How to replace a water pump in an engine on GMC C3500?

Before servicing or fixing the Water Pump, drain the Radiator of all its coolant. Subsequently, remove the upper Fan Shroud then take off the Drive Belt. After that, unfasten the fan, Fan Clutch and pulley from the coolant pump. Take out the heater hose, the Radiator outlet hose and the bypass hose from the coolant pump. Take out the Water Pump bolts, get the coolant pump from the engine block and clean both the matching areas on the coolant pump and engine block. Throughout installation, attach new gaskets and the Water Pump, then, place gm p/n 12346004 thread sealant on the Water Pump bolts and secure them to 41 nm. Attach the bypass hose and the heater hose to the coolant pump and then join the Radiator outlet hose as well. After the pulley, fan and Fan Clutch are installed on the coolant pump hub, put the Drive Belt and upper Fan Shroud in place. Once the engine is running, remove the Radiator Cap and wait until you can feel the upper Radiator Hose warm up which shows that the thermostat has opened. When the engine is idling, add coolant up to the level of the bottom of the filler neck, fit on the Radiator Cap and ensure the arrows on the cap fit next to the overflow tube. Lastly, take a look at the cooling system to check for leaks.

OEM GMC C3500 Water Pump

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11 Water Pumps found

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GMC C3500 Water Pump
Part Number: 89060527
$230.39 MSRP: $447.13
You Save: $216.74 (49%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant
- Replaces: 12528917, 89017748, 12532528
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000, 1988-1994 GMC C3500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
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GMC C3500 Water Pump
Part Number: 19417097
$135.58 MSRP: $263.13
You Save: $127.55 (49%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant; Pump, Engine Coolant
- Replaces: 19201601, 88894005, 12532531, 12532529, 12369487
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1995 GMC C3500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS
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GMC C3500 Water Pump
Part Number: 12685965
$140.65 MSRP: $272.97
You Save: $132.32 (49%)
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Product Specifications
- Other Name: Pump Kit-Water; Pump Assembly; Water Pump Assembly; Pump Kit, Engine Coolant; Pump, Engine Coolant; Steering
- Replaces: 12522033, 12529305, 88894341
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C3500 | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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GMC C3500 Water Pump
Part Number: 19168610
$217.32 MSRP: $425.45
You Save: $208.13 (49%)
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Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant
- Replaces: 12534772, 12530176, 88894036
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 6.5 L DIESEL
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GMC C3500 Water Pump
Part Number: 19168609
$160.37 MSRP: $474.68
You Save: $314.31 (67%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Kit, Water; Pump Kit, Engine Coolant
- Replaces: 88894035, 12456231
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000 GMC C3500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 6.5 L DIESEL
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GMC C3500 Water Pump
Part Number: 12708488
$228.77 MSRP: $444.00
You Save: $215.23 (49%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Kit-Water; Water Pump Assembly; Pump Kit, Engine Coolant
- Replaces: 12529308, 12484890, 19168606
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C3500 | Base, High Sierra, Sierra Classic | 8 Cyl 7.4 L GAS
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GMC C3500 Water Pump
Part Number: 12708487
$308.60 MSRP: $553.54
You Save: $244.94 (45%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Kit-Water; Pump Kit, Engine Coolant
- Replaces: 12456326, 12527759, 19168601
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-2000 GMC C3500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Water Pump
Part Number: 19168611
Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly; Pump Kit, Engine Coolant
- Replaces: 12534417, 12529211, 88894044
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1995 GMC C3500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C3500 Water Pump
Part Number: 12337519
Product Specifications
- Other Name: Pump; Water Pump Assembly; Pump Kit, Engine Coolant; Pump, Engine Coolant
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 GMC C3500 | Base | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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GMC C3500 Water Pump
Part Number: 12534418
Product Specifications
- Other Name: Pump Kit-Water; Water Pump Assembly; Pump Kit, Engine Coolant; Pump, Engine Coolant
- Replaces: 12514269
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990, 1984-1986 GMC C3500 | Base, High Sierra, Sierra, Sierra Classic, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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GMC C3500 Water Pump Assembly
Part Number: 12523505
Product Specifications
- Other Name: Pump Kit, Water; Water Pump; Pump Kit, Engine Coolant
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986 GMC C3500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS

GMC C3500 Water Pump

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GMC C3500 Water Pump Parts Questions & Experts Answers

Water Pump
89060527
Q: How to replace a water pump in an engine on GMC C3500?
A: Before servicing or fixing the Water Pump, drain the Radiator of all its coolant. Subsequently, remove the upper Fan Shroud then take off the Drive Belt. After that, unfasten the fan, Fan Clutch and pulley from the coolant pump. Take out the heater hose, the Radiator outlet hose and the bypass hose from the coolant pump. Take out the Water Pump bolts, get the coolant pump from the engine block and clean both the matching areas on the coolant pump and engine block. Throughout installation, attach new gaskets and the Water Pump, then, place gm p/n 12346004 thread sealant on the Water Pump bolts and secure them to 41 nm. Attach the bypass hose and the heater hose to the coolant pump and then join the Radiator outlet hose as well. After the pulley, fan and Fan Clutch are installed on the coolant pump hub, put the Drive Belt and upper Fan Shroud in place. Once the engine is running, remove the Radiator Cap and wait until you can feel the upper Radiator Hose warm up which shows that the thermostat has opened. When the engine is idling, add coolant up to the level of the bottom of the filler neck, fit on the Radiator Cap and ensure the arrows on the cap fit next to the overflow tube. Lastly, take a look at the cooling system to check for leaks.

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