Piston Kit 39mm for Baja 50cc ATV Chinese ATV Parts, Baja ATV Parts. Baja Engine Piston Kit - 50cc engines. Piston measures approximately 39mm in diameter and uses a 13mm piston pin. Very common 50cc piston used in the Chinese engines. Many popular named Chinese ATVs use this same engine piston. Many other China ATV manufacturers also use this Chinese engine piston in dirt bikes, go karts, mini-choppers and more.
Piston Kits ship with rings, piston, pin and clips.
For the gaskets needed to complete the job - Enter the key words (top end set) in the search box above.
We also have an available Chinese ATV Repair Manual with step by step instructions for installing this kit complete with timing mark instructions and bolt torque specifications. | 
