Cooling System for 2021 GMC Sierra 1500
No.
Part # / Description / Price
Price
N/A
By-Pass Pipe 
GM
GM Description: Genuine GM OEM By-Pass Pipe (MPN: 55511710) for Silverado and Sierra diesel models with 3.0L engines. This factory bypass pipe directs coolant flow from the valve to the EGR cooler, maintaining optimal engine temperature and emissions control performance. ...
MSRP $27.57
$19.72
MSRP $27.57
$19.72
N/A
Exhaust Gas Recirculation Cooler Water Bypass Outlet Hose GM
GM Description: # Product Description
The GM Genuine OEM Exhaust Gas Recirculation Cooler Water Bypass Outlet Hose (MPN: 55497096) is engineered for 3.0L diesel engines and manages coolant flow in your vehicle's EGR cooling system. This authentic General Motors part ensu ...
MSRP $17.53
$11.92
MSRP $17.53
$11.92
N/A
Thermal Bypass Hose GM
GM Description: # Product Description
**Genuine GM OEM Thermal Bypass Hose (MPN: 55496921)** is a factory-engineered cooling system component designed for 3.0L diesel engines. This authentic General Motors part regulates coolant flow to maintain optimal engine operating ...
MSRP $17.13
$12.25
MSRP $17.13
$12.25
N/A
Shutter GM
GM Description: Upgrade your Sierra or Silverado's cooling performance with the Genuine GM OEM Lower Dual Active Shutter (MPN: 85819961). This factory-original shutter assembly regulates airflow to your radiator, improving engine temperature management and fuel efficiency ...
$114.61
$114.61
N/A
Thermostat Bypass Hose GM
GM Description: The GM OEM Thermostat Bypass Hose (MPN: 55492656) is a genuine engine cooling system component engineered for 3.0L diesel engines. This authentic General Motors part maintains proper coolant circulation and temperature regulation, ensuring optimal engine p ...
MSRP $70.22
$45.61
MSRP $70.22
$45.61
N/A
Water Pump Gasket GM
GM Description: # Water Pump Gasket - GM OEM Part 55490545
Protect your engine's cooling system with this genuine GM OEM water pump gasket (MPN: 55490545), engineered for 3.0L diesel engines. This essential sealing component prevents coolant leaks and maintains optimal e ...
MSRP $3.84
$2.29
MSRP $3.84
$2.29
N/A
Acdelco™ Engine Water Pump Gasket GM
GM Description: 3.0L diesel. Silverado, sierra. 2023-25. Suburban. Tahoe. 2020-22. Escalade ESV. Yukon XL.
N/A
Inlet Hose GM
GM Description: The Genuine GM OEM Inlet Hose (MPN: 24001342) is a thermostat bypass hose designed for Chevrolet Silverado and GMC Sierra trucks equipped with 3.0L diesel engines. This low-pressure cooling system component measures 530mm in length and is essential for pro ...
MSRP $55.11
$37.66
MSRP $55.11
$37.66
N/A
By-Pass Hose Elbow GM
GM Description: This Genuine GM OEM By-Pass Hose Elbow (MPN: 24001336) is a 30-degree thermostat bypass elbow designed specifically for 3.0L diesel engines in 2023-2025 Chevrolet Silverado and GMC Sierra trucks. This critical cooling system component regulates coolant flo ...
MSRP $10.25
$7.33
MSRP $10.25
$7.33
N/A
Hoses GM
GM Description: This genuine GM OEM thermostat bypass hose (MPN: 24001093) is engineered to regulate coolant flow in select Silverado and Sierra models. The straight-design hose features a 68mm diameter and is essential for maintaining proper engine temperature management ...
MSRP $9.30
$6.65
MSRP $9.30
$6.65
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
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
1
Engine Radiator GM
GM Description: Genuine GM OEM Engine Radiator (MPN: 86785339) designed for high-performance cooling in 2023-2025 Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, Tahoe, Cadillac Escalade ESV, and GMC Yukon XL models equipped with enhanced towing capacity and performa ...
MSRP $477.84
$313.94
MSRP $477.84
$313.94
1
Engine Auxiliary Radiator GM
GM Description: The Engine Auxiliary Radiator (MPN: 84693040) is a genuine GM OEM cooling system component engineered for Chevrolet Silverado and GMC Sierra trucks equipped with 3.0L diesel engines. This auxiliary radiator provides supplemental engine cooling capacity, en ...
MSRP $515.86
$337.37
MSRP $515.86
$337.37
2
Hose GM
GM Description: Genuine GM OEM Engine Cooling Hose MPN 85046339 is engineered for premium cooling system performance in 2023-2025 Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, Tahoe, Cadillac Escalade ESV, and GMC Yukon XL models. This OEM cooling hose maintains op ...
MSRP $98.31
$65.36
MSRP $98.31
$65.36
3
Hose GM
GM Description: Genuine GM OEM Engine Cooling Hose (MPN: 85046337) designed for 2023-2025 Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, Tahoe, Cadillac Escalade ESV, and GMC Yukon XL. This factory original cooling system hose maintains proper coolant flow and engin ...
MSRP $85.60
$56.91
MSRP $85.60
$56.91
4
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
5
Radiator Surge Tank GM
GM Description: Upgrade your Silverado or Sierra's cooling system with the genuine GM OEM Radiator Surge Tank (MPN: 84645616), engineered specifically for 3.0L diesel engines. This original equipment manufacturer coolant reservoir manages system pressure by storing excess ...
MSRP $38.57
$26.36
MSRP $38.57
$26.36
6
Valve GM
GM Description: Genuine GM OEM Control Valve (MPN: 40009644) engineered for 3.0L diesel engines in 2020-2022 Silverado, Sierra, Suburban, Tahoe, Escalade ESV, and Yukon XL models. This OEM control valve regulates diesel fuel system pressure and engine performance, ensurin ...
MSRP $507.65
$316.85
MSRP $507.65
$316.85
7
Engine Coolant Thermostat Housing Gasket GM
GM Description: The Genuine GM OEM Engine Coolant Thermostat Housing Gasket (MPN: 55496127) is an essential engine sealing component designed for 3.0L diesel-powered Silverado and Sierra trucks. This OEM thermostat housing gasket creates a critical seal between the thermo ...
MSRP $1.72
$1.03
MSRP $1.72
$1.03
8
Water Pump Inlet Pipe GM
GM Description: Replace your worn or damaged water pump inlet pipe with this GM OEM part (MPN: 55496798), engineered for Silverado and Sierra 3.0L diesel engines. This genuine General Motors component ensures proper coolant circulation and optimal engine cooling performan ...
MSRP $96.69
$64.28
MSRP $96.69
$64.28
9
Radiator Outlet Pipe Seal GM
GM Description: The GM Genuine Radiator Outlet Pipe Seal (MPN: 55496156) is an OEM cooling system component engineered to prevent coolant leaks at the radiator connection point on select GM trucks. This authentic General Motors part is specifically designed for Silverado ...
MSRP $6.67
$4.77
MSRP $6.67
$4.77
10
F (S)Hose GM
GM Description: Genuine GM OEM F(S)Hose (MPN: 40009056) designed for 3.0L diesel engines in premium full-size GM trucks and SUVs including the 2020-2022 Silverado, Sierra, Escalade ESV, Suburban, Tahoe, and Yukon XL. This OEM hose assembly delivers reliable coolant and fl ...
MSRP $106.32
$67.16
MSRP $106.32
$67.16
11
Engine Coolant Thermostat Housing Gasket GM
GM Description: The Engine Coolant Thermostat Housing Gasket (MPN: 55496954) is a genuine GM OEM part engineered to seal and protect your vehicle's cooling system. This original equipment manufacturer gasket is specifically designed for Chevrolet Silverado and GMC Sierra ...
MSRP $1.26
$0.75
MSRP $1.26
$0.75
12
Pump Kit GM
GM Description: The Genuine GM OEM Pump Kit (MPN: 40009584) is a complete water pump assembly designed for Silverado and Sierra trucks, including all necessary gaskets and pulleys for reliable cooling system performance. This authentic General Motors replacement part ensu ...
MSRP $149.08
$82.59
MSRP $149.08
$82.59
13
Fan & Motor GM
GM Notes: Includes Fan Blade.
Description: The GM OEM Fan & Motor assembly (MPN: 86778039) is engineered to deliver reliable cooling performance for your truck or SUV's engine and supercharger system. This genuine General Motors replacement fan motor is designed for 2023-2025 Silverado and Sierra m ...
MSRP $395.52
$216.55
MSRP $395.52
$216.55
13
Fan & Motor GM
GM Notes: Includes Fan Blade.
Description: Genuine GM OEM Fan & Motor Assembly (MPN: 86778037) is engineered to deliver reliable engine cooling performance across premium GM full-size trucks and SUVs. This upper radiator fan motor with integrated blade assembly fits Silverado and Sierra 3.0L diesel ...
MSRP $292.80
$160.31
MSRP $292.80
$160.31
13
Fan & Motor GM
GM Notes: Includes Fan Blade.
Description: **Genuine GM OEM Fan & Motor Assembly (MPN: 85654566)**
This Genuine GM OEM Fan & Motor assembly (MPN: 85654566) is engineered for heavy-duty cooling performance in full-size GM SUVs including the Tahoe, Suburban, and Escalade ESV. Specifically designed f ...
MSRP $278.24
$152.33
MSRP $278.24
$152.33
14
Engine Coolant Fan Rear Shroud GM
GM Description: The Genuine GM OEM Engine Coolant Fan Rear Shroud (MPN: 84203930) is engineered to direct airflow through your vehicle's cooling system and maintain optimal engine temperature. This authentic General Motors part is specifically designed for Chevrolet Silve ...
MSRP $139.24
$92.56
MSRP $139.24
$92.56