Cooling System for 2025 Chevrolet Silverado 2500 HD
1. By-Pass Hose 
2. Cap 
3. Cap 
4. Cap 
5. Cap 
6. Cap 
7. Reservoir 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
Hose 
GM
GM Description: # GM OEM Hose 85056536
The Genuine GM OEM Hose (MPN: 85056536) is a factory-original coolant or heater hose designed for heavy-duty performance in 6.6L gas-powered Silverado and Sierra trucks. This authentic General Motors replacement hose ensures proper ...
MSRP $66.52
$45.46
MSRP $66.52
$45.46
N/A
Radiator Drain Petcock GM
GM Description: # SEO-Optimized Product Description
The GM OEM Radiator Drain Petcock (MPN: 22790134) is the genuine factory replacement valve that controls coolant drainage from your vehicle's radiator system. This authentic General Motors part is engineered to factory ...
MSRP $24.48
$17.51
MSRP $24.48
$17.51
N/A
Engine Block Heater GM
GM Description: The Genuine GM OEM Engine Block Heater (MPN: 12586687) is an essential engine warming component designed to improve cold-start performance and engine longevity across multiple GM truck and car models. This authentic General Motors part fits Chevrolet Silve ...
MSRP $93.55
$59.09
MSRP $93.55
$59.09
1
Engine Radiator GM
GM Description: Genuine GM OEM Engine Radiator MPN 84889155 is the factory-original cooling system component designed for select Silverado and Sierra heavy-duty trucks with 6.6L gas engines. This authentic General Motors radiator maintains optimal engine temperature and p ...
MSRP $566.67
$370.60
MSRP $566.67
$370.60
2
Upper Hose GM
GM Description: # Product Description
**Paragraph:**
The GM OEM Upper Hose (MPN: 85119166) is an essential cooling system component designed for Heavy-Duty Silverado and Sierra 2500 HD and 3500 HD trucks. This genuine General Motors replacement hose maintains proper cool ...
MSRP $95.34
$63.38
MSRP $95.34
$63.38
3
Lower Hose GM
GM Description: Genuine GM OEM Lower Hose (MPN: 85119159) is engineered for heavy-duty cooling system performance in Silverado and Sierra 2500 HD and 3500 HD trucks. This original equipment manufacturer radiator hose maintains proper coolant flow and thermal regulation in ...
MSRP $38.11
$26.05
MSRP $38.11
$26.05
4
20 P.S.I. Radiator Surge Tank Cap GM
GM Description: # 20 P.S.I. Radiator Surge Tank Cap - GM OEM Part
The Genuine GM OEM 20 P.S.I. Radiator Surge Tank Cap (MPN: 13545896) is a factory-original cooling system component designed to maintain proper coolant pressure and prevent overflow in select GM vehicles. ...
MSRP $20.14
$12.00
MSRP $20.14
$12.00
5
Radiator Surge Tank GM
GM Description: Genuine GM OEM Radiator Surge Tank (MPN: 84630072) engineered for 6.6L gas engines in Silverado and Sierra 2500 HD and 3500 HD models. This essential coolant expansion reservoir maintains proper engine operating temperatures by managing coolant overflow an ...
MSRP $71.88
$49.13
MSRP $71.88
$49.13
6
187 Degrees Engine Coolant Thermostat with Seal GM
GM Description: The GM OEM 187 Degrees Engine Coolant Thermostat with Seal (MPN: 89018168) is an authentic General Motors replacement part designed to regulate coolant circulation and maintain your engine's ideal operating temperature. This genuine thermostat housing comp ...
MSRP $74.05
$42.19
MSRP $74.05
$42.19
7
Water Inlet Seal GM
GM Description: # Product Description
**Paragraph:**
The GM OEM Water Inlet Seal (MPN: 12587397) is a factory-engineered cooling system component designed to prevent coolant leaks at critical connection points in your vehicle's engine. This genuine General Motors part ma ...
MSRP $11.12
$6.63
MSRP $11.12
$6.63
8
Engine Water Pump Inlet Tube GM
GM Description: The GM OEM Engine Water Pump Inlet Tube (MPN: 12587395) is a genuine General Motors component engineered to deliver coolant efficiently from your radiator to the water pump on select GM vehicles. This authentic factory part ensures optimal cooling system p ...
MSRP $18.38
$10.95
MSRP $18.38
$10.95
9
Water Pump GM
GM Notes: Includes Thermostat Housing.
Description: Genuine GM OEM Water Pump (MPN: 12735409) engineered for 6.6L gas engines in select Savana and Express van models, delivering reliable cooling system performance. This original equipment manufacturer part maintains proper engine temperature regulation and ...
MSRP $567.12
$310.50
MSRP $567.12
$310.50
10
Water Pump Gasket GM
GM Description: The GM OEM Water Pump Gasket (MPN: 12682391) is an essential engine sealing component engineered to prevent coolant leaks at the water pump assembly on select General Motors trucks and vans. This genuine GM part ensures a reliable, long-lasting seal across ...
MSRP $0.88
$0.52
MSRP $0.88
$0.52
11
Engine Cooling Fan Blade GM
GM Description: Upgrade your truck's cooling system with this Genuine GM OEM Engine Cooling Fan Blade (MPN: 25919018), engineered for superior heat dissipation on heavy-duty trucks. This authentic General Motors part is precision-designed for Silverado and Sierra 2500 HD ...
MSRP $199.23
$110.37
MSRP $199.23
$110.37
12
Fan Blade Clutch GM
GM Description: Upgrade your heavy-duty truck's cooling system with the Genuine GM OEM Fan Blade Clutch (MPN: 84382012), engineered for 6.6L gas engines in Silverado and Sierra 2500 HD and 3500 HD models. This authentic General Motors replacement part resolves issues with ...
MSRP $349.78
$191.50
MSRP $349.78
$191.50
13
Fan Shroud GM
GM Description: Genuine GM OEM Fan Shroud (MPN: 86781972) engineered for 6.6L gas engines in Silverado and Sierra 2500 HD and 3500 HD trucks. This front lower fan shroud directs airflow through the radiator to optimize engine cooling performance and fuel efficiency. Direc ...
MSRP $86.75
$57.67
MSRP $86.75
$57.67
13
Fan Shroud GM
GM Description: Genuine GM OEM Fan Shroud (MPN: 85112067) engineered for 6.6L gas engines in select Silverado and Sierra heavy-duty models. This factory-original fan shroud directs engine cooling airflow efficiently, protecting radiator components and optimizing thermal p ...
MSRP $198.93
$130.70
MSRP $198.93
$130.70
13
Shroud GM
GM Description: Genuine GM OEM Shroud (MPN: 84943753) is engineered for 6.6L gas engines in Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD pickup trucks, providing optimal cooling system performance. This upper front shroud directs airflow through the radiator to ...
MSRP $75.37
$51.52
MSRP $75.37
$51.52