Engine for 2025 GMC Sierra 2500 HD
No.
Part # / Description / Price
Price
N/A
Motor Mount 
GM
GM Description: Silverado, Sierra 2500 HD. Right. Silverado, Sierra 3500 HD. 6.6L diesel.
MSRP $127.77
$79.75
MSRP $127.77
$79.75
N/A
Driver Side Engine Mount GM
GM Description: 6.6L diesel. Silverado, Sierra 2500 HD. Left. Silverado, Sierra 3500 HD. Lined with rubber to help reduce engine vibration
Designed to function with all surrounding components to help ensure that the mount bolts correctly and there is minimal interference with other parts on your vehicle
MSRP $108.30
$67.60
MSRP $108.30
$67.60
N/A
$5,708.97
N/A
Piston Pin GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $24.90
$18.45
MSRP $24.90
$18.45
1
Cylinder Head GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $833.93
$516.20
MSRP $833.93
$516.20
2
Head Gasket GM
GM Description: GM Genuine Parts Cylinder Head Gasket (Part Number: 12727484) is a factory engine gasket intended to seal the cylinder head to the engine block, maintaining combustion chamber integrity and coolant/oil separation. Designed for heavy-duty engine application ...
MSRP $88.36
$57.42
MSRP $88.36
$57.42
2
Head Gasket GM
GM Description: GM Genuine Parts Engine Cylinder Head Gasket (Part Number: 12727485) is a factory-spec head gasket designed to seal the cylinder head to the engine block and maintain combustion and coolant sealing. Function: Seals combustion and coolant passages between c ...
$104.38
$104.38
2
MSRP $123.77
$77.24
3
Valve Cover GM
GM Description: 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Left. Silverado, Sierra 3500 HD.
MSRP $115.57
$72.13
MSRP $115.57
$72.13
3
Valve Cover GM
GM Description: 6.6L diesel, upper components. Silverado, Sierra 2500 HD. Right. Silverado, Sierra 3500 HD.
MSRP $111.65
$69.68
MSRP $111.65
$69.68
4
Valve Cover Gasket GM
GM Description: GM Genuine Parts Valve Cover Gasket (Part Number: 12691860) is a valve cover gasket designed to seal the rocker arm cover and help prevent oil leaks. Type: Valve Cover GasketFunction: Seals the valve cover to the cylinder head to retain engine oil and prev ...
MSRP $35.51
$23.65
MSRP $35.51
$23.65
5
Engine Intake Valve GM
GM Description: Silverado, Sierra 2500 HD. Intake. Silverado, Sierra 3500 HD.
MSRP $13.47
$10.76
MSRP $13.47
$10.76
6
Valve Seals GM
GM Description: GM Genuine Parts Valve Seals (Part Number: 12633926) are engine valve stem seals designed to control oil flow to valve stems and help prevent excessive oil consumption. Type: Valve stem oil sealsFunction: Regulate oil at valve stems to help prevent oil bur ...
MSRP $8.40
$7.18
MSRP $8.40
$7.18
7
Valve Springs GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $8.06
$6.88
MSRP $8.06
$6.88
8
MSRP $440.60
$272.74
9
Valve Spring Retainer 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 $8.66
$7.40
MSRP $8.66
$7.40
11
Engine Intake Rocker Arm GM
GM Notes: Includes: Roller And Nut.
Description: GM Genuine Parts Engine Intake Rocker Arm (Part Number: 12636189) is an OE intake rocker arm manufactured to GM specifications for valve actuation in the intake train. Function: Transfers camshaft motion to the intake valve to control valve timing and lift ...
MSRP $28.33
$20.99
MSRP $28.33
$20.99
11
Engine Exhaust Rocker Arm GM
GM Notes: Includes: Roller And Nut.
Description: GM Genuine Parts Engine Exhaust Rocker Arm (Part Number: 12636190) is an OE exhaust rocker arm produced to GM specifications to actuate exhaust valves reliably. Function: Transmits camshaft motion to the exhaust valve to control valve timing and lift.Appli ...
MSRP $28.33
$20.99
MSRP $28.33
$20.99
12
Valve Push Rod 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 $9.58
$7.63
MSRP $9.58
$7.63
13
Engine Hydraulic Valve Adjuster/Valve Lifter GM
GM Description: GM Genuine Parts Engine Hydraulic Valve Adjuster/Valve Lifter (Part Number: 12670435) is a valve lifter assembly that maintains proper valve lash by automatically adjusting valve clearance in compatible engines. Intended to help preserve valve train perfor ...
MSRP $14.95
$11.92
MSRP $14.95
$11.92
14
Engine Camshaft 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 $255.37
$158.66
MSRP $255.37
$158.66
15
Engine Camshaft Bearing GM
GM Description: No. 2, 3, 4, 5. 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 $8.45
$7.22
MSRP $8.45
$7.22
15
Engine Camshaft Bearing GM
GM Description: No. 1. 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 $8.46
$7.22
MSRP $8.46
$7.22
16
Crankshaft Front Oil Seal GM
GM Description: GM Genuine Parts Crankshaft Front Oil Seal (Part Number: 97209341) is a genuine GM front crankshaft oil seal designed to help prevent engine oil leaks at the front seal location. Function: Seals the crankshaft front cover to help retain engine oil and prev ...
MSRP $71.22
$47.44
MSRP $71.22
$47.44
17
Timing Cover GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $153.21
$95.62
MSRP $153.21
$95.62
18
Camshaft Gear GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $276.98
$172.38
MSRP $276.98
$172.38
21
Piston GM
GM Notes: Includes: Piston Pin & Ring Set.
Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
MSRP $213.16
$132.43
MSRP $213.16
$132.43
22
MSRP $104.46
$64.67
23
Connecting Rod Bearing GM
GM Notes: Includes: Eight Standard Upper & Lower Bearing.
Description: GM Genuine Parts Connecting Rod Bearing (Part Number: 12685817) is a bearing set used to support connecting rod journals in heavy-duty GM engines. Category: Engine Component PartsFunction: Bearing surfaces for connecting rods to ensure proper clearance and ...
MSRP $15.90
$12.67
MSRP $15.90
$12.67
24
Main Bearings GM
GM Notes: Includes: One Upper, One Lower & One Thrust Bearing.
Description: Silverado, sierra. Bearing kit. All.
MSRP $100.31
$62.59
MSRP $100.31
$62.59
25
Engine Crankshaft GM
GM Notes: Includes: Crankshaft Timing Gear.
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
$1,148.47
$1,148.47
26
Rear Crankshaft Oil Seal GM
GM Description: GM Genuine Parts Rear Crankshaft Oil Seal (Part Number: 97209342) is a factory rear main seal engineered to seal the crankshaft (CR/SHF) rear journal and prevent engine oil leaks at the rear of the engine. It is designed to withstand heat and pressure typi ...
MSRP $83.58
$55.68
MSRP $83.58
$55.68
27
Vibration Damper GM
GM Description: 6.6L diesel, upper components. 2017-19. Silverado, sierra.
MSRP $169.57
$105.82
MSRP $169.57
$105.82
28
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 $52.44
$34.93
MSRP $52.44
$34.93
29
Oil Pan GM
GM Description: GM Genuine Parts Oil Pan (Part Number: 12725600) is an engine oil pan assembly for heavy-duty Silverado and Sierra diesel models (as specified). Type: Oil pan assemblyApplication notes: Designed for Silverado/Sierra 2500HD and 3500HD 6.6L diesel lower comp ...
MSRP $129.82
$81.04
MSRP $129.82
$81.04
29
Oil Pan GM
GM Description: 6.6L diesel, lower components. Silverado, Sierra 2500 HD. Upper. Silverado, Sierra 3500 HD.
MSRP $250.05
$155.38
MSRP $250.05
$155.38
30
Front Oil Pan Seal GM
GM Description: General Motors (GM) Genuine Parts Front Oil Pan Seal (Part Number: 12642251) is an oil pan seal designed to deliver a factory-style seal for oil pans on specified heavy-duty Silverado/Sierra models. Type: SEAL-OIL PAN FRT / Engine Component PartsFunction: ...
MSRP $8.34
$7.12
MSRP $8.34
$7.12
31
Oil Pump Drive Gear GM
GM Description: Oil pump drive gear. 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 $60.57
$42.47
MSRP $60.57
$42.47
32
Oil Pump GM
GM Notes: Includes: Oil Pump Driven Gear.
Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. From 02/01/2023.
MSRP $177.55
$110.32
MSRP $177.55
$110.32
33
Oil Pump Screen GM
GM Description: GM Genuine Parts Oil Pump Screen (Part Number: 12671398) is an OEM oil pickup screen assembly designed to filter debris from engine oil before it reaches the oil pump. Master description: SCREEN ASM (Assembly)-O/PMPFunction: Prevents large debris from ente ...
MSRP $40.30
$26.85
MSRP $40.30
$26.85
34
Oil Cooler GM
GM Description: Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Assembly. 6.6L diesel, lower components, fm 11/30/2023.
MSRP $476.73
$310.63
MSRP $476.73
$310.63
1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.