Radiator & Components for 2025 GMC Sierra 2500 HD
No.
Part # / Description / Price
Price
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 $20.09
$15.00
MSRP $20.09
$15.00
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 $20.09
$15.00
MSRP $20.09
$15.00
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 $8.79
$6.76
MSRP $8.79
$6.76
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 $8.79
$6.76
MSRP $8.79
$6.76
5
Radiator Insulator GM
GM Positions: Left
Notes: PARTS: Part included with radiator.
Description: 6.6L diesel, engine cooling, lower.
MSRP $16.16
$12.42
MSRP $16.16
$12.42
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 $23.88
$17.77
MSRP $23.88
$17.77
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
$23.73
MSRP $34.42
$23.73
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
$6.68
MSRP $8.70
$6.68
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
13
Expansion Tank GM
GM Description: 6.6L diesel, engine cooling. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $98.07
$66.49
MSRP $98.07
$66.49
15
MSRP $45.74
$31.53
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 $12.22
$7.82
MSRP $12.22
$7.82
17
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 $6.96
$5.12
MSRP $6.96
$5.12
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 $32.39
$22.89
MSRP $32.39
$22.89
20
MSRP $133.00
$90.17
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 $7.32
$5.68
MSRP $7.32
$5.68
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 $340.84
$231.09
MSRP $340.84
$231.09
1
Acdelcoâ„¢ Auxiliary Radiator GM
GM Description: 6.6L diesel, fuel cooling. Auxiliary. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
2
Outlet Hose GM
GM Description: 6.6L diesel, fuel cooling. Silverado, Sierra 2500 HD. Outlet. Silverado, Sierra 3500 HD.
MSRP $192.64
$130.61
MSRP $192.64
$130.61
3
Inlet Hose GM
GM Description: Silverado, Sierra 2500 HD. Inlet. Silverado, Sierra 3500 HD. 6.6L diesel, fuel cooling, to 09/19/2024.
MSRP $121.41
$82.31
MSRP $121.41
$82.31
3
MSRP $130.28
$88.32
4
MSRP $29.21
$20.65
5
Reservoir Cap GM
GM Description: 3.0L diesel. 6.6L diesel, fuel cooling. 1.8L, generator cooling. 2020-22. 2023-25. 6.2L supercharger. HVAC System. Location-Reservoir. Charge Air Cooling.
MSRP $9.88
$6.37
MSRP $9.88
$6.37
6
MSRP $88.60
$57.05
7
MSRP $225.69
$145.40
8
MSRP $108.23
$69.71
9
MSRP $199.40
$112.66
No.
Part # / Description / Price
Price
N/A
By-Pass Hose GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $78.04
$44.83
MSRP $78.04
$44.83
N/A
Radiator Drain Petcock GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $23.88
$17.77
MSRP $23.88
$17.77
N/A
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 $340.84
$231.09
MSRP $340.84
$231.09
N/A
Radiator Shutter Assembly GM
GM Description: With active shutter. Sierra 2500 HD. Upper. Sierra 3500 HD.
$196.44
$196.44
N/A
Outlet Hose GM
GM Description: 6.6L diesel, fuel cooling. Silverado, Sierra 2500 HD. Outlet. Silverado, Sierra 3500 HD.
MSRP $192.64
$130.61
MSRP $192.64
$130.61
N/A
Inlet Hose GM
GM Description: Silverado, Sierra 2500 HD. Inlet. Silverado, Sierra 3500 HD. 6.6L diesel, fuel cooling, to 09/19/2024.
MSRP $121.41
$82.31
MSRP $121.41
$82.31
1
MSRP $780.43
$529.13
2
Radiator Inlet Hose GM
GM Description: Manufactured to GM OE specification for fit, form, and function
MSRP $82.01
$56.53
MSRP $82.01
$56.53
3
MSRP $175.56
$119.02
5
Expansion Tank GM
GM Description: 6.6L diesel, engine cooling. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $98.07
$66.49
MSRP $98.07
$66.49
6
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
$24.26
MSRP $42.22
$24.26
6
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
$47.42
MSRP $82.56
$47.42
7
Engine Coolant Thermostat O-Ring GM
GM Description: 6.6L diesel, 185 deg therm. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, 180 deg therm. Seals your vehicle's thermostat housing
Helps prevent coolant from leaking from the engine
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $13.66
$8.74
MSRP $13.66
$8.74
8
Thermostat Housing GM
GM Description: 6.6L diesel. Silverado, sierra. 6.6l. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $209.30
$118.25
MSRP $209.30
$118.25
9
Water Outlet GM
GM Description: Manufactured to GM OE specification for fit, form, and function
MSRP $89.04
$51.15
MSRP $89.04
$51.15
10
Engine Water Pump GM
GM Notes: Includes Thermostat Housing.
Description: Silverado, sierra. 6.6l. 6.6L diesel. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Thoroughly tested for reliable, leak-resistant performance
Uniform wall sections and smooth coolant-flow cavities for efficient operation
Coated seals with a stainless steel spring for durability
MSRP $289.48
$163.57
MSRP $289.48
$163.57
11
Water Pump Cover Seal GM
GM 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
$5.16
MSRP $8.00
$5.16
11
Water Pump Outlet Pipe Gasket GM
GM 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
$5.91
MSRP $9.16
$5.91
12
Fan Blade GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $276.69
$156.32
MSRP $276.69
$156.32
13
Clutch GM
GM Description: 6.6L diesel, 4wd. Silverado, Sierra 2500 HD. 4wd. Silverado, Sierra 3500 HD. 4wd.
MSRP $591.94
$334.45
MSRP $591.94
$334.45
14
Engine Coolant Fan Lower Shroud GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Front. Lower. Silverado, Sierra 3500 HD. Helps regulate engine temperature
Houses cooling fans
Helps optimize airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $68.22
$47.04
MSRP $68.22
$47.04
14
Engine Cooling Fan Upper Shroud GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Front. Upper. Silverado, Sierra 3500 HD. Helps regulate engine temperature
Houses cooling fans
Helps optimize airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $60.74
$42.04
MSRP $60.74
$42.04
14
Fan Shroud GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Rear. Silverado, Sierra 3500 HD.
MSRP $217.12
$147.21
MSRP $217.12
$147.21
No.
Part # / Description / Price
Price
5
Reservoir Cap GM
GM Description: 3.0L diesel. 6.6L diesel, fuel cooling. 1.8L, generator cooling. 2020-22. 2023-25. 6.2L supercharger. HVAC System. Location-Reservoir. Charge Air Cooling.
MSRP $9.88
$6.37
MSRP $9.88
$6.37
6
MSRP $88.60
$57.05
No.
Part # / Description / Price
Price
12
M4.2x1.41x25 Multi-Purpose Bolt GM
GM Description: Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
No.
Part # / Description / Price
Price
17
M4.2x1.41x25 Multi-Purpose Bolt GM
GM Description: Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
No.
Part # / Description / Price
Price
13
M4.2x1.41x25 Multi-Purpose Bolt GM
GM Description: Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
No.
Part # / Description / Price
Price
13
M4.2x1.41x25 Multi-Purpose Bolt GM
GM Description: Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
No.
Part # / Description / Price
Price
13
M4.2x1.41x25 Multi-Purpose Bolt GM
GM Description: Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Related Parts
Part # / Description / Price
Price
M4.2x1.41x25 Multi-Purpose Bolt GM
GM Description: Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors