Cooling System for 2020 GMC Sierra 2500 HD
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
Radiator Shutter Assembly GM
GM Description: GM Genuine Parts Radiator Shutter Assembly (Part Number: 87830734) is an OEM lower radiator shutter that helps manage airflow through the radiator area for thermal efficiency. Type: Exterior Body/Chassis — lower radiator shutter assemblyFunction: Control ...
$101.95
$101.95
N/A
MSRP $66.52
$46.64
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
N/A
Shutter GM
GM Description: GM Genuine Parts Shutter (Part Number: 85023720) is listed as "SHUTTER ASM-FRT BPR" — a front bumper shutter assembly for airflow control and cosmetic restoration. Type: Front bumper shutter assemblyFunction: Regulates airflow and restores OEM front-end ...
$179.93
$179.93
1
Engine Radiator GM
GM Description: GM Genuine Parts Engine Radiator (Part Number: 84889155) is a GM OE radiator assembly designed to transfer engine heat to the cooling airflow and maintain proper engine temperature. Type: Engine radiator assembly (RADIATOR ASM-ENG).Function: Transfers heat ...
MSRP $566.67
$411.48
MSRP $566.67
$411.48
2
Upper Hose GM
GM Description: GM Genuine Parts Radiator Inlet Hose (Part Number: 85119166) is an upper radiator hose that routes coolant to the engine, specified for heavy-duty Silverado and Sierra 6.6L gas applications. Type: Radiator Inlet / Upper HoseFunction: Carries coolant betwee ...
MSRP $95.34
$62.62
MSRP $95.34
$62.62
3
Lower Hose GM
GM Description: GM Genuine Parts Radiator Outlet Hose (Part Number: 85119159) is an outlet radiator hose (HOSE-RAD OTLT) delivering coolant from the radiator to the engine cooling system. Built to OEM specifications for fit and coolant routing. Type: Radiator outlet hose ...
MSRP $38.11
$26.73
MSRP $38.11
$26.73
5
Radiator Surge Tank GM
GM Description: GM Genuine Parts Radiator Surge Tank (Part Number: 84630072) is an OEM coolant surge/overflow tank designed to help manage coolant expansion and maintain proper system levels. Function: Provides expansion volume and a reservoir to help regulate coolant lev ...
MSRP $71.88
$50.41
MSRP $71.88
$50.41
6
187 Degrees Engine Coolant Thermostat with Seal GM
GM Description: GM Genuine Parts 187 Degrees Engine Coolant Thermostat with Seal (Part Number: 89018168) is a thermostat kit that regulates coolant flow to help the engine reach and maintain optimal operating temperature. Also known as: Engine Coolant Thermostat|15231Func ...
MSRP $74.05
$43.29
MSRP $74.05
$43.29
7
Water Inlet Seal GM
GM Description: GM Genuine Parts Water Inlet Seal (Part Number: 12587397) is an OE seal used at coolant inlet points to prevent coolant leakage and maintain the cooling system's integrity. It helps preserve proper engine temperature control by preventing coolant loss. Typ ...
MSRP $11.12
$7.77
MSRP $11.12
$7.77
8
Engine Water Pump Inlet Tube GM
GM Description: GM Genuine Parts Engine Water Pump Inlet Tube (Part Number: 12587395) is a coolant inlet tube that interfaces with the engine water pump to route coolant into the pump. Function: Provides coolant routing to the engine water pump inlet for proper cooling sy ...
MSRP $18.38
$12.86
MSRP $18.38
$12.86
9
Water Pump GM
GM Notes: Includes Thermostat Housing.
Description: ACDelco Pump (Part Number: 12735409) is listed as a water pump assembly (PUMP ASM-WAT) offered to meet factory cooling circulation requirements. This GM OE water pump is designed to deliver coolant flow per factory specifications. Type: GM OE Water PumpsFu ...
MSRP $567.12
$307.94
MSRP $567.12
$307.94
10
Water Pump Gasket GM
GM Description: ACDelco Water Pump Gasket (Part Number: 12682391) is an OE-grade sealing gasket for water pump assemblies that helps prevent coolant leaks and maintain proper coolant flow. Function: Provides a fluid-tight seal between the water pump and engine housing to ...
MSRP $0.88
$0.66
MSRP $0.88
$0.66
11
Engine Cooling Fan Blade GM
GM Description: GM Genuine Parts Engine Cooling Fan Blade (Part Number: 25919018) is a cooling fan blade assembly component for electric cooling systems used on select heavy-duty GM trucks and engines. Application: Designed for Silverado/Sierra models with electric coolin ...
MSRP $199.23
$109.06
MSRP $199.23
$109.06
12
Fan Blade Clutch GM
GM Description: GM Genuine Parts Fan Blade Clutch (Part Number: 84382012) is an OEM fan clutch assembly that engages and disengages the engine cooling fan to help control engine temperature and reduce noise when appropriate. Function: Fan clutch that couples or decouples ...
MSRP $349.78
$190.97
MSRP $349.78
$190.97
13
Upper Shroud GM
GM Description: GM Genuine Parts Shroud (Part Number: 84943753) is listed as "SHROUD-ENG COOL FAN UPR" — an upper engine cooling fan shroud intended to channel air through the radiator and cooling fan. Type: Upper engine cooling fan shroudFunction: Directs airflow for i ...
MSRP $75.37
$52.86
MSRP $75.37
$52.86
13
Fan Shroud GM
GM Description: GM Genuine Parts Engine Coolant Fan Lower Shroud (Part Number: 85102617) is a lower fan shroud that helps channel airflow through the radiator and around the engine cooling fan. Function: Directs airflow through the radiator and protects fan area for effec ...
MSRP $36.70
$25.73
MSRP $36.70
$25.73
13
Fan Shroud GM
GM Description: GM Genuine Parts Engine Cooling Fan Shroud (Part Number: 85112067) is an OEM fan shroud designed to optimize airflow through the radiator core and improve cooling efficiency for heavy-duty engine applications. Type: Radiator fan shroud / rear shroudFunctio ...
MSRP $198.93
$130.09
MSRP $198.93
$130.09