This is the stock replacement rocker cover (valve cover). This is the part at the top of the engine, it is held in place by 2 screws (not included). Rocker cover is black in color with the words OS Four Stroke in silver. INCLUDES: One rocker cover. COMMENTS: This is for the OS 91FS-P. Screws are available in screw set OSMG8814. 10-17-97 JBROS EnginesPart OSM45904210