This top end rebuild kit includes a 41mm bore piston, head and base gaskets, and piston pin bearing, offering a complete solution for restoring 50cc two-stroke engines on various Kawasaki and Suzuki models. Manufactured to meet OEM specifications, it ensures reliable performance and engine durability. Features Piston kit with head and base gaskets Includes bearing, piston pin, circlips, and ring set Unmatched reliability and performance from high-tech materials Manufactured to exacting standards so the engine can be rebuilt with total confidence Direct OEM replacement Easy to install; professional installation recommended if unsure Cross-Reference OEM Part Numbers Piston (STD): 12110-35613, 12110-43000 Ring Set, Piston (STD): 12140-43000, 12140-16B10 Pin, Piston: 12151-02000, 12151-04700 Bearing, Piston Pin: 09263-12015, 09263-12023 Circlip: 09381-12001 Gasket, Cylinder Head: 11141-04000 Gasket, Cylinder: 11241-04000, 11241-04010 Part No: 56-W826+000.DR Vehicle Fitments Kawasaki KFX50 (All Years) Kawasaki KDX50 2003–2005 Suzuki LT50 (All Years) Suzuki FZ50 1979–1983 Suzuki FA50 1950–2021 Suzuki JR50 1950–2021