Gaskets & Sealing Systems for 2021 GMC Sierra 1500
No.
Part # / Description / Price
Price
1
MSRP $145.44
$80.72
2
Water Pump Gasket 
GM
GM Notes: PARTS: Part included with control valve.
Description: 3.0L diesel. May be made from fiber or a rubberized composite material
MSRP $8.00
$4.46
MSRP $8.00
$4.46
2
Acdelco™ Engine Water Pump Gasket GM
GM Notes: PARTS: Part included with control valve.
Description: 3.0L diesel. Silverado, sierra. 2023-25. Suburban. Tahoe. 2020-22. Escalade ESV. Yukon XL.
3
Water Pump Bolt GM
GM Description: 2023-25, m5x.8x25. 2020-22. 2.7L turbo, rwd. 2.7L turbo, awd. 1.2L. 2.0L turbo. 5.5L. 3.0L diesel. 5x25mm. 2019.
MSRP $7.02
$4.46
MSRP $7.02
$4.46
4
Control Valve Replaced by 40009644 GM
GM Description: 3.0L diesel. Silverado, sierra. 2020-22. Suburban. Tahoe. Control Valve. Incl.Gasket. Escalade ESV. Yukon XL.
Not For Sale
Not For Sale
5
Engine Coolant Thermostat Housing Gasket GM
GM Notes: PARTS: Part included with control valve.
Description: Silverado, sierra. 3.0L diesel. Helps seal the gap between the exterior of your vehicle's thermostat housing and the exterior of the engine to help prevent leakage
MSRP $2.66
$1.48
MSRP $2.66
$1.48
6
Water Pump Inlet Pipe GM
GM Description: Silverado, sierra. 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $96.69
$64.39
MSRP $96.69
$64.39
7
Radiator Outlet Pipe Seal GM
GM Description: Silverado, sierra. 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $6.67
$4.46
MSRP $6.67
$4.46
8
Thermal Bypass Hose GM
GM Notes: PARTS: Part included with hose.
Description: 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $17.13
$11.46
MSRP $17.13
$11.46
9
Multi-Purpose Clamp GM
GM Notes: PARTS: Part included with hose.
Description: Helps prevent leaks
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $2.77
$1.76
MSRP $2.77
$1.76
10
Thermostat Bypass Hose GM
GM Notes: PARTS: Part included with hose.
Description: 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $68.50
$43.45
MSRP $68.50
$43.45
11
Engine Coolant Thermostat Housing Gasket GM
GM Description: 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $1.62
$0.90
MSRP $1.62
$0.90
12
F (S)Hose GM
GM Description: 3.0L diesel. Silverado, sierra. 2020-22. Escalade ESV. Suburban. Tahoe. Yukon XL.
MSRP $103.72
$65.63
MSRP $103.72
$65.63
13
Engine Coolant Thermostat Housing Gasket GM
GM Description: Silverado, sierra. 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.00
$4.46
MSRP $8.00
$4.46
15
Exhaust Gas Recirculation Cooler Water Bypass Outlet Hose GM
GM Description: 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $17.11
$10.88
MSRP $17.11
$10.88
17
(Replaces 55506774) Turbocharger Coolant Return Hose GM
GM Description: Outlet. Rpo lm2. 2020-22. Without clamp. Escalade. 3.0l diesel. Suburban. 3.0l diesel. Tahoe. 3.0l diesel. Return. Yukon. 3.0l diesel.
MSRP $48.07
$30.48
MSRP $48.07
$30.48
19
Thermostat Bypass Hose GM
GM Description: 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $31.83
$20.24
MSRP $31.83
$20.24
20
MSRP $53.14
$33.71
21
Engine Coolant Temperature Sensor GM
GM Description: Engine Cooling. Location-Coolant Pipe. Location-Engine Block. 3.0L diesel, control valve. Helps keep engine running at proper temperature
Alerts vehicle operator of high engine temperature conditions
MSRP $12.58
$7.01
MSRP $12.58
$7.01
22
Engine Coolant Temperature Sensor GM
GM Description: Helps keep engine running at proper temperature
Alerts vehicle operator of high engine temperature conditions
Alerts vehicle operator of high engine temperature conditions
No.
Part # / Description / Price
Price
1
Engine Oil Cooler Kit with Gasket GM
GM Description: Silverado, sierra. 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
2
Engine Oil Cooler Gasket GM
GM Notes: PARTS: Part included with oil cooler.
Description: Cooler To Adapter. 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $27.56
$17.52
MSRP $27.56
$17.52
2
Engine Oil Cooler Seal GM
GM Description: Adapter To Block. Gasket. 2.0L turbo. This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
MSRP $0.85
$0.57
MSRP $0.85
$0.57
3
Engine Oil Cooler Coolant Inlet Hose GM
GM Description: Silverado, sierra. Inlet. Engine to t-connector. 3.0L diesel, upper. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $15.02
$9.54
MSRP $15.02
$9.54
4
Engine Oil Cooler Coolant Inlet Hose GM
GM Description: Silverado, sierra. Inlet. T-connector to cooler. 3.0L diesel, lower. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $13.66
$8.67
MSRP $13.66
$8.67
5
Engine Coolant Fitting GM
GM Description: 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $36.86
$23.43
MSRP $36.86
$23.43
6
By-Pass Hose GM
GM Description: Silverado, sierra. Engine code lm2. Outlet. Escalade. Suburban. Tahoe. 3.0L diesel, 2020-22. Yukon.
MSRP $106.82
$59.29
MSRP $106.82
$59.29
6
Auxiliary Radiator Inlet Hose GM
GM Positions: Lower
Description: 2023-25. 3.0L diesel. Charge Air Cooling.
MSRP $77.47
$51.71
MSRP $77.47
$51.71
7
Multi-Purpose Clamp GM
GM Notes: PARTS: Part included with outlet hose.
Description: Helps prevent leaks
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $2.77
$1.76
MSRP $2.77
$1.76
8
Multi-Purpose Clamp GM
GM Notes: PARTS: Part included with outlet hose.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors