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Wahler
This Water Thermostat Insert is a Porsche 986 / 987 / 996 / 997 cooling system component designed to regulate engine coolant flow and maintain optimal operating temperature. Installed within the thermostat housing, the insert opens and closes according to coolant temperature, controlling circulation between the engine and radiator.
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 Boxster 987 2.7L 2005-08/08
- 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 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 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 2007-09
- Porsche 997 MK1 GT2 2007-09
Diagram Ref No 6
What This Product Does:
- Regulates coolant flow through the engine cooling system
- Maintains optimal engine operating temperature
- Controls engine warm-up and cooling efficiency
- Helps prevent overheating or overcooling
- Supports fuel efficiency and emissions performance
Symptoms Of Wear Or Failure:
- Engine overheating
- Engine running too cool or taking too long to warm up
- Fluctuating engine temperature readings
- Poor heater performance inside the cabin
- Coolant leaks around the thermostat housing
- Reduced fuel efficiency due to improper temperature regulation
Why Replacement Matters:
- Restores proper coolant flow and temperature control
- Prevents overheating and potential engine damage
- Improves engine efficiency and fuel economy
- Supports correct heater and climate control operation
- Ensures long-term reliability of the cooling system and engine operation
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610612554
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 Boxster 987 2.7L 2005-08/08
- 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 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 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
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