A-B1691762-AI TAPPET-VALVEOne New Aftermarket Replacement Valve Tappet Fits Briggs and Stratton (B&S) Engines This valve tappet (also called a tappet valve or valve lifter) is a valvetrain component used in Fits Briggs and Stratton small engines. It transfers motion from the camshaft lobe to the pushrod, enabling precise opening and closing of the intake and exhaust valves for proper engine timing and combustion. Worn or damaged tappets can cause valve train noise, misfires,