This is a used OEM 2010–2013 GMC Sierra 1500 5.3L engine for sale, sourced from a properly maintained donor truck and handled carefully after removal. This 2012 GMC Sierra 5.3L LMG V8 engine has 58,432 miles and is a practical replacement option for owners who need a clean factory-spec Sierra 1500 5.3L LMG motor with fitment, mileage, and inspection details clearly listed before purchase.
- Removed from a running donor GMC Sierra
- Stored indoors under protected conditions after removal
- No visible major external damage noted during inspection
This engine is compatible with select 2010, 2011, 2012, and 2013 GMC Sierra 1500 models equipped with the 5.3L LMG gasoline V8 and VIN 0 in the eighth position. It can be used as an OEM replacement when the complete VIN, trim level, drivetrain, transmission, active fuel management configuration, emissions equipment, wiring connections, sensors, included accessories, and interchange number match the vehicle.
Before being listed, this used GMC engine was evaluated to confirm smooth starting, stable operation, and dependable overall mechanical condition.
- Compression checked for consistency across all eight cylinders
- Oil and coolant leak areas inspected before shipment
- Starting response and idle stability evaluated during testing
- No abnormal internal engine noise observed
A 6-month warranty is included, with an option to extend coverage up to 1 year on eligible units for added assurance. Verifying the VIN 0 eighth digit, LMG engine identification, drivetrain, transmission, AFM setup, emissions configuration, wiring, sensors, accessories, and interchange number before purchase is recommended to ensure proper fitment. Assistance is available if you need help confirming the correct match.
Key Specifications
Engine Type: 5.3L Naturally Aspirated V8 Gasoline
Engine Code: LMG
Mileage: 58,432 miles
Compatibility: GMC Sierra 1500 2010–2013, VIN 0 in the 8th position
Fuel System: Sequential electronic fuel injection
Induction: Naturally aspirated
Interchange: 300-15453
Performance: Smooth V8 power with dependable torque and Active Fuel Management
Testing: Compression, leak, startup, idle, and operating-noise checks completed
Condition: A-grade used OEM engine
Storage: Indoor, protected pallet storage
Warranty: 6-month warranty, extendable up to 1 year on eligible units
Shipping: Fast, secure freight delivery to commercial and residential addresses


















