16Pcs GM Gen IV AFM/DOD Hydraulic Roller Lifters, 8 AFM + 8 Standard

This aftermarket set contains sixteen hydraulic roller lifters for the documented GM Gen IV V8 factory AFM/DOD valvetrain configuration. The sales package is recorded as eight AFM-compatible lifters and eight standard lifters, sixteen pieces total. The engine coverage recorded for this lifter family includes 5.3L, 6.0L, and 6.2L applications using the matching cylinder-deactivation valvetrain. The two eight-piece groups serve different positions/functions within the factory AFM/DOD arrangement and are supplied together as one set.

This product supports the recorded factory AFM/DOD lifter configuration; it is not described as an AFM/DOD delete or conversion kit. A camshaft, lifter trays, pushrods, rocker arms, gaskets, head bolts, valley cover, block-off plugs, tuning components, and other valvetrain parts are not included. Recorded references span the AFM and standard hydraulic-roller lifter families used in the package, including 12569256, 12571595, 12619820, 12680871, 12499225, 12576400, and related supersessions. These references identify replacement families and do not represent the set as genuine GM equipment. The sixteen-piece count and factory AFM/DOD configuration distinguish this set from all-standard lifter sets and delete packages.

Features

• Sixteen hydraulic roller lifters total.
• Eight AFM-compatible lifters and eight standard lifters.
• Configured for documented GM Gen IV V8 factory AFM/DOD valvetrains.
• Recorded for matching 5.3L, 6.0L, and 6.2L applications.
• Not an AFM/DOD delete or conversion package.
• Camshaft, trays, pushrods, rockers, gaskets, bolts, valley cover, and unlisted parts are not included.