Benefast set of MDS Hydraulic roller valve. K7d7X2KU1,

Benefast Set of MDS Hydraulic Roller Valve Lifters Fits JEE-p 5.7L 6.4L HEMI 2005-2017 Part# 53021726AE 53021726AD for Multi-Displacement System Exhaust & Inlet Tappets
Brand: Benefast
$183.99
Size: Set of 4MDS
Hydraulic tappet, also called valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. It helps get rid of the need for combustion engine to have mechanical clearance in the engine’s valve train, to keep the valve from being held open and thus destroyed as the valve train goes through its process of thermal expansion. In effect, valve lifter keeps the valve healthy and protects from an engine’s normal thermal expansion process.
Hydraulic lifter helps to ensure less engine