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Water / Coolant Pumps
Sold individually.
Fits:
Porsche 986 Boxster 1997-04
Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2005-08
Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche Carrera GT 2004-06
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037817701
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 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
- 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 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Carrera GT 2003-06
Sold individually.
Fits:
Porsche 986 Boxster 1997-04
Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2005-08
Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche Carrera GT 2004-06
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037817701
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 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
- 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 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Carrera GT 2003-06
The OE MATCH 82°C Thermostat Insert is a replacement engine cooling-system component designed to regulate coolant circulation according to engine temperature. It helps the engine warm up efficiently while allowing increased coolant flow through the cooling system as operating temperature rises.
Fits:
- Porsche Carrera GT 2003-06
Diagram Ref No 2
Rated at 82°C, this thermostat insert is designed for compatible applications requiring this temperature specification. Correct thermostat operation is essential for maintaining stable coolant temperatures and protecting the engine from excessive heat.
What This Product Does:
The thermostat insert functions as a temperature-controlled valve within the engine cooling system.
When the engine is cold, the thermostat restricts coolant circulation through the radiator, helping the engine reach its intended operating temperature efficiently.
As coolant temperature rises towards the thermostat's specified operating range, the thermostat begins to open. This allows increased coolant circulation through the radiator so excess heat can be removed.
A correctly functioning 82°C thermostat insert helps:
- Regulate coolant circulation
- Control engine operating temperature
- Promote efficient engine warm-up
- Increase radiator flow as coolant temperature rises
- Prevent unnecessary overcooling
- Reduce the risk of excessive engine temperatures
- Maintain consistent cooling-system operation
- Support dependable engine performance
Symptoms Of Wear Or Failure:
Thermostats operate continuously through repeated heating and cooling cycles. Over time, the internal mechanism can become sluggish, stick in one position or fail to open and close correctly.
Common symptoms include:
- Engine overheating
- Engine running hotter than expected
- Temperature gauge readings fluctuating
- Sudden increases in coolant temperature
- Engine taking unusually long to warm up
- Engine consistently running too cool
- Poor or inconsistent cabin heater performance
- Cooling fans operating more frequently than normal
- Coolant temperature warning messages
- Reduced fuel efficiencyInconsistent engine operating temperature
These symptoms can vary depending on whether the thermostat has become stuck closed, stuck open or partially restricted.
Why Replacement Matters:
Correct engine temperature is essential for performance, efficiency and long-term engine reliability.
The thermostat provides the balance between rapid warm-up and effective cooling. Once it can no longer regulate coolant flow accurately, the engine may operate outside its intended temperature range.
Replacing a worn or defective thermostat insert helps restore:
- Controlled coolant circulation
- Stable engine operating temperature
- Effective radiator cooling
- Predictable engine warm-up
- Consistent cabin heater performance
- Efficient engine operation
- Protection against overheating
Ignoring a malfunctioning thermostat can place unnecessary stress on other cooling-system components and, in severe overheating situations, may lead to significantly more expensive engine repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9971062258A
The product you are viewing cross references to these numbers
- Porsche Carrera GT 2003-06

Hella ref no 8MT 358 083-061
Fits:
Porsche Carrera GT 2004-06
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9971062258A
The product you are viewing cross references to these numbers
- Porsche Carrera GT 2003-06

Fits:
Porsche Carrera GT 2004-06
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9971062258A
The product you are viewing cross references to these numbers
- Porsche Carrera GT 2003-06
Water / Coolant Pumps – Reliable Engine Cooling for Porsche Vehicles
Water / coolant pumps are at the heart of your Porsche’s cooling system. Their job is to circulate coolant through the engine, radiator, and heater core, maintaining the correct operating temperature and preventing overheating. A properly functioning water pump ensures efficient heat transfer, optimal performance, and long-term engine reliability.
At Design911, we supply a wide range of genuine and high-quality water pumps for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, Panamera and the transaxle cars. Each pump is precision-engineered to deliver consistent coolant flow, high durability, and dependable performance - ensuring your Porsche’s engine stays cool under all driving conditions.
What Do Water Coolant Pumps Do?
Water pumps are a critical
part of your engine’s temperature control system. They:
- Circulate coolant between the engine block, radiator, and heater system.
- Regulate temperature by dispersing heat efficiently throughout the system.
- Maintain coolant pressure for consistent engine operation.
- Support performance and longevity, preventing damage from excessive heat.
Without a properly working water pump, coolant circulation stops — leading to overheating, loss of performance, and potential engine failure.
Why Do Water Coolant Pumps Fail?
Even the most durable water
pumps can fail over time due to heat, age, and coolant contamination. Common
causes of failure include:
- Bearing wear or seal leaks caused by prolonged use or poor coolant quality.
- Corrosion or pitting from old or incompatible coolant mixtures.
- Cracked impellers or worn components reducing flow efficiency.
- Coolant leaks around the housing or pulley.
- Age-related wear, especially in high-mileage vehicles.
Signs of failure include visible coolant leaks, high engine temperature, whining noises from the pump area, or reduced cabin heating.
Why Replace a Faulty Water Coolant Pump?
A failing water pump can cause severe engine overheating, loss of coolant, or total breakdown. Replacing a worn pump restores reliable cooling and helps protect your engine from costly damage.
Benefits of
replacement include:
- Restored coolant circulation and cooling efficiency.
- Improved engine reliability and performance.
- Prevention of leaks, overheating, and corrosion.
- Long-lasting, high-quality construction for dependable operation.
All water pumps in this range are built using high-strength materials, precision impellers, and sealed bearings designed to deliver durability, quiet operation, and efficient coolant flow over time.