Stop common oil drain plate leaks dead in their tracks with the aid of AMS 3304 silicone seals from Wolfsburg West. Unlike common cork or neoprene seals that crack and deform over time, these aerospace/mechanical grade silicone seals are 100% reusable and are guaranteed not to leak. One set of seals is all you need to protect your engine for its entire life. Includes two AMS 3304 silicone drain plate seals, 6 copper washers and 1 drain plug washer. Fits 40hp-1600 cc engines.