How to replace the water pump on LH6, LY2, LY5, and LMG engines on Chevrolet Silverado 1500?

When replacing the Water Pump (300) for lh6 ly2 ly5 and lmg engines you must first detach the air cleaner outlet duct and drain the cooling system. Reposition and unclamp the hose locking on the radiator vent inlet line at the coolant air bleed pipe connection point. You should move the clamp on the radiator inlet hose to expose it for hose removal from the Water Pump. Take the radiator inlets to the side before removing the accessory belt. Take off the radiator outlet hose from its Water Pump position and reposition the hose clamp. Adjust the clamp for the radiator surge tank outlet hose and disconnect the hose for service. Reverse the same steps after these areas are serviced. Shift the heater inlet hose clamp plus pull off the heater inlet hose until you can move it aside. Take off the Water Pump bolts (301) to extract the Water Pump (300) with its gaskets (309) and dispose of the gaskets. Before adding the new Water Pump install the device on only clean gasket surfaces. Fit the brand-new Water Pump assembly with the gaskets onto the engine block's surface and fasten the bolts (301) starting from a torque of 15 n.m (11 lb ft) and ending at 30 n.m (22 lb ft). Place back the heater inlet hose together with its clamp before reconnecting the radiator surge tank outlet hose and its clamp. Install the radiator outlet hose with its clamp followed by the accessory Drive Belt. Connect the hoses to their appropriate places according to their right positions, fix the radiator inlet hose to the Water Pump, and clamp it down. Join the radiator vent hose to the coolant air bleed pipe fitting by fitting the clamp on top. After filling the cooling system you need to put the air cleaner outlet duct back in place.

OEM Chevrolet Silverado 1500 Water Pump

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18 Water Pumps found

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Chevrolet Silverado 1500 Water Pump Part Number: 12685257
$288.51 MSRP: $559.94
You Save: $271.43 (49%)
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Water (W/Manifold); Water Pump Assembly; Pump, Engine Coolant
- Replaces: 12674640, 12671394, 12681258
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Silverado 1500 | Custom, Custom Trail Boss, High Country, LS, LT, LT Trail Boss, LTZ, RST, SSV, WT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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Chevrolet Silverado 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:
- 1999-2013 Chevrolet Silverado 1500 | Base, LS, LT, WT | 6 Cyl 4.3 L GAS
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Chevrolet Silverado 1500 Water Pump Part Number: 12692045
$120.21 MSRP: $233.32
You Save: $113.11 (49%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Kit-Water; Pump Kit, Engine Coolant
- Replaces: 12683012
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Silverado 1500 | Custom, Custom Trail Boss, High Country, LS, LT, LT Trail Boss, LTZ, RST, SSV, WT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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Chevrolet Silverado 1500 Water Pump Part Number: 12685731
$277.09 MSRP: $537.78
You Save: $260.69 (49%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Water (W/Manifold); Water Manifold; Water Pump Assembly; Manifold; Pump, Engine Coolant
- Replaces: 12681259, 12678128, 12671752, 12670050
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2018 Chevrolet Silverado 1500 | Custom, High Country, LS, LT, LTZ, SSV, WT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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Chevrolet Silverado 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:
- 2010-2013 Chevrolet Silverado 1500 | Hybrid, LS, LT, LTZ, WT, XFE | 8 Cyl 4.8 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.2 L FLEX
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Chevrolet Silverado 1500 Water Pump Part Number: 15076931
$139.53 MSRP: $244.78
You Save: $105.25 (43%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump, Engine Coolant; Engine Auxiliary Water Pump; Pump
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2006 Chevrolet Silverado 1500 | Base, Hybrid, LS, LT, SS, WT, Z71 Off-Road | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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Chevrolet Silverado 1500 Water Pump Part Number: 40009321
$81.74 MSRP: $145.95
You Save: $64.21 (44%)
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:
- 2023 Chevrolet Silverado 1500 | Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST | 6 Cyl 3.0 L DIESEL
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Chevrolet Silverado 1500 Water Pump Part Number: 12713806
$72.11 MSRP: $128.76
You Save: $56.65 (44%)
ADD TO CART
Product Specifications
- Other Name: Pump Kit-Water
- Replaced by: 12716504
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2022 Chevrolet Silverado 1500 | Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST | 6 Cyl 3.0 L DIESEL
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Chevrolet Silverado 1500 Water Pump Part Number: 12708893
$207.49 MSRP: $406.24
You Save: $198.75 (49%)
ADD TO CART
Product Specifications
- Other Name: Water Pump Assembly; Pump, Engine Coolant
- Replaced by: 12724892
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2023 Chevrolet Silverado 1500 | Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, PPV, RST, SSV, WT, ZR2 | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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Chevrolet Silverado 1500 Water Pump Part Number: 12718538
$178.09 MSRP: $339.51
You Save: $161.42 (48%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Module Assembly-Water Pump; Pump, Engine Coolant
- Replaced by: 12738952
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2023 Chevrolet Silverado 1500 | Custom, Custom Trail Boss, LT, LT Trail Boss, RST, WT | 4 Cyl 2.7 L GAS
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Chevrolet Silverado 1500 Water Pump Part Number: 13592749
$133.60 MSRP: $239.64
You Save: $106.04 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly-Auxiliary Water; Auxiliary Pump; Pump, Heater Coolant Flow; Pump, Generator Drive; Pump, Engine Coolant
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2018 Chevrolet Silverado 1500 | Custom, High Country, LS, LT, LTZ, SSV, WT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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Chevrolet Silverado 1500 Water Pump Part Number: 12712953
$248.33 MSRP: $481.95
You Save: $233.62 (49%)
ADD TO CART
Product Specifications
- Other Name: Water Pump Assembly
- Replaced by: 12724894
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023 Chevrolet Silverado 1500 | Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, PPV, RST, WT, ZR2 | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
View related parts
Chevrolet Silverado 1500 Water Pump Part Number: 12707676
$254.51 MSRP: $493.96
You Save: $239.45 (49%)
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:
- 2019-2021 Chevrolet Silverado 1500 | Custom, Custom Trail Boss, WT | 6 Cyl 4.3 L GAS
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Chevrolet Silverado 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:
- 1999-2006 Chevrolet Silverado 1500 | Base, Hybrid, LS, LT, SS, WT, Z71 Off-Road | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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Chevrolet Silverado 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:
- 2007-2009 Chevrolet Silverado 1500 | Hybrid, LS, LT, LTZ, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX
View related parts
Chevrolet Silverado 1500 Water Pump Part Number: 15293032
$177.72 MSRP: $318.78
You Save: $141.06 (45%)
Product Specifications
- Other Name: Pump, Engine Coolant; Pump; Pump, Heater
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2013 Chevrolet Silverado 1500 | Hybrid | 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV)
View related parts
Chevrolet Silverado 1500 Water Pump Part Number: 12670246
$86.43 MSRP: $154.33
You Save: $67.90 (44%)
Product Specifications
- Other Name: Pump Kit-Water
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2018 Chevrolet Silverado 1500 | Custom, High Country, LS, LT, LTZ, SSV, WT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
View related parts
Chevrolet Silverado 1500 Water Pump Part Number: 12685259
$354.90 MSRP: $636.60
You Save: $281.70 (45%)
Product Specifications
- Other Name: Pump Assembly-Water (W/Manifold); Pump, Engine Coolant
- Replaced by: 12741059
- Replaces: 12671395
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2018 Chevrolet Silverado 1500 | Custom, High Country, LS, LT, LTZ, SSV, WT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV)

Chevrolet Silverado 1500 Water Pump

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Chevrolet Silverado 1500 Water Pump Parts Questions & Experts Answers

Water Pump
89060527
Q: How to replace the water pump on LH6, LY2, LY5, and LMG engines on Chevrolet Silverado 1500?
A:
When replacing the Water Pump (300) for lh6 ly2 ly5 and lmg engines you must first detach the air cleaner outlet duct and drain the cooling system. Reposition and unclamp the hose locking on the radiator vent inlet line at the coolant air bleed pipe connection point. You should move the clamp on the radiator inlet hose to expose it for hose removal from the Water Pump. Take the radiator inlets to the side before removing the accessory belt. Take off the radiator outlet hose from its Water Pump position and reposition the hose clamp. Adjust the clamp for the radiator surge tank outlet hose and disconnect the hose for service. Reverse the same steps after these areas are serviced. Shift the heater inlet hose clamp plus pull off the heater inlet hose until you can move it aside. Take off the Water Pump bolts (301) to extract the Water Pump (300) with its gaskets (309) and dispose of the gaskets. Before adding the new Water Pump install the device on only clean gasket surfaces. Fit the brand-new Water Pump assembly with the gaskets onto the engine block's surface and fasten the bolts (301) starting from a torque of 15 n.m (11 lb ft) and ending at 30 n.m (22 lb ft). Place back the heater inlet hose together with its clamp before reconnecting the radiator surge tank outlet hose and its clamp. Install the radiator outlet hose with its clamp followed by the accessory Drive Belt. Connect the hoses to their appropriate places according to their right positions, fix the radiator inlet hose to the Water Pump, and clamp it down. Join the radiator vent hose to the coolant air bleed pipe fitting by fitting the clamp on top. After filling the cooling system you need to put the air cleaner outlet duct back in place.