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Heat Exchanger
By OE Match
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
This Coolant Heater Valve is a OE MATCH Porsche 958 Cayenne / 970 Panamera Hybrid component designed to regulate the flow of coolant through the vehicle’s heating system. Acting as a control valve between the engine cooling circuit and the heater core, it ensures the correct amount of hot coolant is directed into the cabin heating system for optimal temperature control.
Fits:
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-14
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
Diagram Ref No 19
What This Product Does:
- Controls coolant flow to the heater core
- Regulates cabin heating temperature
- Ensures efficient operation of the heating and climate control system
- Maintains proper coolant circulation within the system
- Supports overall engine cooling and cabin comfort
Symptoms Of Wear Or Failure:
- No heat or inconsistent cabin heating
- Heater stuck on hot or cold Coolant leaks around the valve
- Engine temperature fluctuations
- Poor climate control performance
- Visible corrosion or sticking valve mechanism
Why Replacement Matters:
- Restores proper cabin heating control
- Ensures efficient coolant flow and system balance
- Prevents coolant leaks and potential overheating issues
- Improves climate control system performance
- Maintains driving comfort, especially in cold conditions
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95857280900
The product you are viewing cross references to these numbers
OEMatch supplies heat exchangers for Porsche models designed to restore heating performance and support vehicle-specific restoration or maintenance tasks. These units transfer waste heat into the cabin heating system, improving occupant comfort while helping to maintain intended engine temperatures and emissions behaviour across air-cooled and water-cooled applications.
Available Types- Auxiliary exhaust-to-cabin heat exchangers
- Heater cores for cabin heating circuits
- Engine oil and coolant-to-air exchangers
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original heat exchangers.
OE (Original Equipment) refers to parts matching original specifications for the 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 heat exchangers engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Heat exchangers move heat from exhaust or engine circuits into the heating system and cabin, helping to regulate temperatures, improve comfort and assist emissions management. They are commonly used when restoring classic models and when maintaining modern vehicles to preserve intended heating performance.
- Restores cabin heating performance and occupant comfort
- Reduces the risk of exhaust fumes entering the cabin when correctly sealed
- Helps maintain stable engine operating temperatures and supports emissions control
- Corrosion from moisture, road salt and exhaust condensation
- Thermal cycling that causes cracking or perforation
- Carbon and soot build-up that reduces heat transfer efficiency
Replacing a degraded heat exchanger reduces the likelihood of leaks that can allow exhaust gases into the vehicle, restores reliable cabin heating and helps preserve the engine’s designed thermal balance. When fitting a replacement, inspect seals, clamps and exhaust joints and confirm correct alignment and sealing to avoid leaks and premature deterioration.
Advantages- Corrosion-resistant materials for improved service life
- Designed to match original mounting points and clearances where specified
- Appropriate for restoration work and routine maintenance on Porsche models
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