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Water / Coolant Pumps
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
This OE Match timing belt, tensioner, and idler rollers kit is a replacement front engine timing service kit for Porsche 928 models from 1978 to 1986. It includes the RD tooth timing cam belt, camshaft tensioner roller, and camshaft idler roller required for key timing belt drive service.
Fits:
Porsche 928S4 5.0L 1987 - 1992
Porsche 928GT 5.0L 1989 - 1991
Porsche 928GTS 5.4L 1992 - 1995
Diagram ref no; 1, 9, 10
The kit helps maintain correct camshaft timing, belt routing, and belt tension within the engine timing system. The timing cam belt synchronises crankshaft and camshaft movement, while the tensioner and idler rollers guide and support the belt as it operates.
Functions
• Replaces the timing cam belt
• Includes camshaft tensioner roller
• Includes camshaft idler roller
• Supports correct camshaft timing
• Helps maintain proper belt tension and belt tracking
• Replaces worn, noisy, rough, seized, or aged timing components
• OE Match replacement kit for Porsche 928 timing belt service.
Why Replace This Kit?
Timing belt and roller components are exposed to heat, age, mileage, engine load, and constant rotation. A worn timing belt can crack, stretch, lose teeth, or fail without warning, while worn rollers can become noisy, rough, loose, or seized. Replacing the belt and rollers together helps protect the timing system and supports reliable engine operation.
When to Replace This Kit
• The timing belt service interval is due
• The timing belt is cracked, worn, contaminated, stretched, or aged
• Rollers are noisy, rough, loose, or seized
• Belt tracking or tension issues are present
• Front engine timing components are being serviced
• Preventative replacement is being carried out during major maintenance
• The vehicle is undergoing Porsche 928 engine service or restoration.
Where it fits on the car
This kit fits at the front engine timing belt drive area on Porsche 928 models from 1978 to 1986. It supports the camshaft timing belt system according to the factory timing layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810557104
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Includes GEBA Water Pump and OE Match Timing Components
This water pump belt and pulley kit is a front engine cooling and timing service kit for Porsche 928 S4 and 928 GTS models. The kit includes a GEBA water pump together with OE Match timing belt and roller components required for key water pump and timing belt system maintenance.
Fits:
Porsche 928 S4 5.0L
Porsche 928 GTS 5.4L
The kit helps restore coolant circulation and timing belt drive reliability. The water pump circulates coolant through the engine cooling system, while the timing cam belt, camshaft tensioner roller, and camshaft idler roller support correct belt routing, belt tension, and camshaft timing operation.
Functions
• Replaces the water pump
• Replaces the RD tooth timing cam belt
• Includes camshaft tensioner roller
• Includes camshaft idler roller
• Supports correct coolant circulation
• Helps maintain accurate camshaft timing and belt tracking
• Suitable for Porsche 928 S4 and 928 GTS front engine service.
Why Replace This Kit?
Water pump and timing belt components are exposed to heat, coolant, bearing load, mileage, age, and constant engine operation. A failing water pump can leak, become noisy, or reduce coolant circulation. A worn timing belt can crack, stretch, lose teeth, or fail, while worn rollers can become rough, noisy, loose, or seized. Replacing these parts together during service helps protect the engine and supports long-term reliability.
When to Replace This Kit
• The timing belt service interval is due
• The water pump is leaking, noisy, or showing bearing wear
• The timing belt is cracked, worn, contaminated, stretched, or aged
• Camshaft rollers are noisy, rough, loose, or seized
• Coolant circulation or engine temperature issues are present
• Front engine timing components are being serviced
• Preventative replacement is being carried out during major maintenance.
Where it fits on the car
This kit fits at the front engine timing belt and water pump area on Porsche 928 S4 and 928 GTS models. It supports both the engine cooling circuit and the camshaft timing belt drive system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
WATERPUMP.928S4.GEB
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
This OE Match water pump belt and pulley kit is a replacement engine cooling and timing service kit for Porsche 928 S4 and 928 GTS models. It includes the water pump, RD tooth timing cam belt, camshaft tensioner roller, and camshaft idler roller required for key front engine timing and cooling system service.
Fits:
Porsche 928 S4 5.0L
Porsche 928 GTS 5.4L
The kit helps restore correct coolant circulation and camshaft timing operation. The water pump circulates coolant through the engine cooling system, while the timing cam belt, tensioner roller, and idler roller work together to maintain correct camshaft drive, belt routing, and belt tension.
Functions
• Replaces the water pump
• Replaces the RD tooth timing cam belt
• Includes camshaft tensioner and idler rollers
• Supports correct coolant circulation
• Helps maintain accurate camshaft timing
• Supports correct belt tension and belt tracking
• OE Match replacement kit for Porsche 928 timing belt and cooling system service.
Why Replace This Kit?
Timing belt and water pump components are subject to age, mileage, heat, coolant exposure, bearing wear, and constant engine load. A worn timing belt can crack, stretch, lose teeth, or fail, while worn rollers can become noisy, rough, loose, or seized. A failing water pump can leak, become noisy, or reduce coolant circulation. Replacing these components together during service helps protect the engine and supports long-term reliability.
When to Replace This Kit
• Timing belt service interval is due
• The timing belt is cracked, worn, contaminated, or aged
• The water pump is leaking, noisy, or showing bearing wear
• Camshaft rollers are noisy, rough, loose, or seized
• Coolant circulation or engine temperature issues are present
• Front engine timing components are being serviced
• Preventative replacement is being carried out during major maintenance.
Where it fits on the car
This kit fits at the front engine timing belt and water pump area on Porsche 928 S4 and 928 GTS models. It supports both the engine cooling circuit and the camshaft timing belt drive system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
WATERPUMP.928S4.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 S4 5.0L (1987 - 1991)
Porsche 928 GTS 5.0L (1992 - 1995)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG10601520
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche All 928 Models
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810613406
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche All 928 Models
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
The 92810613406/1 Water Pump Gasket is a vital component designed for use in all Porsche 928 models. This precision-engineered gasket plays a crucial role in maintaining the integrity and efficiency of the vehicle's cooling system by providing a reliable seal between the water pump and the engine.
The water pump is a key component responsible for circulating coolant throughout the engine to regulate its temperature. The gasket serves as a critical sealing element, preventing coolant leaks and ensuring that the system functions optimally. By maintaining a tight and secure seal, the 92810613406/1 Water Pump Gasket contributes to the overall cooling efficiency of the engine, helping to prevent overheating and ensuring consistent performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810613406
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 S4 5.0L
Porsche 928 GTS 5.4L
NOTE: Water Pump COMES WITH MOUNTING GASKET.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810601520
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 S4 5.0L
Porsche 928 GTS 5.4L
Please Note: Water Pumps DO NOT COME WITH MOUNTING GASKETS. Please add the gasket.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810601520
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 S4 5.0L
Porsche 928 GTS 5.4L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810601520
The product you are viewing cross references to these numbers
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.
