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- Porsche 955 Cayenne 3.2L V6 2003-06
Water Thermostat Insert
Maintain the correct engine operating temperature with this OE
Match Water Thermostat Insert, designed
specifically for the
Porsche Cayenne 955 3.2ltr. Manufactured to original
equipment specifications, this premium replacement thermostat insert accurately
regulates coolant flow through the engine, helping the cooling system reach and
maintain the optimum operating temperature for maximum performance, fuel
efficiency and engine longevity.
Fits:
Diagram ref no 2
A properly functioning thermostat is one of the most important components within the engine cooling system. Replacing a worn or faulty thermostat helps prevent overheating, improves heater performance and ensures your Porsche operates exactly as intended.
What Does the Water Thermostat Insert Do?
The thermostat insert is a temperature-controlled valve located within the cooling system. It automatically regulates coolant flow between the engine and radiator.
Its primary functions include:
- Bringing the engine up to operating temperature quickly.
- Regulating coolant flow through the radiator.
- Preventing engine overheating.
- Improving fuel efficiency.
- Reducing engine wear during cold starts.
- Supporting effective cabin heating.
- Helping maintain stable engine temperatures under all driving conditions.
By continually adjusting coolant flow, the thermostat helps ensure the engine always operates within its ideal temperature range.
Why Do Water Thermostats Fail?
Thermostats are exposed to constant heat cycling and coolant
flow throughout their service life. Common causes of failure include:
- Wear of the internal wax capsule.
- Fatigue of the return spring.
- Corrosion caused by degraded coolant.
- Scale or debris restricting movement.
- Age-related deterioration.
- Overheating causing internal damage.
A thermostat can fail either closed, restricting coolant flow and causing overheating, or open, preventing the engine from reaching its correct operating temperature.
When Should the Water Thermostat Insert Be Replaced?
Replacement is recommended if you notice:
- Engine overheating.
- Engine running colder than normal.
- Slow cabin heater performance.
- Fluctuating coolant temperature.
- Coolant warning messages.
- Thermostat fault codes.
- During major cooling system servicing or water pump replacement.
Many Porsche specialists recommend replacing the thermostat whenever the cooling system is dismantled, as preventative maintenance can help avoid expensive engine damage.
Related reference numbers
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95510611300
The product you are viewing cross references to these numbers
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- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
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- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
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You might also need a new seal ring Part No. 90012300730
Fits:
Porsche 911 1977-89
Porsche 964 1989-94 (not Turbo)
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram.
Diagram Ref No 24.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160611200
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 993 1994-97
Click pictrue for large parts diagram.
Diagram Ref No 13.
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 993 1994-97
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99320705803
The product you are viewing cross references to these numbers