The VERTEX TopEnd Piston Kit for KAWASAKI Pro Replica is engineered to withstand the high cylinder pressures typical of 4-stroke engines. These pistons are crafted from high-quality forged aluminum alloy (2618) to endure the internal pressures of the engine. Each VERTEX piston is coated with MOS2 to reduce wear, ensuring longevity and reliability. Known for its excellence, VERTEX is an OEM supplier for some of the largest motorcycle manufacturers and is trusted by many factory teams in the MXGP circuit for its high performance. This comprehensive piston kit saves both time and money, including everything necessary for a piston replacement: a piston kit with a cylinder gasket set and a timing chain. VERTEX offers two variants for the 4-stroke engine: the Pro Replica, a forged piston that matches the original form, and the Pro HC, a specially forged piston designed for higher compression and enhanced performance.