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Oil Radiators / Heat Exchangers
By OE Match
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
OE Match engine oil cooler / radiator designed to replace the original Porsche oil cooler that sits on the engine’s cooling circuit. It acts as a crucial element of the engine oil cooling system, transferring heat from the engine oil to the coolant or ambient airflow (depending on the specific engine layout) to maintain optimal oil temperature during operation.
Fits:
Porsche 996 1998 - 2005
Porsche 997.1 3.6L 2005 - 2008
Porsche 986 Boxster S 3.2L 1999 - 2004
Diagram Ref No 18.
The oil cooler regulates the temperature of engine oil as it circulates through the engine. By reducing thermal load on the oil, it helps:
• Maintain correct oil viscosity for effective lubrication
• Reduce wear on internal engine components
• Improve engine performance under load or high-temperature operation
• Prevent oil breakdown and reduce risk of overheating.
Without an effective oil cooler, engine oil can run too hot, degrading lubrication and potentially accelerating engine wear or promoting heat-related performance issues.
Function
• Heat dissipation: Transfers heat from the oil to coolant or airflow
• Oil temperature stability: Helps keep oil within operational temperature range
• Wear protection: Prevents high temperatures from accelerating oil degradation
• Performance support: Ensures stable lubrication for engine components under stress
The engine oil cooler operates in a harsh thermal environment and can suffer from corrosion, stone impact damage, leaks, or clogging over time. A compromised cooler can lead to:
• Overheated engine oil with reduced lubrication quality
• Increased engine wear and reduced component lifespan
• Poor performance under load and in hot conditions
• Higher risk of oil leaks or contamination
Replacing a worn or damaged oil cooler with a quality OE Match unit helps restore proper oil temperature control, improves overall engine reliability, and supports long-term performance.
When to replace. Replace the oil cooler when:
• There is visible oil leakage from the cooler or its connections
• You observe engine oil temperature issues or overheating warnings
• The cooler shows physical damage such as dents, corrosion, or deterioration
• You are performing a major engine coolant/oil system service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610702559
The product you are viewing cross references to these numbers
OEMatch Oil Radiators / Heat Exchangers — Durability, Sealing, Performance
Oil radiators and heat exchangers control oil temperature in Porsche engines and transmissions, supporting lubrication, consistent viscosity and component life under varied driving conditions. Many owners search for genuine or OEM oil radiators; OEMatch offers compatible replacements made to original-spec dimensions and tolerances for Porsche models.
Available Types
- Engine oil coolers for sump or external mounting
- Transmission and gearbox oil heat exchangers
- Auxiliary and remote oil radiators for additional cooling circuits
Understanding OEMatch Oil Radiators / Heat Exchangers
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original oil radiators and heat exchangers. OE (Original Equipment) refers to parts matching original specifications for the oil radiators and heat exchangers and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM oil radiators and heat exchangers engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. OEMatch provides a wide selection of Porsche-specific items, with thousands of listed part numbers and extensive OE cross-references catalogued; product lines are continually developed and subject to quality control to address cooling-system needs across Porsche generations.
Benefits Include
- Restored oil temperature control to protect lubrication and maintain consistent viscosity
- Reduced risk of overheating and oil contamination between circuits
- Improved serviceability and longer component life for engine and transmission assemblies
Why Oil Radiators / Heat Exchangers Wear and Fail
- Corrosion or internal blockage from degraded fluids or debris
- Physical damage from road debris or impacts to fins and housings
- Seal, gasket or joint failure leading to external leaks or cross-contamination
The Importance of Replacing with OEMatch Oil Radiators / Heat Exchangers
Replacing a faulty oil radiator or heat exchanger restores cooling efficiency and helps prevent oil breakdown, overheating and consequential engine or transmission damage. Specified replacements support correct service procedures for Porsche models and help maintain lubrication performance, pressure stability and long-term component reliability.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Made to original-spec dimensions for consistent sealing and durability
- Fits original mounting points and clearances to simplify installation
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.
