A-B1690910-AI COVER-ROCKEROne New Aftermarket Replacement Rocker Cover Fits Briggs and Stratton (B&S) Small Engines This aftermarket replacement rocker cover fits a wide range of Fits Briggs and Stratton small gasoline engines used in lawn mowers, riding tractors, and outdoor power equipment. The rocker cover serves as a protective housing for the rocker arms and valve train assembly, seals the top of the engine to contain oil, and helps prevent contaminants from entering the