Engine for 2025 GMC Sierra 1500
No.
Part # / Description / Price
Price
N/A
RTV Silicone Sealant - 300 mL 2 
GM
GM Description: ACDelco RTV Silicone Sealant - 300 mL (Part Number: 19369831) is a one-part RTV silicone sealant formulated as a formed‑in‑place gasket with high temperature resistance and elasticity after curing. Type: Room Temperature Vulcanizing (RTV) silicone seal ...
$130.46
$130.46
N/A
Oil Cooler GM
GM Description: Silverado, sierra. 3.0L diesel, 2025-26. Suburban. Tahoe. Yukon XL.
MSRP $140.90
$92.56
MSRP $140.90
$92.56
N/A
Valve GM
GM Description: Silverado, sierra. 3.0L diesel. Suburban. Tahoe. Escalade ESV. Yukon XL.
MSRP $49.29
$32.84
MSRP $49.29
$32.84
N/A
By-Pass Hose GM
GM Description: Silverado, sierra. Engine code lz0. Outlet. 3.0L diesel, 2023-26.
MSRP $35.24
$22.90
MSRP $35.24
$22.90
N/A
Front Mount GM
GM Description: GM Genuine Parts Mount (Part Number: 85623481) is an engine component mount assembly intended for use on specific Silverado and Sierra models. The master description identifies this as an engine mount (MOUNT ASM-ENG). Type: Engine Mount AssemblyApplication ...
MSRP $154.97
$96.74
MSRP $154.97
$96.74
N/A
Front Mount GM
GM Description: GM Genuine Parts Mount (Part Number: 85623482) is an engine mount assembly used to support and isolate engine movement within the engine compartment. Function: Supports engine and helps isolate vibration from the vehicle bodyApplication: Specified for Silv ...
MSRP $154.97
$96.74
MSRP $154.97
$96.74
N/A
Engine 1 GM
GM Notes: Does Not Include: Exhaust Manifolds or Engine Electrical.
Description: GM Genuine Parts Engine (Part Number: 12731655) is a factory engine assembly provided as an original-equipment replacement. Type: Engine Assemblies complete engine unitFunction: Replaces the powertrain assembly to restore engine power, mounting, and mechan ...
$5,259.45
$5,259.45
N/A
Inlet Hose GM
GM Description: Silverado, sierra. Engine code lz0. 3.0L diesel, 2025-26. 2023-26. Suburban. Inlet. Engine to t-connector. Tahoe. Yukon. All.
MSRP $15.69
$12.52
MSRP $15.69
$12.52
1
Cylinder Head GM
GM Notes: Includes: Valves & Valvetrain.
Description: Silverado, sierra. Suburban. Yukon XL.
$1,459.66
$1,459.66
2
Head Gasket GM
GM Description: Silverado, sierra. 2.05mm. Suburban. 2.05mm. Tahoe. 2.05mm. Thickness. 2.05mm. Yukon.
$107.04
$107.04
2
Head Gasket GM
GM Description: Silverado, sierra. 1.95mm. Suburban. 1.95mm. Tahoe. 1.95mm. Thickness. 1.95mm. Yukon.
MSRP $107.60
$67.15
MSRP $107.60
$67.15
2
Head Gasket GM
GM Description: Silverado, sierra. 1.85mm. Suburban. 1.85mm. Tahoe. 1.85mm. Thickness. 1.85mm. Yukon.
$110.28
$110.28
4
Engine Valve Cover Gasket Set GM
GM Description: GM Genuine Parts Engine Valve Cover Gasket Set (Part Number: 55502647) is a gasket kit for valve cover service on specified diesel 3.0L engines. Type: Gasket KitFunction: Seals valve cover to prevent oil leaks and maintain proper engine sealingApplications ...
MSRP $61.66
$41.08
MSRP $61.66
$41.08
5
Intake Valve GM
GM Description: Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $6.73
$5.74
MSRP $6.73
$5.74
6
Exhaust Valve GM
GM Description: Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $10.76
$8.59
MSRP $10.76
$8.59
7
Valve Seals GM
GM Description: GM Genuine Parts Valve Seals (Part Number: 55484799) are engine valve stem oil seals designed to control oil flow past valve stems. Function: Seals valve stem to prevent excess oil from entering combustion chamberApplication: Intended for use in select hea ...
MSRP $4.43
$3.76
MSRP $4.43
$3.76
9
Valve Spring Retainer GM
GM Description: Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $4.08
$3.47
MSRP $4.08
$3.47
10
Valve Keeper GM
GM Description: GM Valve Keeper (Part Number: 90529533) is an OEM engine valve keeper (retainer key) designed to secure valve springs to the valve stem. Supplied to meet original retention requirements and manufactured to GM standards. Function: Locks the valve spring ret ...
$27.70
$27.70
11
Rocker Arms GM
GM Description: Silverado, sierra. Suburban. Tahoe. Escalade ESV. Yukon XL.
MSRP $3.95
$3.38
MSRP $3.95
$3.38
12
Valve Lifter GM
GM Description: Silverado, sierra. Equinox, Terrain. Cruze. Adjusts the valves on your vehicle's engine for proper performance
MSRP $5.74
$4.90
MSRP $5.74
$4.90
13
Engine Camshaft GM
GM Description: Silverado, sierra. Suburban. Tahoe. Yukon. Exhaust.
MSRP $163.07
$101.79
MSRP $163.07
$101.79
13
$157.06
14
Front Crankshaft Engine Oil Seal GM
GM Notes: Includes: Front Crankshaft Seal.
Description: GM Genuine Parts Front Crankshaft Engine Oil Seal (Part Number: 55509254) is a front crankshaft oil seal designed to prevent engine oil leaks at the crankshaft opening and maintain engine lubrication. Type: Front crankshaft oil sealFunction: Seals the cran ...
MSRP $14.16
$11.29
MSRP $14.16
$11.29
15
Secondary Timing Chain GM
GM Description: GM Genuine Parts Secondary Timing Chain (Part Number: 55515943) is a secondary timing chain assembly used in valvetrain timing on specific Silverado and Sierra engines. Function: Synchronizes crankshaft and camshaft rotation to ensure proper valve timing f ...
MSRP $48.50
$32.31
MSRP $48.50
$32.31
15
Timing Chain GM
GM Description: GM Genuine Parts Timing Chain (Part Number: 55489211) is an OEM timing chain engineered to synchronize crankshaft and camshaft rotation per factory specifications. Type: Engine Component PartsFunction: Synchronizes rotation of the crankshaft and camshafts ...
MSRP $24.51
$18.15
MSRP $24.51
$18.15
16
Timing Belt GM
GM Description: GM Genuine Parts Timing Belt (Part Number: 55493234) is an oil pump drive belt designed to transmit rotation to the oil pump and related components while matching factory timing system requirements. Type: Oil pump / timing beltFunction: Drives the oil pump ...
MSRP $35.93
$23.93
MSRP $35.93
$23.93
17
Engine Timing Camshaft Sprocket GM
GM Description: Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.81
$7.82
MSRP $9.81
$7.82
18
Timing Chain Tensioner GM
GM Description: Silverado, sierra. Camshaft chain. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $27.74
$20.54
MSRP $27.74
$20.54
18
Timing Chain Tensioner GM
GM Description: GM Genuine Parts Timing Chain Tensioner (Part Number: 55508005) is a timing chain tensioner assembly that maintains proper chain tension for engines using injection pump timing chains. Function: Applies and maintains consistent tension on the timing chain ...
MSRP $23.72
$17.57
MSRP $23.72
$17.57
19
Engine Timing Chain Guide GM
GM Description: Silverado, sierra. Injection pump chain. Slack side. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.85
$4.99
MSRP $5.85
$4.99
19
Timing Chain Guide GM
GM Description: GM Genuine Parts Timing Chain Guide (Part Number: 55489219) is a genuine engine component that supports and guides the camshaft timing chain on the slack side to maintain proper chain tension. Application: Camshaft timing chain guide for select Silverado/S ...
MSRP $15.95
$12.72
MSRP $15.95
$12.72
19
Timing Chain Guide GM
GM Description: Silverado, sierra. Camshaft chain. Tension side. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.41
$7.19
MSRP $8.41
$7.19
19
Engine Timing Chain Guide GM
GM Description: GM Genuine Parts Engine Timing Chain Guide (Part Number: 55489213) is a timing chain guide for the right side tension path used on engines with injection pump-driven timing chains. Application: Referenced for Silverado and Sierra injection-pump chain engin ...
MSRP $7.20
$6.14
MSRP $7.20
$6.14
20
Piston Rings GM
GM Notes: Includes: Standard Rings For One Piston.
Description: Silverado, sierra.
MSRP $45.17
$30.10
MSRP $45.17
$30.10
21
Piston GM
GM Notes: Includes: One Standard Piston W/Pin & Piston Rings.
Description: Silverado, sierra.
MSRP $81.64
$54.41
MSRP $81.64
$54.41
22
MSRP $73.46
$48.95
23
F (S)Bearing GM
GM Description: GM Genuine Parts Connecting Rod Upper Bearing (Part Number: 55490517) is an OE connecting rod bearing designed to provide appropriate bearing clearance and support for the connecting rod journal. Manufactured to GM OE tolerances and specifications. Functio ...
MSRP $12.58
$10.01
MSRP $12.58
$10.01
23
Connecting Rod Lower Bearing GM
GM Description: GM Genuine Parts Connecting Rod Lower Bearing (Part Number: 55490523) is an engine rotating assembly bearing designed to support the connecting rod on the crankshaft and maintain proper oil clearance. Backed by General Motors (GM). Function: Lower half bea ...
MSRP $7.20
$6.14
MSRP $7.20
$6.14
24
$817.42
25
Crankshaft Lower Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: Main bearings. Silverado, sierra. Lower. 2.479-2.485. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.26
$4.49
MSRP $5.26
$4.49
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.68
$4.85
MSRP $5.68
$4.85
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$33.16
$33.16
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: Main bearings. Silverado, sierra. Upper. Journal 1 or 7. 2.473-2.479. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.10
$4.34
MSRP $5.10
$4.34
25
Crankshaft Lower Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: Main bearings. Silverado, sierra. Lower. 2.485-2.491. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.54
$4.73
MSRP $5.54
$4.73
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: Main bearings. Silverado, sierra. Upper. Journal 1 or 7. 2.479-2.485. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.86
$5.00
MSRP $5.86
$5.00
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: Main bearings. Silverado, sierra. Upper. Journal 1 or 7. 2.485-2.491. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $6.18
$5.27
MSRP $6.18
$5.27
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.46
$4.66
MSRP $5.46
$4.66
25
Crankshaft Lower Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: Main bearings. Silverado, sierra. Lower. 2.473-2.479. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.46
$4.66
MSRP $5.46
$4.66
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: GM Genuine Parts Crankshaft Upper Bearing (Part Number: 55495259) is an upper main/crankshaft bearing intended for engine rebuild and repair applications. Function: Upper crankshaft/main bearing to support crank journal and maintain oil clearanceApplicatio ...
MSRP $5.26
$4.49
MSRP $5.26
$4.49
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.54
$4.73
MSRP $5.54
$4.73
25
Crankshaft Upper Bearing GM
GM Notes: Includes: Upper Is One Half Shell, Lower is a Complete Set Of 7 Half Shells.
Description: Main bearings. Silverado, sierra. Upper. Journal 2, 3, 5, or 6. 2.485-2.491. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $5.68
$4.85
MSRP $5.68
$4.85
26
Crankshaft Thrust Bearing GM
GM Description: Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $4.65
$3.95
MSRP $4.65
$3.95
27
Rear Main Seal GM
GM Description: GM Genuine Parts Crankshaft Rear Oil Seal (Part Number: 40009072) is a rear main/crankshaft oil seal designed to retain engine oil and prevent leaks at the crankshaft rear area. Function: Seals crankshaft rear area to prevent oil leakage and keep contamina ...
MSRP $19.52
$14.46
MSRP $19.52
$14.46
28
Rear Main Seal Retainer GM
GM Description: GM Genuine Parts Cover (Part Number: 40009454) is an engine component cover assembly for timing chain areas, built to OEM fit and function standards. Type: Engine Component PartsFunction: Protects lower timing-chain components from contaminants and helps r ...
MSRP $113.36
$70.75
MSRP $113.36
$70.75
29
Crankshaft Pulley GM
GM Description: Silverado, sierra. 3.0L diesel. Provides power to the engine accessory drive system for proper engine performance
MSRP $148.64
$92.79
MSRP $148.64
$92.79
30
MSRP $497.87
$310.72
30
Lower Oil Pan GM
GM Description: Silverado, sierra. Lower. 3.0L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $87.32
$58.19
MSRP $87.32
$58.19
31
Oil Pump GM
GM Description: GM Genuine Parts Oil Pump (Part Number: 40009011) is an engine oil pump assembly designed to supply oil pressure and circulation for engine lubrication. Function: Circulates engine oil to bearings, cam, and other components to maintain lubrication and cool ...
$192.77
$192.77
32
Oil Pump Suction 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
$36.41
$36.41
1 This price excludes a refundable manufacturer's core charge. Add the part to your cart to see the core charge.
2 This part contains hazardous materials. Extra shipping costs apply.