Gaskets & Sealing Systems for 2025 GMC Sierra 2500 HD
No.
Part # / Description / Price
Price
1
Crankshaft Pulley 
GM
GM Notes: PARTS: Part has related component that cannot be reused/reinstalled; bolt.
Description: 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Provides power to the engine accessory drive system for proper engine performance
MSRP $51.16
$34.83
MSRP $51.16
$34.83
2
M10x1.5x49.8 Hex Head Bolt with Washer GM
GM Notes: PARTS: Part cannot be reused/reinstalled.
Description: 6.6L diesel, upper components. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.00
$4.94
MSRP $8.00
$4.94
3
Vibration Damper GM
GM Notes: PARTS: Part has related component that cannot be reused/reinstalled; bolt.
Description: 6.6L diesel, upper components. 2017-19. Silverado, sierra.
MSRP $165.43
$109.80
MSRP $165.43
$109.80
4
Engine Harmonic Balancer Bolt GM
GM Notes: PARTS: Part cannot be reused/reinstalled.
Description: 6.6L diesel, hexagon head. 2017-19. 6.6L diesel, upper components. 2015-16 6.6L diesel. Fastens vehicle's components together
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $22.29
$15.49
MSRP $22.29
$15.49
5
Crankshaft Balancer Washer GM
GM Description: 2017-19. 6.6L diesel, upper components. 2015-16 6.6L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $60.39
$41.11
MSRP $60.39
$41.11
6
Cover GM
GM Description: 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $149.47
$99.22
MSRP $149.47
$99.22
7
Acdelcoâ„¢ Engine Crankshaft Seal GM
GM Description: All models. 6.6L diesel. Express, savana. 2017-19. Sierra, silverado. 2015-16.
7
Crankshaft Front Oil Seal GM
GM Description: All models. Express, savana. 2017-19. 6.6L diesel, upper components. 2015-16. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Helps prevent leaks in various components of your vehicle
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $69.48
$47.30
MSRP $69.48
$47.30
8
Valve Cover GM
GM Positions: Left
Description: 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Left. Silverado, Sierra 3500 HD.
MSRP $112.75
$75.81
MSRP $112.75
$75.81
8
Valve Cover GM
GM Positions: Right
Description: 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Right. Silverado, Sierra 3500 HD.
MSRP $108.93
$73.24
MSRP $108.93
$73.24
9
Valve Cover Gasket GM
GM Positions: Right
Description: 2017-19. All. 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $34.65
$24.09
MSRP $34.65
$24.09
10
Air Inlet GM
GM Description: 6.6L diesel, upper components. 6.6L diesel, turbo assembly.
MSRP $81.13
$54.54
MSRP $81.13
$54.54
11
Engine Oil Filler Cap GM
GM Description: 2017-19. 6.6L diesel, upper components. Helps seal and keep oil from leaking out of your vehicle's engine oil filler opening
This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
MSRP $15.93
$9.83
MSRP $15.93
$9.83
11
Acdelcoâ„¢ Engine Oil Filler Cap GM
GM Description: Incl.Gasket. Stamped SAE 15w40. 6.6L diesel, upper components. 2017-19.
12
Engine Oil Filler Cap O-Ring GM
GM Notes: PARTS: Part included with filler cap.
Description: These are priced and sold Individually.
GM Genuine Parts Multi-Purpose O-Ring are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.
GM Genuine Parts Multi-Purpose O-Ring are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.
MSRP $29.35
$18.20
MSRP $29.35
$18.20
15
Intake Manifold GM
GM Description: Silverado, Sierra 2500 HD. Diesel. Upper. With separate sensors. Silverado, Sierra 3500 HD.
MSRP $178.21
$118.31
MSRP $178.21
$118.31
16
F (S)Manifold GM
GM Positions: Left
Description: Silverado, Sierra 2500 HD. Diesel. Left. Silverado, Sierra 3500 HD. 2017-19, lower. Silverado, sierra. 6.6l.
MSRP $125.19
$84.17
MSRP $125.19
$84.17
16
F (S)Manifold GM
GM Positions: Right
Description: Silverado, Sierra 2500 HD. Diesel. Right. Silverado, Sierra 3500 HD. 2017-19, lower. Silverado, sierra. 6.6l.
MSRP $126.43
$84.99
MSRP $126.43
$84.99
17
Upper Intake Manifold Seal GM
GM Description: 2017-19, lower. Silverado, sierra. 6.6l. Silverado, Sierra 2500 HD. Diesel. Silverado, Sierra 3500 HD. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $11.61
$8.17
MSRP $11.61
$8.17
Related Parts
Part # / Description / Price
Price
Flywheel Housing to Engine Seal GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.73
$5.44
MSRP $7.73
$5.44
MSRP $120.75
$81.18