Cooling System for 2025 Chevrolet Silverado 2500 HD
1. ACDelcoâ„¢ Auxiliary Radiator 
2. Reservoir Cap 
3. Cap 
4. Cap 
5. Cap 
6. Cap 
7. Cap 
8. Reservoir Cap 
9. Reservoir Cap 
10. Reservoir Cap 
11. Cap 
12. Cap 
13. Cap 
14. Cap 
15. Cap 
16. Cap 
17. Cap 
18. Cap 
19. Cap 
20. Cap 
21. Cap 
22. Cap 
23. Cap 
24. Cap 
25. Cap 
26. Cap 
27. Cap 
28. Cap 
29. Reservoir Cap 
30. Cap 
31. Cap 
32. Cap 
33. Cap 
34. Reservoir Cap 
35. Cap 
36. Reservoir Cap 
37. Reservoir Cap 
38. Reservoir Cap 
39. Reservoir Cap 
40. Reservoir Cap 
41. Cap 
42. Reservoir Cap 
43. Cap 
44. Cap 
45. Reservoir Cap 
46. Cap 
47. Cap 
48. Cap 
49. Reservoir Cap 
50. Reservoir Cap No.
Part # / Description / Price
Price
N/A
Inlet Hose 
GM
GM 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
$88.92
MSRP $133.53
$88.92
N/A
Outlet Hose GM
GM 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
N/A
$200.52
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 $316.67
$208.05
MSRP $316.67
$208.05
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 $24.48
$17.63
MSRP $24.48
$17.63
N/A
By-Pass Pipe GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $80.00
$45.60
MSRP $80.00
$45.60
1
Engine Radiator GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Primary. 6.6L diesel, engine cooling.
MSRP $879.94
$575.49
MSRP $879.94
$575.49
2
Radiator Inlet Hose GM
GM Description: Manufactured to GM OE specification for fit, form, and function
MSRP $37.85
$25.89
MSRP $37.85
$25.89
3
Radiator Coolant Hose GM
GM 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
5
Expansion Tank GM
GM Description: Silverado, Sierra 2500 HD. 6.6L diesel, engine cooling. Silverado, Sierra 3500 HD.
MSRP $98.07
$65.31
MSRP $98.07
$65.31
6
Engine Coolant 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. 180 Degrees F.
MSRP $17.12
$10.27
MSRP $17.12
$10.27
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 $16.72
$10.03
MSRP $16.72
$10.03
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 $14.00
$8.40
MSRP $14.00
$8.40
8
Thermostat Housing GM
GM Description: 6.6L diesel. Silverado, sierra. 6.6l. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $209.30
$114.59
MSRP $209.30
$114.59
9
Water Outlet GM
GM Description: Manufactured to GM OE specification for fit, form, and function
MSRP $91.26
$52.02
MSRP $91.26
$52.02
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 $296.72
$162.47
MSRP $296.72
$162.47
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 $0.88
$0.53
MSRP $0.88
$0.53
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 $8.20
$4.92
MSRP $8.20
$4.92
12
Acdelcoâ„¢ Fan Blade GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
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 $283.61
$155.27
MSRP $283.61
$155.27
13
Engine Cooling Fan Clutch GM
GM Description: Silverado, Sierra 2500 HD. 4wd. Silverado, Sierra 3500 HD. 4wd. 6.6L diesel, 4wd.
MSRP $667.41
$363.74
MSRP $667.41
$363.74
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 $69.92
$47.83
MSRP $69.92
$47.83
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 $62.25
$42.75
MSRP $62.25
$42.75
14
Fan Shroud GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Rear. Silverado, Sierra 3500 HD.
MSRP $222.55
$146.22
MSRP $222.55
$146.22