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Water / Coolant Pumps

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DISPLAYING 1 to 16 (of 23 products)
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WATERPUMPKIT01
Product Information
Product Information
The water pump adapter kit for the early 944s contains:
1 x Belt Guard Rail (94410521301)
2 x Locking Nuts (99908409202)
1 x Tension Roller (94410524104)

Necessary to go with water pump 94410602122 for models listed below.

Fits:
Porsche 924S 1986-88
Porsche 944 2.5L 1982-88 (not Turbo)
Porsche 944S 2.5L 1987-88


It is important to note that replacing your water pump also requires you to replace your timing belt too.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

WATERPUMPKIT01
94410524104
99908409201
94410521302

The product you are viewing cross references to these numbers
WATERPUMPKIT944T
Product Information
Product Information

Water pump, Thermostat, Cam & Balance Belt Kit Porsche 944 2.7L & 944 Turbo

Fits:
Porsche 944 2.5ltr turbo - 1987  to 1991

Porsche 944 2.7ltr - 1988 to 1989

8V ENGINE WITH AUTO ADJUSTER

Changing the water pump, pulley, and belts on an older Porsche 944 is essential for maintaining the car’s performance and preventing expensive repairs down the line. Here’s why: 

 1. Water Pump: The water pump is crucial for keeping the engine cool by circulating coolant throughout the system. Over time, the seals can wear out, and the pump itself can become less efficient or even fail completely. A failed water pump can cause the engine to overheat, leading to severe engine damage, which is costly to repair. Since the water pump is typically driven by the timing belt, replacing it during a timing belt service is a preventive measure. 

 2. Pulley: The pulleys, including the ones for the timing belt and accessory belts, can degrade over time due to wear and tear. If a pulley starts to fail, it can cause the belt to misalign or slip, which can lead to loss of power to critical systems like the water pump, alternator, or power steering. A worn-out pulley might also cause abnormal noises (like squealing) or vibrations, and in the worst case, it can lead to belt failure or further engine damage. 

 3. Belts: The timing belt and accessory belts (serpentine or V-belts) stretch and wear over time. A snapped timing belt can cause catastrophic engine damage, especially on interference engines like the 944’s. The accessory belts keep things like the alternator, air conditioning, and power steering working properly, and if they break, you’ll lose those functions—and possibly risk engine overheating if the water pump is driven by one of those belts. 

 4. Preventive Maintenance: On older cars, these parts have a limited lifespan, and replacing them as part of regular maintenance helps avoid major issues. The 944 is a well-built car, but its aging components need attention. Replacing the water pump, pulleys, and belts before they fail ensures your car runs smoothly and can help avoid the inconvenience and cost of unexpected breakdowns. 

 5. Improved Reliability: By proactively replacing these parts, you improve the overall reliability of your 944, ensuring that you can enjoy it without worrying about the engine overheating or being stranded due to a failed belt or pulley. In short, regular replacement of the water pump, pulleys, and belts is part of smart ownership for an older Porsche 944, helping preserve the engine’s health and longevity.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

WATERPUMPKIT944T
94410515704
94410221904
94410227706
94410202507
94410563106
94410524104
95110631100
95110602110

The product you are viewing cross references to these numbers
WATERPUMPKIT944S
Product Information
Product Information

Water pump, Thermostat, Cam & Balance Belt Kit Porsche 944 S 2.5L 16v

Fits:
Porsche 944S 2.5L 16v


Changing the water pump, pulley, and belts on an older Porsche 944 is essential for maintaining the car’s performance and preventing expensive repairs down the line. Here’s why: 

 1. Water Pump: The water pump is crucial for keeping the engine cool by circulating coolant throughout the system. Over time, the seals can wear out, and the pump itself can become less efficient or even fail completely. A failed water pump can cause the engine to overheat, leading to severe engine damage, which is costly to repair. Since the water pump is typically driven by the timing belt, replacing it during a timing belt service is a preventive measure. 

 2. Pulley: The pulleys, including the ones for the timing belt and accessory belts, can degrade over time due to wear and tear. If a pulley starts to fail, it can cause the belt to misalign or slip, which can lead to loss of power to critical systems like the water pump, alternator, or power steering. A worn-out pulley might also cause abnormal noises (like squealing) or vibrations, and in the worst case, it can lead to belt failure or further engine damage. 

 3. Belts: The timing belt and accessory belts (serpentine or V-belts) stretch and wear over time. A snapped timing belt can cause catastrophic engine damage, especially on interference engines like the 944’s. The accessory belts keep things like the alternator, air conditioning, and power steering working properly, and if they break, you’ll lose those functions—and possibly risk engine overheating if the water pump is driven by one of those belts. 

 4. Preventive Maintenance: On older cars, these parts have a limited lifespan, and replacing them as part of regular maintenance helps avoid major issues. The 944 is a well-built car, but its aging components need attention. Replacing the water pump, pulleys, and belts before they fail ensures your car runs smoothly and can help avoid the inconvenience and cost of unexpected breakdowns. 

 5. Improved Reliability: By proactively replacing these parts, you improve the overall reliability of your 944, ensuring that you can enjoy it without worrying about the engine overheating or being stranded due to a failed belt or pulley. In short, regular replacement of the water pump, pulleys, and belts is part of smart ownership for an older Porsche 944, helping preserve the engine’s health and longevity.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

WATERPUMPKIT944S
94410563110
94410524102
94410227706
94410202507
94410532303
94410221904
94410602122
94410612905

The product you are viewing cross references to these numbers
WATERPUMPKIT944S2
Product Information
Product Information

Water pump, Thermostat, Cam & Balance Belt Kit Porsche 944 S2

Fits:
Porsche 944 S2 3.0L


Changing the water pump, pulley, and belts on an older Porsche 944 is essential for maintaining the car’s performance and preventing expensive repairs down the line. Here’s why: 

 1. Water Pump: The water pump is crucial for keeping the engine cool by circulating coolant throughout the system. Over time, the seals can wear out, and the pump itself can become less efficient or even fail completely. A failed water pump can cause the engine to overheat, leading to severe engine damage, which is costly to repair. Since the water pump is typically driven by the timing belt, replacing it during a timing belt service is a preventive measure. 

 2. Pulley: The pulleys, including the ones for the timing belt and accessory belts, can degrade over time due to wear and tear. If a pulley starts to fail, it can cause the belt to misalign or slip, which can lead to loss of power to critical systems like the water pump, alternator, or power steering. A worn-out pulley might also cause abnormal noises (like squealing) or vibrations, and in the worst case, it can lead to belt failure or further engine damage. 

 3. Belts: The timing belt and accessory belts (serpentine or V-belts) stretch and wear over time. A snapped timing belt can cause catastrophic engine damage, especially on interference engines like the 944’s. The accessory belts keep things like the alternator, air conditioning, and power steering working properly, and if they break, you’ll lose those functions—and possibly risk engine overheating if the water pump is driven by one of those belts. 

 4. Preventive Maintenance: On older cars, these parts have a limited lifespan, and replacing them as part of regular maintenance helps avoid major issues. The 944 is a well-built car, but its aging components need attention. Replacing the water pump, pulleys, and belts before they fail ensures your car runs smoothly and can help avoid the inconvenience and cost of unexpected breakdowns. 

 5. Improved Reliability: By proactively replacing these parts, you improve the overall reliability of your 944, ensuring that you can enjoy it without worrying about the engine overheating or being stranded due to a failed belt or pulley. In short, regular replacement of the water pump, pulleys, and belts is part of smart ownership for an older Porsche 944, helping preserve the engine’s health and longevity.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

WATERPUMPKIT944S2
94410221904
94410532303
94410524102
94410563110
94410202507
94410227706
94410524104
94410602124

The product you are viewing cross references to these numbers
Special Order item
PCG10602124
Product Information
Product Information
Repair kit for water pump.

porsche

Fits:
Porsche 944/2 (1989 - 1989)
Porsche 944 Turbo (1989 - 1991)
Porsche 944 S2 (1989 - 1991)

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG10602124
PCG10602124
94410602124
944106921X
94410600300
944106921AX

The product you are viewing cross references to these numbers
Special Order item
PCG10602151
Product Information
Product Information
Repair kit for water pump.

porsche

Fits:
Porsche 944 Turbo (1989 - 1991)

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG10602151
PCG10602151
94410613204
94410601900
90004202501
90023416000
95110631300
95110631100
99970728340
90006701103
90007430201
9000760100B
90007534501
95110602110
95110602101
95110602104
95110602108
95110602110
951106921X
N01152427

The product you are viewing cross references to these numbers
Special Order item
PCG10602110
Product Information
Product Information
Sealing kit for coolant pump.

porsche

Fits:
Porsche 944/2 1987-89
Porsche 944 S 1987-88
Porsche 944 S2 1989-91

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG10602110
PCG10602110

The product you are viewing cross references to these numbers
Special Order item
95110615500
Product Information
Product Information
This seal ring fits between the water thermostat and water pump.

porsche

Fits:
Porsche 924S 1986-88
Porsche 944
Porsche 968

Click 'Zoom in' for large parts diagram.
Diagram ref no 10.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95110615500
95110615500
232.900

The product you are viewing cross references to these numbers
95110615500/1
Product Information
Product Information
This seal ring fits between the water thermostat and water pump.

elring

Fits:
Porsche 924S 1986-88
Porsche 944
Porsche 968

Click 'Zoom in' for large parts diagram.
Diagram ref no 10.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95110615500
95110615500
232.900

The product you are viewing cross references to these numbers
Special Order item
94410613204
Product Information
Product Information
Water Pump Gasket.


porsche

Fits:
Porsche 924S 2.5L 1986-88
Porsche 944 2.5L 1982-87
Porsche 944 Turbo 2.5L 1986-91
Porsche 944 Turbo S 2.5L 1988-91

Click "zoom in" for lagre parts diagram.
Diagran ref no 10



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94410613204
94410613204

The product you are viewing cross references to these numbers
Special Order item
94410613203
Product Information
Product Information
Water Pump Gasket.

porsche

Fits:
Porsche 944 2.7L 1989
Porsche 944 S2 3.0L 1989-91

Click "zoom in" for lagre parts diagram.
Diagran ref no 10
Special Order item
94410692905
Product Information
Product Information
Water Pump Thermostat Sealing Ring.


porsche

Fits:
Porsche 924S 1986-88
Porsche 944 1982-88
Porsche 944 Turbo 1986-88

Click 'Zoom in' for large parts diagram.
Diagram Ref No 11



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94410692905
94410692905

The product you are viewing cross references to these numbers
94410612905/1
Product Information
Product Information
Thermostat on water pump large.

oematch

Fits:
Porsche 924S 1986-88
Porsche 944 1982-88

Click 'Zoom in' for large parts diagram.
Diagram Ref No 3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94410612905
94410612905
94410601900
1114601110
92810612917
92810612905
92810612906
92810612916

The product you are viewing cross references to these numbers
94410612905/2
Product Information
Product Information
Thermostat on water pump large.

elring

Fits:
Porsche 924S 1986-88
Porsche 944 1982-88

Click picture for large parts diagram.
Diagram Ref No 3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94410612905
94410612905
94410601900
1114601110
4256.83D60
92810612917
92810612905
92810612906
92810612916

The product you are viewing cross references to these numbers
Special Order item
94410612905
Product Information
Product Information
Water Pump Thermostat. 

Fits:
Porsche 924S 1986>>1988
Porsche 944 1982>>1988

Diagram Ref No 3

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94410612905
94410612905
94410601900
92810612917
92810612905
92810612906
92810612916
94410612904

The product you are viewing cross references to these numbers
Special Order item
94410601900
Product Information
Product Information
Water pump thermostat. Porsche 944 3.0L S2

porsche

Fits:
Porsche 944 S2 3.0L

Click picture for large parts diagram.
Diagram Ref No 3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94410601900
94410601900

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 23 products)
1 2
About Water / Coolant Pumps

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.


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Porsche Water Pumps: Common Issues, Fixes, and Upgrades #porsche #porscheparts #porscheupgrade

In this tech talk, Lawrence from Design 911 breaks down everything you need to know about water pumps for Porsche models. From the iconic 911 to the Cayenne and Macan, discover why the water pump is one of the most crucial components in your car’s cooling system. 

Learn how water pumps work, the common signs of failure, and why regular replacement is essential to avoid catastrophic engine damage.

Whether you're maintaining your Porsche or considering a water pump upgrade, this video covers original and aftermarket options, as well as the pros and cons of plastic vs. metal impellers. Watch now to keep your Porsche running at its best!
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