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Porsche // 964 (911) (1989-1994) // 964 (911) C2 1989-93
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Water Thermostat Insert. Porsche 996 Turbo / 997 TT & GT3 / 955 Cayenne - 99610612573
99610612573/1
Vehicle Group
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
Information
Water Thermostat Insert.
Diagram Ref No 7
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610612573
The product you are viewing cross references to these numbers
This Wahler Water Thermostat Insert is a Porsche 996 Turbo / 997 TT & GT3 / 955 Cayenne cooling system component designed to regulate coolant flow and maintain the engine at its optimal operating temperature. Installed within the thermostat housing, this insert automatically opens and closes according to coolant temperature, controlling circulation between the engine and radiator for efficient thermal management.
Fits:
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
Diagram Ref No 7
What This Product Does:
- Regulates coolant flow through the cooling system
- Maintains optimal engine operating temperature
- Controls engine warm-up and cooling efficiency
- Helps prevent overheating and overcooling
- Supports fuel efficiency, emissions control, and engine performance
- Works with the radiator and water pump to maintain stable temperatures
Symptoms Of Wear Or Failure:
- Engine overheating Engine running too cool or taking too long to warm up
- Fluctuating temperature gauge readings
- Poor cabin heater performance
- Coolant leaks near the thermostat housing
- Reduced fuel efficiency caused by incorrect operating temperature
- Check engine light related to cooling system faults
Why Replacement Matters:
- Restores proper coolant circulation and temperature regulation
- Prevents overheating and potential engine damage
- Improves engine efficiency and fuel economy
- Ensures reliable heater and climate control operation
- Protects cooling system components from excessive stress and wear
- Maintains long-term engine reliability and performance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610612573
99610612570
99610612571
99610612572
99610612573
The product you are viewing cross references to these numbers
Price: £52.00
In stock
Related products
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Oil thermostat. Fits to oil lines.
Fits:
Porsche 964 1989-94
Please note: For early models with the early type thermostat you will also need:
96420724107 - Oil hose for thermostat
96420725103 - Oil pipe rubber (oil tank to thermostat)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 11.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420704708
The product you are viewing cross references to these numbers
Fits:
Porsche 964 1989-94
Please note: For early models with the early type thermostat you will also need:
96420724107 - Oil hose for thermostat
96420725103 - Oil pipe rubber (oil tank to thermostat)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 11.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420704708
96420704708
The product you are viewing cross references to these numbers
Price: £520.69
Orderable
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- 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
- 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
Information
Oil temperature sensor.
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
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
91160611200
The product you are viewing cross references to these numbers
Price: £53.75
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Thermostat rubber mount
Fits:
Porsche 964 1989-94
Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970324600
The product you are viewing cross references to these numbers
Fits:
Porsche 964 1989-94
Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970324600
99970324600
999.703.246.00
The product you are viewing cross references to these numbers
Price: £31.02
Orderable
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- 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
Information
Regulator Insert O-Ring.
Fits:
Porsche 964 1990-94
Porsche 993 1994-97
Click picture for large parts diagram.
Diagram Ref No 9.
Fits:
Porsche 964 1990-94
Porsche 993 1994-97
Click picture for large parts diagram.
Diagram Ref No 9.
Price: £12.33
Orderable