Side Cover Gasket for Rotax Engines. This gasket is designed to fit between the side cover and the main case of Rotax Max Evo engines.
Made of a thin and fibrous gasket material, this gasket keeps oil and fluids inside the crankcase, which otherwise would be a porous metal-on-metal surface from the aluminum cover and the crankcase housing.
Each gasket sold separately. This is part #16 on the diagram.