MIDWEST MOTORS

DRIVING THE HEARTLAND • EST. 2024

High-Performance Valvetrain Restoration

Engine ticking or loss of power? Restore your GM V8's performance with our premium AFM (Active Fuel Management) / DOD (Displacement on Demand) Hydraulic Roller Valve Lifters. These lifters are designed to meet or exceed OEM specifications, specifically engineered to handle the high-cycle demands of deactivating cylinders in GM's Gen IV LS-series engines.

Technical Specifications

• Part Type: Hydraulic Roller Valve Lifter (AFM/DOD Compatible)
• Interchange Number: 12645725, 12571595, 12619820, 17122490
• Body Diameter: 0.842 in.
• Material: High-Grade Steel Alloy
• Configuration: Designed for cylinder deactivation (AFM) systems

Primary Fitment Applications

Compatible with the following V8 5.3L, 6.0L, and 6.2L engines:

• Chevrolet: Silverado 1500 (2007-2013), Tahoe/Suburban (2007-2014), Avalanche (2007-2013), Impala (2007-2009)
• GMC: Sierra 1500 (2007-2013), Yukon / Yukon XL (2007-2014), Envoy (2005-2009)
• Cadillac: Escalade (2007-2014)
• Buick: Lacrosse (2008-2009), Rainier (2005-2007)

Professional installation is highly recommended. It is standard practice to replace all lifters and inspect the camshaft when one lifter fails in an AFM system.