Engine Parts for 2020 GMC Sierra 3500 HD
No.
Part # / Description / Price
Price
1
2017-2024 GM - Crankshaft Pulley 
GM
GM 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
$33.53
MSRP $51.16
$33.53
2
2020-2024 GM - M10x1.5x49.8 Hex Head Bolt with Washer GM
GM 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
$5.20
MSRP $8.00
$5.20
3
2017-2024 GM - Vibration Damper GM
GM Description: 6.6L diesel, upper components. 2017-19. Silverado, sierra.
MSRP $165.43
$104.66
MSRP $165.43
$104.66
4
2006-2025 GM - Engine Harmonic Balancer Bolt GM
GM 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
$15.88
MSRP $22.29
$15.88
5
2006-2025 GM - 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
$39.58
MSRP $60.39
$39.58
6
2019-2024 GM - Engine Front Cover GM
GM Description: 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $149.47
$94.57
MSRP $149.47
$94.57
7
Acdelco™ 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
$45.54
MSRP $69.48
$45.54
8
2019-2023 GM - Valve Rocker Arm Cover GM
GM Positions: Right
Description: 6.6L diesel, upper components. 2017-19. Silverado, Sierra 2500 HD. Right. Silverado, Sierra 3500 HD. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $555.32
$344.70
MSRP $555.32
$344.70
8
Cover GM
GM Positions: Left
Description: 6.6L diesel, upper components. 2017-19. All. Left. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $561.73
$348.70
MSRP $561.73
$348.70
9
2017-2024 GM - Valve Cover Gasket GM
GM Positions: Left
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
$24.69
MSRP $34.65
$24.69
10
Engine Crankcase Vent Valve GM
GM Description: 6.6L diesel, upper components. 2017-19. Oil Separator Assy.. Incl.Gasket.
11
Acdelco™ Engine Oil Filler Cap GM
GM Description: Incl.Gasket. Stamped SAE 15w40. 6.6L diesel, upper components. 2017-19.
11
2017-2024 GM - 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
$10.19
MSRP $15.93
$10.19
12
1985-2025 GM - Engine Oil Filler Cap O-Ring GM
GM Notes: PARTS: Part included with filler cap.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $5.87
$3.84
MSRP $5.87
$3.84
13
2020-2024 GM - Oil Filler Tube GM
GM 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 $10.60
$7.73
MSRP $10.60
$7.73
15
2020-2023 GM - Upper Intake Manifold GM
GM Description: Silverado, Sierra 2500 HD. Diesel. Upper. Without separate sensors. Silverado, Sierra 3500 HD.
MSRP $221.99
$137.83
MSRP $221.99
$137.83
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
$79.99
MSRP $126.43
$79.99
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
$79.21
MSRP $125.19
$79.21
17
2017-2024 GM - 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
$8.47
MSRP $11.61
$8.47
No.
Part # / Description / Price
Price
1
Oil Pan GM
GM Description: Silverado, Sierra 2500 HD. Upper. 6.6L diesel, lower components. Silverado, Sierra 3500 HD.
MSRP $243.95
$151.46
MSRP $243.95
$151.46
2
2016-2024 GM - Engine Oil Level Indicator Switch GM
GM Notes: PARTS: Part included with upper oil pan.
Description: Incl.Seal. 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 $15.81
$11.53
MSRP $15.81
$11.53
3
2023-2024 GM - Oil Pan GM
GM Description: Silverado, Sierra 2500 HD. From 07/11/23. Silverado, Sierra 3500 HD. 6.6L diesel, lower components, from 07/11/2022.
MSRP $126.65
$80.15
MSRP $126.65
$80.15
4
MSRP $15.74
$11.48
5
MSRP $11.52
$8.41
6
1991-2025 GM - Multi-Purpose O-Ring GM
GM Notes: PARTS: Part included with dipstick.
Description: 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 $17.88
$12.74
MSRP $17.88
$12.74
7
2020-2024 GM - Engine Oil Dipstick Tube Assembly GM
GM Description: 6.6L diesel, lower components.
MSRP $31.02
$22.11
MSRP $31.02
$22.11
8
2017-2024 GM - Dipstick Seal GM
GM Notes: PARTS: Part included with oil tube.
Description: 2017-19. 6.6L diesel, lower components. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $3.47
$2.57
MSRP $3.47
$2.57
9
Engine Oil Cooler GM
GM Description: 6.6L diesel, lower components. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Helps maintain proper engine oil operating temperatures
Manufactured to GM OE specification for fit, form, and function
10
2020-2024 GM - Engine Oil Cooler Adapter GM
GM Description: 6.6L diesel, lower components. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $19.52
$13.91
MSRP $19.52
$13.91
11
2001-2024 GM - Engine Oil Cooler Adapter Gasket GM
GM Description: Adapter To Block. 6.6L diesel, engine side. 2017-19, engine side. 6.6L diesel, lower components, upper. 2015-16, engine side.
Manufactured to GM OE specification for fit, form, and function
MSRP $7.94
$5.88
MSRP $7.94
$5.88
12
2020-2024 GM - Engine Oil Cooler Adapter Gasket GM
GM Description: 6.6L diesel, lower components, lower. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.19
$6.71
MSRP $9.19
$6.71
13
Oil Filter GM
GM Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
13
Acdelco™ Oil Filter GM
GM Description: Silverado, Sierra 3500 HD. Diesel. Silverado, Sierra 2500 HD. STS, STS-v. 4.4l. XLR. 4.4l.
14
2016-2025 GM - Engine Oil Filter Connector GM
GM Notes: PARTS: Part included with oil cooler.
Description: 6.6L diesel, lower components. 3.6l. 1.5L. 2.5L. 1.2L turbo. Without powertrain cooling. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $20.56
$14.65
MSRP $20.56
$14.65
No.
Part # / Description / Price
Price
1
Oil Pan GM
GM Description: Silverado, Sierra 2500 HD. Upper. 6.6L diesel, lower components. Silverado, Sierra 3500 HD.
MSRP $243.95
$151.46
MSRP $243.95
$151.46
3
2023-2024 GM - Oil Pan GM
GM Description: Silverado, Sierra 2500 HD. From 07/11/23. Silverado, Sierra 3500 HD. 6.6L diesel, lower components, from 07/11/2022.
MSRP $126.65
$80.15
MSRP $126.65
$80.15
13
Oil Filter GM
GM Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
14
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
17
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
18
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
18
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
18
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
19
2020-2023 GM - Oil Pump Screen GM
GM Description: 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 $39.32
$25.78
MSRP $39.32
$25.78
No.
Part # / Description / Price
Price
19
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
20
Oil Filter GM
GM Notes: PARTS: Part included with adapter.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
20
Oil Filter GM
GM Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
21
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
22
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
23
Oil Filter GM
GM Notes: PARTS: Part included with upper oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
25
Oil Filter GM
GM Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
No.
Part # / Description / Price
Price
26
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: 6.6L diesel, lower components. STS, STS-v. 4.4l. XLR. 4.4l.
MSRP $11.23
$7.18
MSRP $11.23
$7.18
Related Parts
Part # / Description / Price
Price
RTV Silicone Sealant - 300 mL 2 GM
GM Description: Silverado, Sierra 3500 HD. Silverado, Sierra 2500 HD. Diesel. Lower. 1.2L turbo. 2019. 2020. Corvette. Liquid sealant. One-part, room temperature vulcanized (RTV) silicone commonly used as a formed-in-place gasket
Characterized by good elasticity and high temperature resistance after curing
Designed to adhere to a variety of materials including glass and most metals
2003-2024 GM - Engine Oil Pan Drain Plug Seal GM
GM Notes: PARTS: Part included with drain plug.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.89
$5.88
MSRP $7.89
$5.88
2013-2024 GM - Engine Oil Level Sensor Seal GM
GM Notes: PARTS: Part included with level indicator.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $17.48
$12.75
MSRP $17.48
$12.75
2 This part contains hazardous materials. Extra shipping costs apply.