GM Gen4 5.3L AFM LMG / LC9 / LY5 Engine Overhaul Kit | AFM Camshaft, Lifters & Full Head Gasket Set
Vehicle Fitment
This kit fits GM Gen4 5.3L AFM V8 engines (LMG / LC9 / LY5) for model years 2007–2014
Chevrolet
Avalanche 5.3L 2007–2013
Silverado 1500 Classic 5.3L 2007
Silverado 1500 5.3L 2007–2013
Suburban 1500 5.3L 2007–2014
Tahoe 5.3L 2007–2014
Trailblazer EXT 5.3L 2007–2008
Buick
Rainier 5.3L 2007
LaCrosse 5.3L 2008–2009
GMC
Envoy 5.3L 2007–2009
Sierra 1500 5.3L 2007–2013
Yukon 5.3L 2007–2014
Yukon XL 1500 5.3L 2007–2014
OEM Reference Replacement Part Numbers
AFM Camshaft
12625436, 12569525, 11561283, MC1394
Cylinder Head Bolts
ES72220, HB230, HB33021
MLS Cylinder Head Gasket
26190PT, 12573949, 12589226, 12609730
Complete Head Gasket Set
HS26190PT2, C325HSB, HS54442A, HS54442
OEM AFM Hydraulic Lifters
12619820, 12632143, 12639516, 12648846, 17122490, 12564012, 12569256, 12571595, 12645725, 12576400
Lifter Guide Trays
12669185, 12669184, 12571608, 8125716080
Package Includes
1 Factory-Spec AFM Retention Camshaft
1 Full MLS Multi-Layer Steel Cylinder Head Gasket Set
16 Valve Stem Seals
2 Intake Manifold Gaskets
2 Exhaust Manifold Gaskets
30 High-Tensile Cylinder Head Bolts
All components match the display of the main product image.
Purchase Notice
Please carefully cross-check OEM part numbers, vehicle model, production year and engine code (LMG / LC9 / LY5) before placing orders to confirm perfect compatibility.
Product Advantages
This all-in-one top-end repair kit is engineered to retain the original factory AFM/DOD cylinder deactivation fuel-saving system for GM Gen4 5.3L LS V8 engines. The OEM-spec AFM camshaft and matched hydraulic AFM lifters directly resolve common factory faults including cam lobe wear, cold-start valve tick, collapsed lifters, random cylinder misfire codes, rough idle and power loss caused by aging valve train components.
- MLS multi-layer steel head gaskets withstand extreme high temperature and pressure, effectively blocking coolant, engine oil and vacuum leakage during engine rebuild
- High-tensile torque-spec head bolts deliver uniform clamping force to maintain long-term cylinder head sealing stability
- Complete manifold gaskets and valve stem seals cover all upper engine sealing demands without extra parts purchasing
All valve train and sealing components adopt OEM-grade wear-resistant alloy and heat-resistant composite materials, fully meeting full top-end overhaul requirements for GM pickup trucks and full-size SUVs. Integrated core repair parts drastically shorten sourcing time for professional repair shops and DIY engine rebuilders.
Warranty Policy
1-Year limited warranty against manufacturing defects. Our dedicated customer service team provides pre-sales engine code matching consultation and post-installation technical support.
| Year | Make | Model | Engine |
|---|---|---|---|
| 2007-2013 | Chevrolet | Avalanche | 5.3L |
| 2007 | Chevrolet | Silverado 1500 Classic | 5.3L |
| 2007-2013 | Chevrolet | Silverado 1500 | 5.3L |
| 2007-2014 | Chevrolet | Suburban 1500 | 5.3L |
| 2007-2014 | Chevrolet | Tahoe | 5.3L |
| 2007-2008 | Chevrolet | Trailblazer EXT | 5.3L |
| 2007 | Buick | Rainier | 5.3L |
| 2008-2009 | Buick | LaCrosse | 5.3L |
| 2007-2009 | GMC | Envoy | 5.3L |
| 2007-2013 | GMC | Sierra 1500 | 5.3L |
| 2007-2014 | GMC | Yukon | 5.3L |
| 2007-2014 | GMC | Yukon XL 1500 | 5.3L |
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