Engine Parts for 2025 GMC Sierra 2500 HD
1. Vibration Damper 
2. Filler Cap 
3. Filler Cap 
4. Filler Cap 
5. Filler Cap 
6. Filler Cap 
7. Oil Pan 
8. Filler Cap 
9. Filler Cap 
10. ACDelcoâ„¢ Filler Cap 
11. ACDelcoâ„¢ Oil Filter 
12. Oil Pan 
13. Oil Filter 
14. Oil Filter 
15. Oil Filter 
16. Oil Filter 
17. Oil Filter 
18. Oil Filter 
19. ACDelcoâ„¢ Oil Filter 
20. Oil Tube 21. Drain Plug Insert No.
Part # / Description / Price
Price
1
Crankshaft Balancer 
GM
GM Description: GM Genuine Parts Crankshaft Balancer (Part Number: 12680364) is a crankshaft balancer (harmonic damper) manufactured to OEM specifications to control torsional vibrations and protect the drivetrain. Also known as: Crankshaft PulleyFunction: Dampens cranksh ...
MSRP $137.85
$86.05
MSRP $137.85
$86.05
2
Crankshaft Pulley Bolt GM
GM Notes: PARTS: Part cannot be reused/reinstalled.
Description: GM Genuine Parts Engine Crankshaft Pulley Bolt (Part Number: 11547372) is a factory-spec bolt used to secure the crankshaft harmonic balancer / pulley. Intended for specified supercharged and non-dry-sump engines. Function: Fastens the vibration damper / h ...
MSRP $42.87
$28.56
MSRP $42.87
$28.56
3
Engine Front Cover GM
GM Description: GM Genuine Parts Engine Front Cover (Part Number: 12691692) is a factory timing/front engine cover intended to enclose and protect the front valvetrain/timing components. Function: Protects timing components and provides sealing surfaces at the front of th ...
MSRP $100.73
$62.86
MSRP $100.73
$62.86
4
Front Crankshaft Engine Oil Seal GM
GM Description: GM Genuine Parts Front Crankshaft Engine Oil Seal (Part Number: 12634614) is a front crankshaft seal engineered to retain engine oil and prevent leaks at the crankshaft opening. Category: Engine Component PartsFunction: Seals crankshaft openings to withsta ...
MSRP $24.04
$17.80
MSRP $24.04
$17.80
4
Crankshaft Rear Oil Seal GM
GM Positions: Rear
Description: GM Genuine Parts Crankshaft Rear Oil Seal (Part Number: 12665076) is an OEM rear crankshaft sealing component designed to resist heat and pressure and help prevent engine oil leaks. Expanded term: Crankshaft (CR/SHF)Function: Seals the rear end of the cran ...
MSRP $44.52
$29.66
MSRP $44.52
$29.66
5
Camshaft Phaser Magnet GM
GM Description: GM Genuine Parts Camshaft Phaser Magnet (Part Number: 12675031) is an OEM magnet used with camshaft position actuators to ensure proper phaser positioning for variable valve timing (VVT) systems. Function: Assists in camshaft phaser positioning for accurat ...
MSRP $32.87
$24.35
MSRP $32.87
$24.35
6
Camshaft Position Actuator Magnet Gasket GM
GM Description: GM Genuine Parts Camshaft Position Actuator Magnet Gasket (Part Number: 12623437) is a GM Genuine Parts gasket used with the camshaft position actuator magnet cover to help seal the assembly and prevent oil leaks. Type: Engine Component PartsFunction: Seal ...
MSRP $17.11
$13.64
MSRP $17.11
$13.64
7
Valve Cover GM
GM Positions: Left
Description: GM Genuine Parts Driver Side Valve Rocker Arm Cover (Part Number: 12723317) is a valve rocker arm cover (valve cover) for the driver side of specified engines, providing sealing and protection for top-end valve train components. Function: Covers and seals ...
MSRP $109.99
$68.65
MSRP $109.99
$68.65
7
Valve Cover GM
GM Positions: Right
Description: GM Genuine Parts Valve Cover (Part Number: 12727455) is an engine top cover designed to protect valvetrain components and support proper sealing at the cylinder head. Function: Covers and protects rocker arms and other valvetrain components while providing ...
MSRP $120.12
$74.95
MSRP $120.12
$74.95
8
Valve Cover Gasket GM
GM Positions: Left
Notes: PARTS: Part included with valve cover.
Description: GM Genuine Parts Valve Cover Gasket (Part Number: 12619787) is a valve cover sealing gasket designed to maintain a leak-free seal between the valve cover and cylinder head. Function: Seals the valve cover to prevent oil leaks and protect valvetrain compone ...
MSRP $8.86
$7.06
MSRP $8.86
$7.06
9
MSRP $63.28
$42.17
9
MSRP $80.97
$53.96
10
Rubber Grommet with 60 mm Diameter, Round Top, and Bottom GM
GM Positions: Left
Notes: PARTS: Part included with insulator.
Description: GM Genuine Parts Rubber Grommet with 60 mm Diameter, Round Top, and Bottom (Part Number: 12591714) is an OEM engine valve cover grommet designed to provide sealing and vibration isolation. Type: Engine valve cover grommet (upper intake manifold sight shiel ...
MSRP $6.78
$5.78
MSRP $6.78
$5.78
11
Engine Oil Filler Tube GM
GM Description: GM Genuine Parts Engine Oil Filler Tube (Part Number: 12668614) is a factory replacement oil filler tube designed to provide a sealed service port for adding engine oil. Application: Specified for multiple gasoline engine displacements including 4.3L, 5.3L ...
MSRP $9.15
$7.27
MSRP $9.15
$7.27
12
Engine Oil Filler Cap O-Ring GM
GM Notes: PARTS: Part included with filler tube.
Description: GM Genuine Parts Engine Oil Filler Cap O-Ring (Part Number: 24100002) is an O-ring seal designed for the engine oil filler cap to help prevent oil leaks and ingress of contaminants. Type: Oil filler cap O-ring/sealFunction: Provides pressure- and contamina ...
$19.62
$19.62
13
Filler Cap GM
GM Description: 6.6L gas. Incl.Gasket. Stamped dexos 5w-30. 3.6L turbo.
MSRP $26.84
$17.45
MSRP $26.84
$17.45
15
Oil Pan GM
GM Description: 6.6L gas. Savana 2500. Express 2500. Tahoe. Suburban. Incl.Drain Plug,Drain Plug Gasket and Engine Oil Pump Pickup Tube. 6.2L. Express 3500. Savana 3500.
MSRP $293.72
$182.81
MSRP $293.72
$182.81
16
Engine Oil Level Indicator Switch GM
GM Notes: PARTS: Part included with oil pan.
Description: GM Genuine Parts Engine Oil Level Indicator Switch (Part Number: 12696433) is an OE oil level indicator switch assembly including seal, designed to monitor engine oil level. Function: Detects oil level and provides signal to vehicle monitoring systemsInclu ...
MSRP $16.21
$12.93
MSRP $16.21
$12.93
17
Engine Crankshaft Oil Deflector GM
GM Notes: PARTS: Part included with oil pan.
Description: 5.3 & 6.2L. 6.6L gas. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $54.85
$36.54
MSRP $54.85
$36.54
18
Drain Plug GM
GM Notes: PARTS: Part included with oil pan.
Description: GM Genuine Parts Drain Plug (Part Number: 55577568) is a factory oil pan drain plug designed for engine oil service. Function: Seals the engine oil pan drain opening and allows service draining when removed.Also known as: Engine Oil Drain PlugService Type: ...
MSRP $16.13
$12.86
MSRP $16.13
$12.86
19
Oil Filter GM
GM Notes: PARTS: Part included with oil pan.
Description: ACDelco Filter (Part Number: 12735811) is an oil filter element intended for engine lubrication system service. Type: Oil filterFunction: Filters oil to remove contaminants and protect engine componentsQuality: ACDelco oil filter manufactured to specificat ...
$100.20
$100.20
20
Oil Filter Connector GM
GM Notes: PARTS: Part included with oil pan.
Description: GM Genuine Parts Oil Filter Connector (Part Number: 12600225) is a fitting or adapter used with engine oil filter housings and mounting systems. Function: Connects oil filter housing or adapter components to the engine lubrication system.Application: Used ...
MSRP $14.23
$11.34
MSRP $14.23
$11.34
21
Engine Oil Dipstick GM
GM Description: GM Genuine Parts Engine Oil Dipstick (Part Number: 12664925) is an OE engine oil level indicator (dipstick) intended to provide accurate oil level readings for specified V6 and V8 engines. Function: Allows visual measurement of engine oil level for mainten ...
MSRP $19.01
$14.08
MSRP $19.01
$14.08
22
Multi-Purpose O-Ring GM
GM Notes: PARTS: Part included with dipstick.
Description: GM Genuine Parts Multi-Purpose O-Ring (Part Number: 24504031)Type: Seal / O‑ringMaster description: SEAL-OIL LVL IND (O RING) — oil level indicator O‑ring sealFunction: Helps prevent leaks in engine components such as dipstick tube or oil-level indi ...
MSRP $0.67
$0.57
MSRP $0.67
$0.57
23
Oil Tube GM
GM Description: GM Tube (Part Number: 12734060, SKU: 12734060) is an OEM oil-level indicator tube assembly intended for use as a factory replacement. Purpose: Serves as the oil level indicator tube assembly to route and position the dipstick and provide accurate oil-level ...
MSRP $13.19
$10.50
MSRP $13.19
$10.50
25
Intake Manifold Assembly GM
GM Description: GM Genuine Parts Intake Manifold Assembly (Part Number: 12639087) is a complete intake manifold assembly specified for high-displacement V8 engines. Manufactured to GM engine assembly standards. Function: Distributes intake air to engine cylinders and prov ...
MSRP $214.25
$133.10
MSRP $214.25
$133.10
26
Engine Intake Manifold Gasket GM
GM Description: GM Genuine Parts Engine Intake Manifold Gasket (Part Number: 12626354) is an OEM intake manifold gasket engineered to seal the intake manifold-to-head junction to prevent vacuum leaks and ensure proper engine operation. Function: Creates an effective seal ...
$73.90
$73.90
27
Manifold Cover GM
GM Description: GM Genuine Parts Cover (Part Number: 12724936) is a factory intake manifold cover component intended to protect and seal the intake manifold area. Purpose: Covers and protects intake manifold components; preserves engine bay appearance and helps channel ai ...
MSRP $122.83
$76.65
MSRP $122.83
$76.65