How to replace the water pump on 4.8L, 5.3L, and 6.0L engines on Chevrolet Express 2500?

For 4.8l, 5.3l, and 6.0l engine Water Pump replacement start with draining the cooling system. Then take off the air cleaner assembly, Fan Clutch, and accessory Drive Belt. Adjust the inlet hose clamp in position before removing the hose. Then modify the outlet hose clamp and take out the outlet hose. After moving the heater inlet clamp you should disconnect the heater inlet hose. Unbolt the Water Pump and take out the components including both gaskets. Throw away the old gaskets. Before adding new gaskets install the Water Pump only when you see a clean gasket area. Start by putting Water Pump bolts in position and turn them to 15 n.m (11 lb ft) initially and later tighten them to 30 n.m (22 lb ft). Put back the heater inlet hose by tightening its clamp then set the outlet hose and its clamp before placing the inlet hose and its clamp. Installation ends when you install the accessory Drive Belt, fan blade and clutch parts as well as the air cleaner and top off the cooling system.

OEM Chevrolet Express 2500 Water Pump

H2O Pump

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11 Water Pumps found

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Chevrolet Express 2500 Water Pump Part Number: 12637105
$260.71 MSRP: $482.35
You Save: $221.64 (46%)
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Product Specifications
- Other Name: Pump, Engine Coolant
- Replaces: 98098889, 97372515, 98031233
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2016 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 6.6 L DIESEL
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Chevrolet Express 2500 Water Pump Part Number: 89060527
$232.95 MSRP: $456.07
You Save: $223.12 (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:
- 1996-2006 Chevrolet Express 2500 | Base, LS | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
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Chevrolet Express 2500 Water Pump Part Number: 12703898
$187.62 MSRP: $364.18
You Save: $176.56 (49%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Kit-Water *Use Together With Gask; Pump Kit, Engine Coolant
- Replaces: 12681184, 12686763, 19256261
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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Chevrolet Express 2500 Water Pump Part Number: 12681417
$289.52 MSRP: $561.92
You Save: $272.40 (49%)
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Product Specifications
- Other Name: Pump Kit-Water; Pump Kit, Engine Coolant
- Replaced by: 19434033
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2020 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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Chevrolet Express 2500 Water Pump Part Number: 19168610
$223.61 MSRP: $433.95
You Save: $210.34 (49%)
Ships in 1-2 Business Days
ADD TO CART
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:
- 1996-1998 Chevrolet Express 2500 | Base, LS | 8 Cyl 6.5 L DIESEL
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Chevrolet Express 2500 Water Pump Part Number: 19168609
$249.47 MSRP: $484.18
You Save: $234.71 (49%)
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:
- 1999-2002 Chevrolet Express 2500 | Base, LS | 8 Cyl 6.5 L DIESEL
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Chevrolet Express 2500 Water Pump Part Number: 12725728
$282.59 MSRP: $553.28
You Save: $270.69 (49%)
ADD TO CART
Product Specifications
- Other Name: Pump, Engine Coolant
- Replaced by: 12735409
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 6.6 L GAS
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Chevrolet Express 2500 Water Pump Part Number: 12707676
$166.89 MSRP: $493.96
You Save: $327.07 (67%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Water Pump Assembly
- Replaced by: 12740339
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2024 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
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Chevrolet Express 2500 Water Pump Part Number: 12645126
$168.76 MSRP: $327.52
You Save: $158.76 (49%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump, Engine Coolant
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2022 Chevrolet Express 2500 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
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Chevrolet Express 2500 Water Pump Part Number: 89018166
Product Specifications
- Other Name: Pump Kit, Water; Water Pump Assembly
- Replaces: 12458935, 12456113, 88894290, 89017439, 89018040
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2007 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Water Pump Part Number: 12600767
Product Specifications
- Other Name: Pump, Water; Engine Water Pump; Water Pump Assembly
- Replaces: 12587305
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2010 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS

Chevrolet Express 2500 Water Pump

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Chevrolet Express 2500 Water Pump Parts Questions & Experts Answers

Water Pump
12681417
Q: How to replace the water pump on 4.8L, 5.3L, and 6.0L engines on Chevrolet Express 2500?
A:
For 4.8l, 5.3l, and 6.0l engine Water Pump replacement start with draining the cooling system. Then take off the air cleaner assembly, Fan Clutch, and accessory Drive Belt. Adjust the inlet hose clamp in position before removing the hose. Then modify the outlet hose clamp and take out the outlet hose. After moving the heater inlet clamp you should disconnect the heater inlet hose. Unbolt the Water Pump and take out the components including both gaskets. Throw away the old gaskets. Before adding new gaskets install the Water Pump only when you see a clean gasket area. Start by putting Water Pump bolts in position and turn them to 15 n.m (11 lb ft) initially and later tighten them to 30 n.m (22 lb ft). Put back the heater inlet hose by tightening its clamp then set the outlet hose and its clamp before placing the inlet hose and its clamp. Installation ends when you install the accessory Drive Belt, fan blade and clutch parts as well as the air cleaner and top off the cooling system.