Water Pump & Related Components for 2025 GMC Sierra 2500 HD
No.
Part # / Description / Price
Price
1
Acdelco™ Engine Water Pump 
GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Silverado, sierra. 6.6l.
2
Water Pump Cover Seal GM
GM Notes: PARTS: Part included with water pump.
Description: Silverado, sierra. 6.6l. 6.6L diesel. Silverado, Sierra 2500 HD. O-ring. Silverado, Sierra 3500 HD. Made from some heat and chemical-resistant materials
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.00
$4.94
MSRP $8.00
$4.94
3
8x1.25x59.05 Front Compartment Side Rail Bolt GM
GM Description: 6.6L diesel, main battery. Auxiliary. Storage tray, 2nd design. Primary. 4.2L twin-turbo. Fuel tank & pump, 8x59mm. Main battery, 2014-2017. 2009 2nd design, 2010. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.53
$6.70
MSRP $9.53
$6.70
5
Stud-Double End GM
GM Description: 6.6L diesel. 6.6L. to block. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.04
$5.58
MSRP $9.04
$5.58
7
Thermostat Housing GM
GM Description: 6.6L diesel. Silverado, sierra. 6.6l. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $209.30
$121.86
MSRP $209.30
$121.86
7
Acdelco™ Thermostat Housing GM
GM Description: 6.6L diesel. Silverado, sierra. 6.6l. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
8
Engine Coolant Thermostat Housing Gasket GM
GM Description: 6.6L diesel. Helps seal the gap between the exterior of your vehicle's thermostat housing and the exterior of the engine to help prevent leakage
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.16
$5.65
MSRP $9.16
$5.65
9
Engine Coolant Thermostat Housing Bolt GM
GM Description: 6.6L diesel. Threads Into Side of Bearing Cap. 8 x 1.25 x 25mm. Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $10.25
$7.21
MSRP $10.25
$7.21
10
Stud-Double End GM
GM Description: 6.6L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.93
$5.58
MSRP $7.93
$5.58
11
Multi-Purpose Nut GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $2.60
$1.83
MSRP $2.60
$1.83
12
By-Pass Hose GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $78.04
$46.61
MSRP $78.04
$46.61
13
By-Pass Pipe Seal GM
GM Notes: PARTS: Part included with by-pass pipe.
Description: 6.6L diesel.
MSRP $9.04
$5.58
MSRP $9.04
$5.58
14
MSRP $8.00
$4.94
15
Thermostat GM
GM Description: 6.6L diesel, 180 deg. Silverado, Sierra 2500 HD. 180 degrees. Silverado, Sierra 3500 HD. 180 degrees. Silverado, sierra. 6.6l. 180 degrees.
MSRP $82.56
$48.68
MSRP $82.56
$48.68
15
Acdelco™ Thermostat GM
GM Description: 6.6L diesel, 180 deg. Silverado, Sierra 2500 HD. 180 degrees. Silverado, Sierra 3500 HD. 180 degrees. 180 Degrees F. Optional. Silverado, sierra. 6.6l. 180 degrees.
16
Acdelco™ Thermostat GM
GM Description: 6.6L diesel, 185 deg. Silverado, Sierra 2500 HD. 185 degrees. Silverado, Sierra 3500 HD. 185 degrees. 185 Degrees F. Optional. Silverado, sierra. 6.6l. 185 degrees.
16
Engine Coolant Thermostat GM
GM Description: Silverado, sierra. 6.6l. 185 degrees. 6.6L diesel, 185 deg. Silverado, Sierra 2500 HD. 185 degrees. Silverado, Sierra 3500 HD. 185 degrees. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature
MSRP $42.22
$25.22
MSRP $42.22
$25.22
18
Engine Coolant Thermostat O-Ring GM
GM Description: GM Genuine Parts Engine Coolant Thermostat Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help prevent coolant leaks from your vehicle's engine. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.
MSRP $13.66
$8.43
MSRP $13.66
$8.43
19
Engine Coolant Temperature Sensor GM
GM Description: GM Original Equipment Engine Coolant Temperature Sensors monitor engine temperature, and are GM-recommended replacements for your vehicle's original components. The engine temperature signal is used by the engine control module to adjust the air/fuel mixture and ignition timing. These original equipment engine coolant temperature sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
MSRP $31.75
$19.37
MSRP $31.75
$19.37
20
Water Outlet GM
GM Description: Manufactured to GM OE specification for fit, form, and function
MSRP $89.04
$52.51
MSRP $89.04
$52.51
22
Water Pump Outlet Pipe Gasket GM
GM Notes: PARTS: Part included with outlet pipe.
Description: 2017-19. 6.6L diesel. Silverado, Sierra 2500 HD. Gasket. Silverado, Sierra 3500 HD. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $9.16
$5.65
MSRP $9.16
$5.65
23
Water Pump O-Ring GM
GM Description: Pipe to Oil Cooler. 2017-19. 6.6L diesel. Made from heat and chemical-resistant materials
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $44.09
$26.35
MSRP $44.09
$26.35
23
Acdelco™ Engine Coolant Pipe O-Ring GM
GM Description: Pipe to Oil Cooler. Outlet pipe,seal. 2017-19 6.6L diesel. 6.6L turbo diesel.