Cooling System for 2021 Chevrolet Silverado 1500
1. Block Heater 
2. Inlet Tube 
3. Cap 
4. Cap 
5. Cap 
6. Cap 
7. Cap 
8. Cap 
9. Reservoir Cap 
10. Reservoir Cap 
11. Reservoir Cap 
12. Reservoir 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. Cap 
30. Cap 
31. Reservoir Cap 
32. Cap 
33. Cap 
34. Cap 
35. Cap 
36. Reservoir Cap 
37. Cap 
38. Reservoir Cap 
39. Reservoir Cap 
40. Reservoir Cap 
41. Reservoir Cap 
42. Reservoir Cap 
43. Cap 
44. Cap 
45. Reservoir Cap 
46. Cap 
47. Cap 
48. Cap 
49. Reservoir Cap 
50. Reservoir Cap 
51. Reservoir Cap No.
Part # / Description / Price
Price
N/A
Engine Block Heater 
GM
GM Description: GM Engine Block Heater (Part Number: 12586687) is an engine coolant/engine block heater designed to warm engine coolant and oil for easier cold starts in specific gasoline and diesel engines. Function: Heats engine coolant/engine block to improve cold-star ...
MSRP $93.55
$58.39
MSRP $93.55
$58.39
N/A
HVAC Heater Pipe GM
GM Description: 2.7L turbo. CT4. Heater outlet. Helps circulate coolant
Helps prevent engine overheating and damage
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $86.59
$50.60
MSRP $86.59
$50.60
N/A
Shutter GM
GM Description: With active shutter, single shutter, redesign, wt, custom, custom tb.
$205.02
$205.02
N/A
$114.08
N/A
Inlet Pipe GM
GM Description: 2.7L turbo. Silverado, sierra. Thermostat housing inlet. CT4. Flow control valve inlet.
MSRP $32.69
$25.50
MSRP $32.69
$25.50
N/A
Radiator Drain Petcock GM
GM Description: GM Genuine Parts Radiator Drain Petcock (Part Number: 22790134) is an OEM radiator drain valve designed to allow controlled coolant draining for maintenance and service. Type: Radiator drain petcock / drain plugFunction: Enables controlled drainage of cool ...
MSRP $24.48
$19.09
MSRP $24.48
$19.09
1
Radiator GM
GM Description: GM Genuine Parts Radiator (Part Number: 86567346) is an engine radiator assembly (RADIATOR ASM-ENG) that provides engine coolant heat exchange to help maintain proper operating temperature. Type: Engine radiator assemblyFunction: Cools engine coolant by tr ...
MSRP $411.59
$273.61
MSRP $411.59
$273.61
2
MSRP $85.66
$56.27
3
Hose GM
GM Description: GM Genuine Parts Radiator Outlet Hose (Part Number: 84545554) is a radiator lower outlet hose designed to circulate engine coolant between the engine and radiator while resisting high temperatures. Type: Radiator outlet (lower) hoseFunction: Carries coolan ...
MSRP $73.70
$51.68
MSRP $73.70
$51.68
4
Engine Coolant Bypass Hose GM
GM Description: Hose Only. Pipe to Water Pump. Silverado, sierra. Thermostat bypass lower. Colorado. CT4. At water pump inlet. Canyon.
MSRP $31.12
$20.22
MSRP $31.12
$20.22
4
By-Pass Hose GM
GM Description: Silverado, sierra. Water inlet elbow. To 7/29/2022. Colorado. To 07/28/22. Canyon. CT4. At water inlet housing. Engine Cooling. Water Pump to Inlet Pipe.
MSRP $32.87
$25.63
MSRP $32.87
$25.63
4
Thermostat Bypass Hose GM
GM Description: To Thermostat. CT4. At flow control valve. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $41.04
$23.98
MSRP $41.04
$23.98
4
By-Pass Hose GM
GM Description: Engine Cooling. Exhaust Manifold Outlet Pipe to Thermostat Housing.
MSRP $13.60
$9.51
MSRP $13.60
$9.51
5
Inlet Tube GM
GM Description: GM Genuine Parts Inlet Tube (Part Number: 85584375) is a radiator surge-tank inlet hose used in cooling systems for models such as Silverado and Sierra. Function: Routes coolant between radiator surge tank and engine cooling system to maintain proper coola ...
MSRP $61.73
$43.29
MSRP $61.73
$43.29
8
Radiator Surge Tank GM
GM Description: GM Genuine Parts Radiator Surge Tank (Part Number: 84632822) is a coolant expansion/reservoir tank that stores and returns heated coolant as pressures change within the cooling system. Designed and tested to OEM standards. Function: Stores excess heated co ...
MSRP $48.19
$44.85
MSRP $48.19
$44.85
9
Engine Coolant Air Bleed Hose GM
GM Description: 2.7L turbo. Silverado, sierra. Helps keep engine operating at optimal temperatures
Releases trapped air from the cooling system
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $45.67
$32.02
MSRP $45.67
$32.02
10
Control Valve GM
GM Description: Silverado, sierra. 2.7L turbo. Control Valve. Incl.Gasket. Colorado. Canyon.
MSRP $350.11
$217.91
MSRP $350.11
$217.91
11
Control Valve Seal GM
GM Notes: Included With Coolant Control Valve.
Description: GM Genuine Parts Control Valve Seal (Part Number: 12666026, SKU: 12666026) is a seal used in engine cooling or HVAC control valve assemblies. Function: Seals coolant or flow control valve interfaces to prevent leaksApplication: Noted for 2.7L turbo and Sil ...
MSRP $2.19
$1.85
MSRP $2.19
$1.85
12
Water Inlet GM
GM Description: From 07/29/2022. Silverado, sierra. From 11/1/2023. 2.7L turbo, from 11/01/2023. 2.7L turbo, fm 07/29/2022. 2.7L turbo, 2nd design. CT4.
MSRP $91.11
$58.80
MSRP $91.11
$58.80
13
Water Pump Inlet Gasket GM
GM Description: ACDelco Water Pump Inlet Gasket (Part Number: 12665975) is a gasket used at the water pump inlet to seal coolant passages and help prevent leaks. Category: GM OE Water PumpsService Type: Heating & CoolingFunction: Provides a coolant-tight seal between ...
MSRP $1.88
$1.40
MSRP $1.88
$1.40
14
Exhaust Manifold Outlet Pipe GM
GM Description: GM Genuine Parts Exhaust Manifold Outlet Pipe (Part Number: 12701678) is the exhaust manifold outlet pipe assembly that routes exhaust gases from the turbocharged manifold to downstream exhaust components. Application: Designed for 2.7L turbo Silverado/Sie ...
MSRP $182.93
$120.11
MSRP $182.93
$120.11
15
Exhaust Manifold Outlet Pipe Gasket GM
GM Description: GM Genuine Parts Exhaust Manifold Outlet Pipe Gasket (Part Number: 12665976) is an original-equipment gasket for sealing the exhaust manifold outlet pipe on select turbocharged engines. Application: Seals exhaust manifold outlet to exhaust pipe — specifi ...
MSRP $4.20
$3.58
MSRP $4.20
$3.58
16
Water Pump GM
GM Description: ACDelco Water Pump Module (Part Number: 12718538) is a replacement water pump assembly designed to circulate engine coolant reliably and efficiently. Design: Engineered for leak-resistant performance with smooth coolant-flow cavities and uniform wall secti ...
MSRP $334.66
$190.37
MSRP $334.66
$190.37
17
Fan & Motor GM
GM Notes: Includes Fan Blade.
Description: GM Genuine Parts Engine Cooling Fan Motor (Part Number: 85589271) is an engine cooling fan motor assembly intended to circulate air through the radiator and intercooler to support engine cooling. Designed to meet OEM durability and electrical characteristi ...
MSRP $308.45
$168.41
MSRP $308.45
$168.41
17
Fan & Motor GM
GM Notes: Includes Fan Blade.
Description: GM Genuine Parts Passenger Side Engine Cooling Fan Motor (Part Number: 86777555) is a factory cooling fan motor assembly intended to drive the engine cooling fan. Function: Drives cooling fan(s) to maintain appropriate engine coolant temperaturesApplicatio ...
MSRP $410.94
$223.13
MSRP $410.94
$223.13
17
Fan & Motor GM
GM Notes: Includes Fan Blade.
Description: GM Genuine Parts Driver Side Engine Cooling Fan Motor (Part Number: 86777556) is an engine cooling fan motor that circulates air through the radiator and A/C condenser. Function: Powers the engine cooling fan to move air across the radiator and condenser f ...
MSRP $431.50
$234.29
MSRP $431.50
$234.29
18
Fan Shroud GM
GM Description: GM Genuine Parts Engine Coolant Fan Rear Shroud (Part Number: 85112427) is a cooling fan shroud component that helps direct airflow through the radiator and assists the fan assembly in maintaining proper engine temperatures. Built to OEM-quality standards. ...
MSRP $202.97
$132.74
MSRP $202.97
$132.74