Radiators, Coolers & Related Components for 2025 GMC Sierra 2500 HD
No.
Part # / Description / Price
Price
1
Engine Auxiliary Radiator 
GM
GM Description: 6.6L diesel, fuel cooling. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Lightweight; the radiators have a positive heat transfer to weight ratio
Corrosion-resistant aluminum designed core helps optimize the radiators long lasting service life
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $316.67
$212.80
MSRP $316.67
$212.80
1
Engine Radiator GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Primary. 6.6L diesel, engine cooling.
MSRP $879.94
$591.33
MSRP $879.94
$591.33
2
Passenger Side Radiator Upper Bracket GM
GM Positions: Right
Description: 6.6L gas. 6.6L diesel, engine cooling. Helps align and secure your vehicle's radiator mount
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
Collision parts are designed to help promote proper and safe repair
MSRP $20.58
$13.89
MSRP $20.58
$13.89
2
Driver Side Radiator Upper Bracket GM
GM Positions: Left
Description: 6.6L gas. 6.6L diesel, engine cooling. Helps align and secure your vehicle's radiator mount
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
Collision parts are designed to help promote proper and safe repair
MSRP $20.58
$13.89
MSRP $20.58
$13.89
2
Passenger Side Radiator Lower Bracket GM
GM Positions: Right
Description: Helps align and secure your vehicle's radiator mount
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
Collision parts are designed to help promote proper and safe repair
MSRP $228.25
$154.00
MSRP $228.25
$154.00
3
Radiator Upper Insulator GM
GM Positions: Left
Description: 6.6L gas. 6.6L diesel, engine cooling, upper. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.01
$6.17
MSRP $9.01
$6.17
4
Radiator Lower Mount GM
GM Positions: Left
Notes: PARTS: Part included with radiator.
Description: 6.6L diesel, 2017-19. 6.6L diesel, engine cooling, center. 6.6L turbo diesel. 6.6L diesel 2015-16. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.01
$6.17
MSRP $9.01
$6.17
5
Radiator Insulator GM
GM Positions: Left
Notes: PARTS: Part included with radiator.
Description: 6.6L diesel, engine cooling, lower.
MSRP $16.56
$11.33
MSRP $16.56
$11.33
6
Radiator Drain Petcock GM
GM Notes: PARTS: Part included with radiator.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $24.48
$16.45
MSRP $24.48
$16.45
9
Radiator Inlet Hose Clamp GM
GM Description: 6.6L diesel, engine cooling, rear. Easy to install or remove
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $34.42
$23.13
MSRP $34.42
$23.13
11
Radiator Hose Clamp GM
GM Notes: PARTS: Part included with lower hose.
Description: 2.8L. Easy to install or remove
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.70
$5.95
MSRP $8.70
$5.95
12
Multi-Purpose Clamp GM
GM Notes: PARTS: Part included with lower hose.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $6.64
$4.31
MSRP $6.64
$4.31
13
Expansion Tank GM
GM Description: Silverado, Sierra 2500 HD. 6.6L diesel, engine cooling. Silverado, Sierra 3500 HD.
MSRP $98.07
$65.90
MSRP $98.07
$65.90
15
MSRP $24.80
$16.67
16
Multi-Purpose Clamp GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $12.52
$7.14
MSRP $12.52
$7.14
16
Multi-Purpose Clamp GM
GM Description: 6.6L diesel, engine cooling, large. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.14
$4.64
MSRP $7.14
$4.64
18
Engine Coolant Air Bleed Pipe GM
GM Description: 6.6L diesel, engine cooling. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $26.42
$16.87
MSRP $26.42
$16.87
20
MSRP $149.95
$100.77
20
Outlet Hose GM
GM Positions: Right
Description: 6.6L diesel, fuel cooling. Silverado, Sierra 2500 HD. Outlet. Silverado, Sierra 3500 HD. Auxiliary Radiator. Emission Reduction Fluid Injector Cooling.
MSRP $197.46
$132.69
MSRP $197.46
$132.69
20
Inlet Hose GM
GM Positions: Left
Description: Silverado, Sierra 2500 HD. Inlet. Silverado, Sierra 3500 HD. Auxiliary Radiator. Emission Reduction Fluid Injector Cooling. 6.6L diesel, fuel cooling, to 09/19/2024.
MSRP $133.53
$89.72
MSRP $133.53
$89.72
20
Radiator Coolant Hose GM
GM Positions: Lower
Description: Primary Radiator. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, engine cooling.
MSRP $175.56
$117.97
MSRP $175.56
$117.97
20
Radiator Inlet Hose GM
GM Positions: Upper
Description: Manufactured to GM OE specification for fit, form, and function
MSRP $37.85
$25.44
MSRP $37.85
$25.44
21
Radiator Outlet Hose Clamp GM
GM Notes: PARTS: Part included with outlet hose.
Description: Helps prevent leaks
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.50
$5.14
MSRP $7.50
$5.14
22
MSRP $29.30
$19.69