Winderosas wide range of high-tech materials provide unmatched reliability and performance for the demanding needs of todays power plants Fit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and Xenoah Designed to replace OEM gaskets exactly Many kits now include coated stainless steel head gaskets High-performance oil seals have a high-chromium-content stainless steel alloy spring for maximum performance and corrosion resistance Order only what you need for specific maintenance projects Available as complete sets or full top end sets Sets contain ALL gaskets necessary for professional engine rebuilding, including high-performance oil seals Include all head, base, intake, exhaust gaskets and O-rings, plus crankshaft end seals and power valve gaskets The most complete gasket sets available All professional sets include power valve gasket, O-ring or oil seal Made in the U.S.A.