How to check and replace a water pump in an engine for Chevrolet Trailblazer?

The primary water pump is a critical component of the engine and its malfunction can cause overheating and extensive damage. One can observe for coolant leakage from the weep hole or listen for a high-pitched squealing sound indicative of bearing failure to ascertain that the water pump is in good condition. You can check whether there are excessive bearings wearing out by trying to lift up and down or left and right the pulley of a water pump. If the backside impeller fins on the pump are decayed, then you might have to replace it. To remove a water pump, disconnect the battery cable, drain coolant, remove various parts such as air intake duct, radiator shroud and fan clutch assembly. Next take off pulley of water pump along with bolts and clean surfaces which are used for sealing it properly. In fitting this; apply new gasket using RTV sealant while other components including pulley should be available again. Fill cooling system with fresh coolant and bleed it while checking engine for any leaks of coolant. After removing different components and disconnecting heater hoses as well as connector you will go through steps that were discussed earlier earlier performing an installation process that started in step one above before refilling cooling system later on check whether there is any leak in it or not like what was done previously.

Genuine Chevrolet Trailblazer Water Pump

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10 Water Pumps found

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Chevrolet Trailblazer Water Pump Kit
Part Number: 12681417
$263.93 MSRP: $523.66
You Save: $259.73 (50%)
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Product Specifications
- Other Name: Pump Kit, Water; Water Pump
- Replaced by: 19434033
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Pump Kit, Wat
Part Number: 12703898
$176.13 MSRP: $349.50
You Save: $173.37 (50%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Water Pump
- Replaces: 12681184, 12686763, 19256261
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer PUMP ASM-WAT
Part Number: 25204277
$124.19 MSRP: $223.77
You Save: $99.58 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Water Pump Assembly, Water Pump Housing
- Replaces: 55505441, 55515877
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer Pump Assembly, Aux Wat
Part Number: 13546434
$62.41 MSRP: $111.94
You Save: $49.53 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Auxiliary Pump
- Replaced by: 13551861
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023-2024 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer PUMP ASM-HTR COOL
Part Number: 42795010
$80.53 MSRP: $144.45
You Save: $63.92 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023-2024 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer PUMP ASM-HTR COOL
Part Number: 42828347
$89.11 MSRP: $159.85
You Save: $70.74 (45%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2025 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer Engine Coolant Pump
Part Number: 12620226
$144.79 MSRP: $260.88
You Save: $116.09 (45%)
Product Specifications
- Other Name: Pump,Water; Water Pump
- Replaces: 24576952
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer PUMP,WAT (MODULE)
Part Number: 12718625
$164.21 MSRP: $295.88
You Save: $131.67 (45%)
Product Specifications
- Replaces: 12701699, 12707765, 12712268
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2025 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
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Chevrolet Trailblazer PUMP ASM-WAT
Part Number: 25204275
$106.08 MSRP: $166.87
You Save: $60.79 (37%)
Product Specifications
- Replaces: 55505442, 55515876
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer Pump Assembly, Heater Coolant
Part Number: 15249057
Product Specifications
- Other Name: PUMP, Heater
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chevrolet Trailblazer | 4 DOOR EXT | 8 Cyl 5.3L

Chevrolet Trailblazer Water Pump

It is worth explaining that Water Pump in Chevrolet Trailblazer automobile plays an important role in temperate distribution providing fluent circulation of the coolant between the radiator and the engine where the gathered heat produced during the combustion process is absorbed. Almost all today's water pumps are made of aluminum and are belted to the crankshaft, although electric water pumps are getting to be used more frequently in recent times. A standart set of these pumps comprises a shaft with bearings, a belt driven pulley, and an impeller for pumping the coolant. Despite a water pump's failure being rare, the signs include leaking of coolant, loud noises associated with worn bearings, and undue heat in the engine. There are high-performance water pumps especially for high-performance engines, which provide enhancement in coolant flow and are more efficient than the conventional ones in terms of power consumption. Another type is the electric water pumps which has such advantages as incorporation of coolant circulation not depending on the RPM of the engine and post shut down cooling.

Each OEM Chevrolet Trailblazer Water Pump we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Trailblazer Water Pump Parts Questions & Experts Answers

Pump Kit, Wat
12703898
Q: How to check and replace a water pump in an engine for Chevrolet Trailblazer?
A: The primary water pump is a critical component of the engine and its malfunction can cause overheating and extensive damage. One can observe for coolant leakage from the weep hole or listen for a high-pitched squealing sound indicative of bearing failure to ascertain that the water pump is in good condition. You can check whether there are excessive bearings wearing out by trying to lift up and down or left and right the pulley of a water pump. If the backside impeller fins on the pump are decayed, then you might have to replace it. To remove a water pump, disconnect the battery cable, drain coolant, remove various parts such as air intake duct, radiator shroud and Fan Clutch assembly. Next take off pulley of water pump along with bolts and clean surfaces which are used for sealing it properly. In fitting this; apply new gasket using RTV sealant while other components including pulley should be available again. Fill cooling system with fresh coolant and bleed it while checking engine for any leaks of coolant. After removing different components and disconnecting heater hoses as well as connector you will go through steps that were discussed earlier earlier performing an installation process that started in step one above before refilling cooling system later on check whether there is any leak in it or not like what was done previously.

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