Radiator & Components for 2025 Chevrolet Silverado 2500 HD
1. Radiator 
2. Auxiliary Radiator 
3. Block Heater 
4. Reservoir Cap 
5. Cap 
6. Reservoir Cap 
7. Reservoir Cap 
8. Cap 
9. Reservoir Cap 
10. Reservoir Cap 
11. Reservoir Cap 
12. Reservoir Cap 
13. Reservoir Cap 
14. Reservoir Cap 
15. Reservoir Cap 
16. Cap 
17. Reservoir Cap 
18. Reservoir Cap 
19. Reservoir Cap 
20. Reservoir Cap 
21. Reservoir Cap 
22. Reservoir Cap 
23. Cap 
24. Reservoir Cap 
25. Shutter Bolt 
26. Reservoir Cap 
27. Shutter Bolt 
28. Reservoir Cap 
29. Reservoir Cap 
30. Reservoir Cap 
31. Reservoir Cap 
32. Reservoir Cap 
33. Reservoir Cap 
34. Reservoir Cap 
35. Reservoir Cap 
36. Reservoir Cap 
37. Reservoir Cap 
38. Reservoir Cap 
39. Reservoir Cap 
40. Reservoir Cap 
41. Reservoir Cap 
42. Reservoir Cap 
43. Reservoir Cap 
44. Reservoir Cap 
45. Reservoir Cap 
46. Reservoir Cap 
47. Reservoir Cap 
48. Reservoir Cap 
49. Reservoir Cap 
50. Reservoir Cap 
51. Reservoir Cap 
52. Reservoir Cap 
53. Reservoir Cap 
54. Reservoir Cap 
55. Reservoir Cap 
56. Reservoir Cap 
57. Radiator Support Air Deflector Bolt 
58. Radiator Support Air Deflector Bolt 59. Lower Baffle Bolt 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
$208.05
MSRP $316.67
$208.05
1
Engine Radiator GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Primary. 6.6L diesel, engine cooling.
MSRP $879.94
$583.41
MSRP $879.94
$583.41
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
$13.52
MSRP $20.58
$13.52
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
$13.52
MSRP $20.58
$13.52
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
$5.90
MSRP $9.01
$5.90
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
$5.90
MSRP $9.01
$5.90
5
Radiator Insulator GM
GM Positions: Left
Notes: PARTS: Part included with radiator.
Description: 6.6L diesel, engine cooling, lower.
MSRP $16.56
$10.83
MSRP $16.56
$10.83
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
$16.01
MSRP $24.48
$16.01
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
$22.54
MSRP $34.42
$22.54
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
$5.69
MSRP $8.70
$5.69
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
$4.12
MSRP $6.64
$4.12
13
Expansion Tank GM
GM Description: Silverado, Sierra 2500 HD. 6.6L diesel, engine cooling. Silverado, Sierra 3500 HD.
MSRP $98.07
$64.28
MSRP $98.07
$64.28
15
MSRP $24.80
$16.22
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
$6.82
MSRP $12.52
$6.82
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
$4.44
MSRP $7.14
$4.44
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
$16.42
MSRP $26.42
$16.42
20
MSRP $149.95
$98.29
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
$129.72
MSRP $197.46
$129.72
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
$87.52
MSRP $133.53
$87.52
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
$115.34
MSRP $175.56
$115.34
20
Radiator Inlet Hose GM
GM Positions: Upper
Description: Manufactured to GM OE specification for fit, form, and function
MSRP $37.85
$24.79
MSRP $37.85
$24.79
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
$4.92
MSRP $7.50
$4.92
22
Radiator Surge Tank Inlet Hose GM
GM Description: 6.6L diesel engine cooling. Inlet hose.
MSRP $29.30
$19.16
MSRP $29.30
$19.16
22
MSRP $90.81
$56.54