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Thermostat / Temperature Sensor
By OE Match
- 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
All pipes and fittings are precision-engineered to meet factory specifications for perfect fitment and reliable, leak-free operation.
Fits:
Porsche 964 - 1989 to 1994
Kit includes
1 x Oil thermostat
1 x Oil hose - thermostat to oil tank
1 x Oil hose
- thermostat to oil tank
1 x Oil hose - thermostat to oil filter housing
Diagram Ref No 21, 22, 46 and 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420704708
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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
Oil Thermostat Mounting Bonded Rubber Buffer
Sold each - 1 required per car
High-quality bonded rubber-metal buffer designed for mounting the oil thermostat housing on Porsche 964 models (1989–1994).
This OEM-style rubber-metal mounting bush provides secure
attachment of the oil thermostat housing while effectively absorbing vibration
and reducing stress within the oil system. It ensures correct positioning and
stability of the thermostat assembly under operating conditions.
Fits:
- 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
Diagram Ref No 20
Manufactured using a durable rubber-metal bonded construction, this component is engineered to withstand engine bay temperatures, oil exposure, and mechanical stress while maintaining flexibility and structural integrity.
A direct replacement part, this oil thermostat mounting buffer is essential for maintaining proper oil system function and preventing component wear.
Key Features
• Direct replacement bonded rubber-metal buffer
• Suitable for Porsche 964 (1989–1994)
• Designed for oil thermostat housing mounting
• Reduces vibration and mechanical stress
• Durable rubber-metal bonded construction
• OEM-style fit and function
Function and Purpose
This rubber buffer acts as a mounting support and vibration isolator for the oil thermostat housing.
It helps to:
• Secure the oil thermostat in its correct position
• Reduce vibration transfer within the oil system
• Prevent stress on oil lines and connections
• Protect surrounding components from wear
Why Replace Your Oil Thermostat Mounting Buffer
Over time, rubber-metal mounts can degrade due to heat, oil exposure, and vibration.
Common issues include:
• Cracked or hardened rubber
• Reduced vibration damping performance
• Movement or misalignment of the thermostat housing
• Increased stress on oil system components
Replacing the buffer restores proper mounting stability and helps maintain reliable oil system operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970324600
The product you are viewing cross references to these numbers
- 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
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
OEMatch Thermostat / Temperature Sensor — Fit, Function, Confidence
Engine thermostats and temperature sensors control coolant flow and send temperature data to the engine control unit, helping to maintain correct operating temperature for Porsche models. Proper function supports warm-up, emissions control and cabin heating, and reduces the risk of avoidable engine stress. OEMatch focuses on Thermostat / Temperature Sensor-related items selected for Porsche applications.
Available Types
- Fixed-opening and temperature-controlled thermostats
- Coolant temperature sensors and senders (engine and radiator)
- Thermostat housings and integrated sender assemblies
Understanding OEMatch Thermostat / Temperature Sensor
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original thermostat / temperature sensor. OE (Original Equipment) refers to parts matching original specifications for the thermostat / temperature sensor and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM thermostat / temperature sensor engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. A thermostat opens at a specified temperature to allow coolant to circulate through the radiator, while temperature sensors measure coolant or cylinder head temperature and inform fan control, fuel mixture and emissions strategies. Both components work together to keep the engine within its designed operating window and to support reliable vehicle operation.
Benefits Include
- Stable engine operating temperature and predictable warm-up
- Accurate temperature input for ECU control and cooling fans
- Consistent cabin heating and support for emissions systems
Why Thermostat / Temperature Sensor Wear and Fail
- Thermostat valve sticking or corrosion caused by debris and old coolant
- Sensor degradation from prolonged heat exposure and contaminated coolant
- Electrical faults, corroded connectors or damaged wiring affecting readings
The Importance of Replacing with OEMatch Thermostat / Temperature Sensor
Replacing worn or faulty thermostats and sensors restores reliable temperature control and helps prevent overheating, long warm-up times and poor fuel economy. Correctly matched replacements reduce the chance of installation issues and support consistent ECU behaviour, heater performance and long-term engine condition across Porsche model ranges.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Components selected for compatibility with factory cooling circuits and mounting points
- Cost-effective alternatives that preserve fit and function for Porsche applications
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified.