Manufacturer Part Number: 12499225,12595365,HL124,HT2148,12585328,PR614S,12482063,12499224,12586484,12499225,12595365,HL124,HT2148,PR614S.
Applicaton: This pushrod and lifter set fits the following 1997-2016 GM applications with the LS 4.8L, 5.3L and 5.7L V8 engines. If your application came with out the Active Fuel Management your engine would use this style of lifter. If your engine come with it you would need 8 of this lifter and 8 of the AFM/DOD "deactivation on demand lifter.
Fuction: Hydraulic lifter helps to ensure less engine noise and longer reliability, due to less wear and tear. A faulty hydraulic lifter will usually result in the rocker arm, valve tip and push rod also going bad if left unattended. If an engine with hydraulic lifters is noisy, then either the internal spring has lost some tension or the check ball is not sealing or allowing the oil to fill the cavity. For all practical purposes, the tappet needs to be replaced.
Materials: The Lifters Guide Trays Pushrods Set is made with durable materials and precision engineering to meet strict quality standards, ensuring reliable and long-lasting performance.