Description:

47mm Big Bore Cylinder Head Valves With Gaskets Replacement for 4 Stroke 139QMB 139QMA GY6 80cc ATV Go Kart Quad Scooter.Non-EGR Engine.. Easy to Install.The Cylinder Head With Gaskets Is An Ideal Replacement for Your Old Or Broken Ones.. The Cylinder Head With High Toughness,Corrosion Resistance,Rustproof And Durable,Support The Piston And Reduce Friction And Leakage,Providing Reliable Performance And Long Life Service..