Engine for 2021 GMC Sierra 1500
No.
Part # / Description / Price
Price
N/A
Camshaft Phaser Magnet 
GM
GM Description: Genuine GM OEM Camshaft Phaser Magnet (MPN: 12675031) for 5.3L, 6.2L, and 6.6L gas engines in select GM trucks and SUVs including Silverado, Sierra 2500 HD, Sierra 3500 HD, Express, and Savana models, plus Corvette applications. This critical engine compon ...
MSRP $32.87
$22.34
MSRP $32.87
$22.34
N/A
Control Valve GM
GM Description: Upgrade your Silverado, Sierra, Escalade, Yukon XL, or CT5 with this Genuine GM OEM Control Valve (MPN: 12731637), engineered to regulate fluid pressure and optimize transmission performance across select heavy-duty and luxury GM vehicles. This authentic G ...
MSRP $39.67
$25.76
MSRP $39.67
$25.76
N/A
Timing Chain Tensioner Kit with Gasket, Retainers, and Bolts GM
GM Description: The Genuine GM OEM Timing Chain Tensioner Kit (MPN: 12686368) is engineered to maintain precise engine timing and optimal performance across select GM vehicles including the Express, Savana, Silverado, and Sierra. This complete tensioner assembly includes ...
MSRP $53.90
$34.99
MSRP $53.90
$34.99
N/A
RTV Silicone Sealant - 300 mL 2 GM
GM Description: Genuine GM OEM RTV Silicone Sealant (MPN: 19369831) is a premium one-part, room-temperature vulcanizing liquid gasket engineered for high-performance sealing applications across GM trucks and specialty vehicles. This 300 mL tube of RTV silicone delivers re ...
Not For Sale
Not For Sale
N/A
Balancer Chain Adjuster Guide GM
GM Description: The GM Balancer Chain Adjuster Guide (MPN: 12632728) is an authentic OEM engine component engineered to maintain proper timing chain tension in your vehicle's engine. This genuine General Motors part ensures optimal engine performance and longevity by regu ...
MSRP $37.99
$24.66
MSRP $37.99
$24.66
N/A
Engine 1 GM
GM Notes: Does Not Include: Exhaust Manifolds or Engine Electrical.
Description: Upgrade your Silverado or Sierra with the Genuine GM OEM Engine (MPN: 19434546), engineered to deliver reliable performance and longevity for your truck. This authentic General Motors engine replacement is built to factory specifications, ensuring seamless ...
MSRP $6,518.51
$6,394.66
MSRP $6,518.51
$6,394.66
N/A
Valve GM
GM Description: Genuine GM OEM Valve (MPN: 40009556) engineered for premium performance in Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, Tahoe, Cadillac Escalade ESV, and GMC Yukon XL models equipped with 3.0L diesel engines. This authentic General Motors replaceme ...
MSRP $49.29
$32.01
MSRP $49.29
$32.01
N/A
Mount GM
GM Description: Genuine GM OEM Mount (MPN: 85806751) is engineered to provide secure suspension and drivetrain support for premium GM trucks and SUVs including the Silverado, Sierra, Tahoe, Escalade, Suburban, and Yukon models. This OEM replacement mount is designed for b ...
MSRP $157.79
$99.65
MSRP $157.79
$99.65
N/A
Mount GM
GM Description: Silverado, sierra. 6.2L. Rwd. Tahoe. Suburban. Right. All. Escalade. Yukon. 4.3L.
MSRP $141.19
$89.19
MSRP $141.19
$89.19
1
Cylinder Head GM
GM Description: Genuine GM OEM Cylinder Head (MPN: 12677840) is a factory-original engine component engineered for optimal combustion chamber performance and valve operation on select Chevrolet Silverado, GMC Sierra, Ford Express 2500, Savana 3500, Express 3500, and Savan ...
MSRP $820.81
$509.97
MSRP $820.81
$509.97
2
Cylinder Head Gasket GM
GM Description: The GM OEM Cylinder Head Gasket (MPN: 12632968) is an essential engine sealing component engineered to prevent coolant and oil leaks between the cylinder head and engine block on select GM vehicles including Express, Savana, Silverado, and Sierra models. T ...
MSRP $156.50
$98.84
MSRP $156.50
$98.84
3
F Cover GM
GM Description: 2018-25. Express 3500. Right. Savana 3500. Express 2500. Savana 2500. Silverado, sierra.
MSRP $84.59
$54.93
MSRP $84.59
$54.93
3
Valve Rocker Arm Cover with Ignition Coil and Module GM
GM Description: The Genuine GM OEM Valve Rocker Arm Cover with Ignition Coil and Module (MPN: 12713669) is engineered to meet General Motors' exacting specifications for reliable engine performance and proper ignition system operation. This OEM part integrates critical ig ...
4
Valve Cover Gasket GM
GM Description: Genuine GM OEM Valve Cover Gasket (MPN: 12630883) for 4.3L, 5.3L, and 6.2L engines in 2018-2020 Chevrolet Express, GMC Savana, Chevrolet Silverado, and GMC Sierra trucks and vans. This authentic General Motors replacement gasket seals the valve cover to pr ...
MSRP $10.70
$7.27
MSRP $10.70
$7.27
5
Intake Valve GM
GM Description: # Intake Valve
Upgrade your engine performance with the Genuine GM OEM Intake Valve (MPN: 12619825), engineered for precise fuel and air mixture control in your vehicle's combustion chamber. This original equipment manufacturer part is designed for direct ...
MSRP $11.67
$7.94
MSRP $11.67
$7.94
6
Exhaust Valve GM
GM Description: Genuine GM OEM Exhaust Valve (MPN: 12678745) engineered for precise engine performance on select GM trucks and SUVs including Silverado, Sierra, Tahoe, Suburban, Yukon XL, and Express/Savana vans in standard and 2500/3500 configurations. This factory exhau ...
MSRP $14.40
$9.77
MSRP $14.40
$9.77
7
Valve Seals GM
GM Description: # Product Description
Genuine GM OEM Valve Seals (MPN: 12689007) are precision-engineered engine components designed to prevent oil leakage and maintain proper combustion chamber sealing in select GM vehicles. These original equipment manufacturer seals a ...
MSRP $9.69
$6.58
MSRP $9.69
$6.58
7
Valve Seals GM
GM Description: # Product Description
Genuine GM OEM Valve Seals (MPN: 12689006) are precision-engineered sealing components designed to prevent oil leakage and maintain proper compression in your vehicle's engine. These factory-original valve seals are essential for mai ...
MSRP $8.86
$6.02
MSRP $8.86
$6.02
8
Valve Springs GM
GM Description: Genuine GM OEM Valve Springs (MPN: 12728733) are precision-engineered components designed to maintain proper valve operation and engine performance across select GM full-size SUVs and trucks. This factory-original valve spring is compatible with Chevrolet ...
MSRP $7.93
$5.39
MSRP $7.93
$5.39
9
Valve Spring Cap GM
GM Description: # Valve Spring Cap - GM OEM Part 10166344
Engineered by General Motors, the OEM Valve Spring Cap (MPN: 10166344) is a precision-manufactured engine component that maintains proper valve spring tension and alignment in select GM vehicles. This genuine GM p ...
MSRP $9.31
$6.32
MSRP $9.31
$6.32
10
Valve Locks GM
GM Description: GM Genuine Valve Locks (MPN: 10166345) are precision-engineered engine components designed to secure valve stems in place and maintain proper valve operation across select GM vehicles. These OEM valve locks are essential for preventing valve movement and e ...
MSRP $7.62
$5.17
MSRP $7.62
$5.17
11
Rocker Arms GM
GM Description: Genuine GM OEM Rocker Arms (MPN: 12619829) are engineered valve train components designed to transfer camshaft motion to pushrods and valves, ensuring precise engine operation on select GM vehicles. This authentic General Motors part maintains factory perf ...
MSRP $26.58
$18.06
MSRP $26.58
$18.06
12
Valve Push Rod GM
GM Description: The GM OEM Valve Push Rod (MPN: 12619828) is an essential engine component engineered to transfer motion from the camshaft to the valve lifters in your vehicle's powertrain. This genuine General Motors part is designed for optimal performance and durabilit ...
MSRP $9.35
$4.43
MSRP $9.35
$4.43
13
Engine Valve Lifter GM
GM Description: # Engine Valve Lifter
The GM OEM Engine Valve Lifter (MPN: 12740071) is a genuine General Motors replacement component designed to maintain proper valve timing and engine performance in select GM vehicles. This critical engine part ensures consistent hydra ...
MSRP $85.60
$55.57
MSRP $85.60
$55.57
13
Valve Lifters GM
GM Description: GM OEM Valve Lifter 12698945 for Gen V LT1 Engines - Genuine Factory Part
Genuine GM OEM valve lifter part number 12698945 is an essential engine component engineered to transmit camshaft motion to your vehicle's valves, ensuring precise valve timing and ...
MSRP $49.49
$32.13
MSRP $49.49
$32.13
14
Camshaft GM
GM Description: # Product Description
The Genuine GM OEM Camshaft (MPN: 19432226) is a critical engine component designed to control valve timing and lift in select GM vehicles, including Chevrolet Silverado and GMC Sierra pickup trucks. This factory-original camshaft en ...
MSRP $638.52
$396.72
MSRP $638.52
$396.72
15
Engine Camshaft Bearing GM
GM Notes: Includes: All/Set Of 5 Bearings.
Description: Genuine GM OEM Engine Camshaft Bearing (MPN: 12686894) is engineered to precise specifications for optimal valve timing and engine performance across multiple full-size GM trucks and SUVs. This complete bearing set fits Chevrolet Tahoe, Suburban, Silverado ...
MSRP $206.60
$128.95
MSRP $206.60
$128.95
16
Front Crankshaft Engine Oil Seal GM
GM Description: The GM Genuine Front Crankshaft Engine Oil Seal (MPN: 12634614) is an OEM replacement engineered to prevent oil leaks at the crankshaft openings on select GM vehicles. This authentic General Motors part delivers the reliable sealing performance your engine ...
MSRP $24.04
$16.33
MSRP $24.04
$16.33
17
Engine Timing Cover GM
GM Description: Protect your engine's vital components with the Genuine GM OEM Engine Timing Cover (MPN: 12691696), engineered for 2018-2025 GM full-size vans and trucks including Express 2500, Express 3500, Savana 2500, Savana 3500, Silverado, and Sierra models equipped ...
MSRP $96.10
$60.70
MSRP $96.10
$60.70
18
Crankshaft Sprocket GM
GM Description: # Crankshaft Sprocket
The GM Genuine Crankshaft Sprocket (MPN: 12713934) is an essential engine timing component engineered to synchronize crankshaft rotation with camshaft operation across select GM vehicles. This OEM part delivers precise timing control ...
MSRP $40.85
$26.53
MSRP $40.85
$26.53
19
Timing Chain GM
GM Description: The GM OEM Timing Chain (MPN: 12646387) is a precision-engineered engine component designed to synchronize crankshaft and camshaft rotation, ensuring your engine's intake and exhaust valves operate at exactly the right moments for optimal performance. This ...
MSRP $110.91
$70.05
MSRP $110.91
$70.05
20
Camshaft Phaser GM
GM Description: GM Genuine OEM Camshaft Phaser (MPN: 12689341) is a precision-engineered valve timing component designed for Chevrolet Silverado, GMC Sierra, and Corvette models. This authentic General Motors part optimizes camshaft timing and engine performance while mee ...
MSRP $206.39
$128.82
MSRP $206.39
$128.82
21
Engine Balance Shaft Sprocket GM
GM Description: The Engine Balance Shaft Sprocket (MPN: 12632725) is a genuine GM OEM idler sprocket engineered to maintain precise crankshaft timing and engine balance on select Chevrolet and GMC trucks and vans. This critical drivetrain component is designed for models ...
MSRP $92.82
$58.62
MSRP $92.82
$58.62
22
Balancer Shaft Driven Sprocket GM
GM Description: The GM OEM Balancer Shaft Driven Sprocket (MPN: 12690616) is a precision engine component engineered to regulate crankshaft balance and optimize performance in select GM trucks and vans. This genuine General Motors part ensures proper synchronization of th ...
MSRP $58.89
$38.24
MSRP $58.89
$38.24
23
Engine Balancer Shaft Assembly GM
GM Description: The GM OEM Engine Balancer Shaft Assembly (MPN: 12653449) is an authentic General Motors engine component engineered to optimize crankshaft balance and reduce vibration in your vehicle's engine. This genuine GM part ensures proper engine performance and lo ...
MSRP $248.12
$154.87
MSRP $248.12
$154.87
24
Engine Balance Shaft Chain GM
GM Description: The Engine Balance Shaft Chain (MPN: 12632727) is a genuine GM OEM replacement part engineered to maintain precise engine timing and reduce vibration in select GM truck and van models including Chevrolet Silverado, GMC Sierra, Chevrolet Express, and GMC Sa ...
MSRP $71.37
$46.33
MSRP $71.37
$46.33
26
Piston Rings GM
GM Notes: Includes: Standard Rings For One Piston.
Description: Upgrade your engine performance with the Genuine GM OEM Piston Rings (MPN: 12685186), engineered for reliable compression and oil control in GM trucks and vans. This original equipment manufacturer part is designed for Chevrolet Silverado, Sierra, Express, ...
MSRP $34.51
$23.46
MSRP $34.51
$23.46
27
Driver Side Engine Piston Kit GM
GM Notes: Includes: One Piston & Pin.
Description: The Driver Side Engine Piston Kit (MPN: 12675714) is a genuine GM OEM engine component engineered to deliver reliable performance in your vehicle's combustion chamber. This left-side piston assembly, complete with piston pin, is specifically designed for G ...
MSRP $79.95
$51.92
MSRP $79.95
$51.92
27
Passenger Side Engine Piston Kit GM
GM Notes: Includes: One Piston & Pin.
Description: GM Genuine OEM Passenger Side Engine Piston Kit (MPN: 12658181) is engineered and precision-manufactured to meet General Motors' exacting performance standards. This authentic engine piston kit is designed for optimal combustion efficiency and durability i ...
MSRP $293.98
$183.49
MSRP $293.98
$183.49
27
Driver Side Engine Piston Kit GM
GM Notes: Includes: One Piston & Pin.
Description: The GM OEM Driver Side Engine Piston Kit (MPN: 12658180) is a genuine engine component engineered to restore proper combustion and compression in your vehicle's cylinder. This authentic General Motors part delivers factory-specification performance and rel ...
MSRP $294.10
$183.54
MSRP $294.10
$183.54
27
Passenger Side Engine Piston Kit GM
GM Notes: Includes: One Piston & Pin.
Description: The GM OEM Passenger Side Engine Piston Kit (MPN: 12656878) is a genuine General Motors engine component engineered for optimal performance and reliability in Chevrolet Express, Savana, Silverado, and GMC Sierra models. This complete piston assembly includ ...
MSRP $81.67
$53.02
MSRP $81.67
$53.02
28
Engine Connecting Rod GM
GM Description: The GM Genuine Engine Connecting Rod (MPN: 12648238) is an essential internal engine component engineered to transfer power from the piston to the crankshaft in select GM vehicles. This OEM connecting rod assembly includes factory connecting rod bolts and ...
MSRP $75.78
$49.19
MSRP $75.78
$49.19
29
Connecting Rod Bearing GM
GM Notes: Includes: One Standard Upper & Lower Bearing For One Connecting Rod.
Description: The Genuine GM OEM Connecting Rod Bearing (MPN: 12656818) is a critical engine component engineered to maintain proper lubrication and smooth operation between the connecting rod and crankshaft. This authentic General Motors part is specifically designed f ...
MSRP $13.17
$8.94
MSRP $13.17
$8.94
30
Crankshaft GM
GM Description: Upgrade your truck's engine performance with this Genuine GM OEM Crankshaft (MPN: 12691777), the factory-original component engineered for Silverado and Sierra models. This critical engine part converts reciprocating motion into rotational power, deliverin ...
MSRP $770.40
$478.75
MSRP $770.40
$478.75
31
Main Bearings GM
GM Notes: Includes: Standard Upper, Lower, & Thrust Bearings.
Description: # Product Description
Upgrade your engine's performance with the genuine GM OEM Main Bearings (MPN: 12729654), the critical engine component designed to support and lubricate your crankshaft for optimal reliability. These OEM main bearings are engineered ...
MSRP $75.74
$49.18
MSRP $75.74
$49.18
32
Crankshaft Rear Oil Seal GM
GM Description: Genuine GM OEM Crankshaft Rear Oil Seal (MPN: 12665076) is engineered to prevent engine oil leaks by creating a secure seal at the crankshaft's rear end on select GM trucks and SUVs including Tahoe, Yukon, Escalade, Suburban, Silverado, Sierra, Express, an ...
MSRP $44.52
$28.91
MSRP $44.52
$28.91
33
Rear Main Seal Retainer GM
GM Description: # Rear Main Seal Retainer - MPN 12705663
Genuine GM OEM Rear Main Seal Retainer (MPN: 12705663) is an essential engine sealing component designed to secure and support the rear main seal in select General Motors vehicles. This critical OEM part prevents o ...
MSRP $144.75
$91.42
MSRP $144.75
$91.42
34
Crankshaft Balancer GM
GM Description: The Genuine GM OEM Crankshaft Balancer (MPN: 12680364) is engineered to maintain engine balance and reduce vibration across 5.3L, 6.2L, and 6.6L gas engines. This authentic General Motors part delivers factory-specification performance for 2018-2020 Chevro ...
MSRP $137.85
$87.08
MSRP $137.85
$87.08
35
Engine Oil Pan GM
GM Description: The Genuine GM OEM Engine Oil Pan (MPN: 12708453) is engineered to contain and manage engine oil in select Chevrolet and GMC trucks, including Silverado and Sierra models with 4.3L, 5.3L, and 6.2L engines. This critical component ensures proper oil circula ...
MSRP $326.14
$203.56
MSRP $326.14
$203.56
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.