrical connector.
- Air-conditioning performance becoming poor while stationary.
- Engine overheating during low-speed driving.
Why Replacement Matters:
Replacing a worn or failed Radiator Water Fan helps restore:
- Correct radiator airflow.
- Stable coolant temperature.
- Reliable low-speed cooling.
- Balanced left/right radiator airflow.
- Reduced overheating risk.
- Correct cooling performance in traffic.
- Proper electrical fan operation.
- Reliable air-conditioning heat-exchanger airflow.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99762412802
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
This radiator cooling fan is a direct-fit OE Match replacement part for older Porsche 911 996 and Porsche Boxster 986 models. Designed to OE dimensions and specifications for proper fitment and clearance. Restores cooling efficiency and A/C performance.
Sold each, 2 required per vehicle.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 996 C2, C4, GT3 1998 - 2005
Diagram ref no 2.
The purpose of this radiator cooling fan is to draw air through the radiator and air conditioning condenser when the vehicle's speed is low - for example, when idling or in traffic - helping maintain the proper coolant and cooling system temperature. This keeps the engine cool and the air conditioning system operating efficiently.
• Plug-and-play installation: fits directly into the original fan housing (left or right depending on configuration) without modification.
As cooling fans age, their motors and bearings can wear out, their brushes may degrade, or blade balance may shift. This reduces airflow, which in slow traffic or hot conditions can cause elevated engine or coolant temperatures, risking overheating or reduced A/C performance. A correct replacement fan ensures reliable cooling, protects the engine and maintains comfort and safety.
When to replace:
• Fan fails to activate when hot / radiator temperature rises
• Fan runs loudly, rattles or vibrates - indicating worn bearings or balance issues.
• Car overheats or A/C performance drops during low-speed driving or idle.
• Original fan removed or damaged during cooling-system maintenance (radiator, hoses, etc.).
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99662413500
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche Cayman 2.7L 981 2013-16
Fits:
Porsche 991 C2 / C2S 2012>>
Porsche 981 Boxster 2.7L 2012>>
Porsche 981C Cayman 2.7L 2013>> (I008)
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99162493902
The product you are viewing cross references to these numbers
-
water cooling - 3 - for 986 Boxster 1997-04 105-15
-
radiator centre 986 Boxster S 3.2L (M008) 2000 ONWARDS 105-17
-
refrigerant circuit 986 Boxster 1997-04 813-25
-
water cooling - 2 - For 987 Boxster / Boxster S 2005-08 105-10
-
water cooling - 3 - for 987 Boxster / Boxster S 2005-08 105-15
-
radiator centre 986 Boxster S (M96.26/21/22) I249 Tiptronic Transmission 2005-08 105-17
-
refrigerant circuit 987 Boxster / Boxster S 2005-08 813-25
-
Water cooling 2 (Model: A120,A121) 987.2 Boxster/ Boxster 2009-12 105-010
-
Water cooling 3 (Model: A120,A121) 987.2 Boxster / Boxster S 2009-12 105-015
-
Refrigerant circuit 987.2 Boxster / Boxster S 2009-12 813-025
-
Water cooling / Radiator / Fan 982 Boxster / Boxster S 2012-16 105-015
-
Water cooling / Water reservoir / Oil inlet 981 Boxster / Boxster S 2012-16 105-020
-
Water cooling / Water reservoir / Oil inlet 981 Boxster / Boxster S 2012-16 105-020
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Refrigerant circuit - FRONT - 981 Boxster / Boxster S 2012-16 813-020
-
Water cooling / Radiator / Fan 981.SP Boxster Spyder 2016 105-015
-
Water cooling / Water reservoir / Oil inlet 981.SP Boxster Spyder 2016 105-020
-
Refrigerant circuit - FRONT - 981.SP Boxster Spyder 2016 813-020
OEMatch Water / Coolant Radiators — Fit, Function, Confidence
OEMatch supplies water and coolant radiators for Porsche models. Radiators control engine temperature by transferring heat from coolant to air, helping to prevent overheating and limiting thermal stress on engine components. This overview explains common types, failure modes and what to check when a Porsche radiator needs replacement.
Available Types
- Aluminium-core radiators with welded construction for efficient heat transfer
- Radiators with reinforced end tanks for higher-load or heavy-use applications
- Application-specific units for transaxle and front-engine Porsche models, including designs tuned for cooling capacity and packaging
Understanding OEMatch Water / Coolant Radiators
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original water and coolant radiators. OE (Original Equipment) refers to parts matching original specifications for the water and coolant radiators and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM water and coolant radiators engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Radiators move heat from the engine coolant into the airstream via a core of tubes and fins; end tanks and joints direct flow and sustain pressure. Materials and construction influence resistance to corrosion, mechanical damage and thermal cycling. OEMatch catalogues thousands of part numbers and OE cross-references to support coverage across Porsche model lines and continues to expand its range for long-term vehicle support.
Benefits Include
- Restored cooling efficiency and consistent engine temperature control
- Reduced risk of overheating and related engine damage
- Improved longevity through corrosion-resistant materials and quality joins
Why Water / Coolant Radiators Wear and Fail
- Corrosion and internal scale from old or contaminated coolant
- Leaks from cracked tanks, damaged cores or failed seals and joints
- Blockages caused by debris, oil contamination or coolant breakdown products
- Physical damage from road debris or impact
The Importance of Replacing with OEMatch Water / Coolant Radiators
A compromised radiator reduces cooling capacity and raises the risk of overheating, which can lead to costly engine repairs and degraded performance. Choosing a replacement designed for Porsche applications restores correct coolant flow and heat transfer, maintains engine operating temperature and supports reliable day-to-day use and spirited driving alike.
Advantages
- Aluminium cores and precision joins that support efficient heat exchange
- Reinforced end tanks and durable connections for leak resistance
- Manufactured to original-spec dimensions and tolerances so fitment aligns with factory mounting and cooling system routing
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified, and confirm correct hose connections, clamps and coolant specification after fitting.
