Photo 1 of HTRACING 16 Pcs Active Fuel Management AFM DOD Roller Lifters Valve Lifters Hydraulic Compatible with Chevy GMC Cadillac Buick 5.3L 6.0L 2007-12 Replaces 12619820 17122490 12645725 (8+8)

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Photo 1 of HTRACING 16 Pcs Active Fuel Management AFM DOD Roller Lifters Valve Lifters Hydraulic Compatible with Chevy GMC Cadillac Buick 5.3L 6.0L 2007-12 Replaces 12619820 17122490 12645725 (8+8)Photo 2 of HTRACING 16 Pcs Active Fuel Management AFM DOD Roller Lifters Valve Lifters Hydraulic Compatible with Chevy GMC Cadillac Buick 5.3L 6.0L 2007-12 Replaces 12619820 17122490 12645725 (8+8)