How to replace the water pump on 4.8L, 5.3L, and 6.0L engines on Chevrolet Express 1500?

Before working on water pumps for 4.8l, 5.3l, and 6.0l engines drain the cooling system then detach air cleaner, fan clutch, and accessory Drive Belt pieces. You need to disconnect the inlet hose first at both clamps before pulling it free from the Water Pump. Next remove the outlet hose by unclipping its clamps. After that take off the heater inlet hose clamp and disconnect the hose from the heater. Take out the Water Pump by removing the bolts first and then taking out the unit with its gaskets for proper disposal. Apply new gaskets when you install the Water Pump while keeping all components clean from oil and other debris. Apply new Water Pump gaskets before installing the Water Pump. Secure its bolts at 15 nm and tighten them to 30 nm during final torque. Fasten the heater hose inlet first then add the outlet and inlet clamp. Reattach the belt for the accessories, fan and compressor parts, and place the air filter unit back in place. Also add fluid to the cooling system.

OEM Chevrolet Express 1500 Water Pump

H2O Pump

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Chevrolet Express 1500 Water Pump Part Number: 89060527
$232.95 MSRP: $456.07
You Save: $223.12 (49%)
Ships in 1-3 Business Days
ADD TO CART
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:
- 1996-2014 Chevrolet Express 1500 | Base, LS, LT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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Chevrolet Express 1500 Water Pump Part Number: 12703898
$187.62 MSRP: $364.18
You Save: $176.56 (49%)
Ships in 1-2 Business Days
ADD TO CART
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 1500 | Base, LS, LT | 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 Water Pump Part Number: 12681417
$289.52 MSRP: $561.92
You Save: $272.40 (49%)
ADD TO CART
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:
- 2007-2014 Chevrolet Express 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 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 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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Chevrolet Express 1500 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 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS

Chevrolet Express 1500 Water Pump

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Chevrolet Express 1500 Water Pump Parts and Q&A

Water Pump
89060527
Q: How to replace the water pump on 4.8L, 5.3L, and 6.0L engines on Chevrolet Express 1500?
A:
Before working on water pumps for 4.8l, 5.3l, and 6.0l engines drain the cooling system then detach air cleaner, Fan Clutch, and accessory Drive Belt pieces. You need to disconnect the inlet hose first at both clamps before pulling it free from the Water Pump. Next remove the outlet hose by unclipping its clamps. After that take off the heater inlet hose clamp and disconnect the hose from the heater. Take out the Water Pump by removing the bolts first and then taking out the unit with its gaskets for proper disposal. Apply new gaskets when you install the Water Pump while keeping all components clean from oil and other debris. Apply new Water Pump gaskets before installing the Water Pump. Secure its bolts at 15 nm and tighten them to 30 nm during final torque. Fasten the heater hose inlet first then add the outlet and inlet clamp. Reattach the belt for the accessories, fan and compressor parts, and place the air filter unit back in place. Also add fluid to the cooling system.