This cylinder piston kit is compatible with OLE0 735S, 735T, 740T, 740S, 433BP, 435BP, 440BP, 40, TP74, 8350, 8355, 8400, 8405, and Stark 40 engines.The kit includes a cylinder and piston designed to fit the specified models and is intended for engine rebuilds and replacements.Components are engineered for dimensional accuracy and compatibility with the listed.Installation may require standard mechanical tools and basic mechanical knowledge.