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Oil Coolers / Radiators / Heat Exchangers
By OE Match
- 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 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
Restore the integrity of your Porsche engine's oil cooling system with this OE Match Engine Oil Cooler Vent Hose
Fits:
- 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 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
Diagram Ref No 30
The vent hose forms part of the engine oil cooler system, providing the necessary connection between associated components and helping the system operate correctly. Positioned within the engine compartment, the hose is continually exposed to heat, vibration and temperature cycling, which can cause the original material to harden and deteriorate with age.
Replacing a brittle, cracked or damaged hose helps maintain a secure system and reduces the risk of leaks or further deterioration.
What Does an Engine Oil Cooler Vent Hose Do?
The oil cooler vent hose forms part of the connections associated with the engine oil cooling system. Its purpose is to maintain the correct routing and ventilation between the relevant components while providing a flexible connection capable of accommodating engine movement and vibration.
A serviceable hose helps provide:
Correct operation of the associated oil cooler system Secure connection between components Resistance to engine movement and vibration Reliable sealing and system integrity
Why Do Oil Cooler Vent Hoses Fail?
Engine compartment hoses naturally deteriorate with age. Continuous exposure to heat causes the material to gradually lose flexibility, while vibration and repeated heating and cooling cycles can accelerate deterioration.
Common causes include:
- Age and high mileage
- Constant engine heat
- Repeated heat cycles
- Rubber becoming hard or brittle
- Cracking around connection points
- Oil and chemical contamination
- Engine vibration
- Previous removal or incorrect installation
Older hoses may appear serviceable externally but can crack when disturbed during maintenance.
When Should the Hose Be Replaced?
Replacement should be considered if:
- Cracks or splits are visible
- The hose has become hard or brittle
- Connections are loose or deteriorated
- Leakage or residue is visible around the hose
- The hose is damaged during removal
- The oil cooler system is being serviced
- The engine is undergoing major maintenance or refurbishment
Preventative replacement is particularly worthwhile when surrounding components have already been removed, avoiding additional labour should an ageing hose fail later.
Porsche Engine Oil Cooler Hoses & Cooling System Components
The engine oil cooling system plays an important role in maintaining stable operating temperatures and protecting internal engine components. Hoses and connections within the system are therefore important service items, particularly as Porsche vehicles become older.
Heat, vibration and age can cause original hoses to become brittle, cracked or unreliable. Inspecting and replacing deteriorated hoses during oil cooler or engine maintenance helps prevent leaks and provides greater confidence in the integrity of the system.
When replacing an oil cooler vent hose, it is also worthwhile inspecting nearby hoses, connectors, seals and fittings for similar age-related deterioration.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610623053
The product you are viewing cross references to these numbers
OEMatch Oil Coolers / Radiators / Heat Exchangers — Durability, Sealing, Performance
OEMatch supplies oil coolers, radiators and heat exchangers for Porsche models, addressing thermal management across classic and modern engines. The selection covers core cooling assemblies and related heat-transfer items to help maintain correct oil and coolant temperatures and support long-term engine reliability during everyday use and demanding driving.
Available Types
- Oil coolers (oil-to-air and oil-to-water)
- Radiators and condenser assemblies
- Heat exchangers for oil and transmission cooling
Understanding OEMatch Oil Coolers / Radiators / Heat Exchangers
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original oil coolers, radiators and heat exchangers.
OE (Original Equipment) refers to parts matching original specifications for the oil coolers, 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 coolers, radiators and heat exchangers engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. OEMatch maintains a broad catalogue and continues to develop new lines to support repairs, restorations and routine maintenance for a wide range of Porsche applications.
Benefits Include
- Restores correct oil and coolant temperature regulation to protect internal components
- Reduces risk of overheating and associated engine wear
- Maintains oil viscosity and lubrication under sustained or high-load operation
Why Oil Coolers / Radiators / Heat Exchangers Wear and Fail
- Corrosion or physical damage from road debris and environmental exposure
- Internal clogging from sludge, contaminated oil or coolant residues
- Leaking seals, fittings or thermal fatigue that reduce cooling efficiency
The Importance of Replacing with OEMatch Oil Coolers / Radiators / Heat Exchangers
Replacing a worn or leaking oil cooler, radiator or heat exchanger preserves lubrication quality, prevents overheating and helps avoid costly engine damage. Timely replacement restores thermal balance and reliability for Porsche engines, supporting predictable performance and reducing the risk of secondary failures during road or track use.
Advantages
- Manufactured from corrosion-resistant materials for long service life
- Direct-fit options made to original-spec dimensions for consistent performance
- Catalogue coverage and ongoing development to match Porsche application needs
