Replacement for 1p56ymj 1p56fmj 1p56fmj-5 140cc 150cc dirt pit bike atv quad. Made of high-quality aluminum alloy material,through precision machining and heat treatment process,it has excellent resistance to high temperature and corrosion. The sturdy structure is able to withstand high-intensity working environment and ensure stable operation for a long time,providing excellent durability and reliability for your engine. By optimizing the combustion chamber design and intake and exhaust passages,this cylinder head assembly can significantly improve combustion efficiency,thus enhancing the engine's power output.
