Ensure a perfect seal and maximum compression with the Universal Parts GY6 Cylinder Head Gasket Kit. Specifically designed for the standard 57.4mm bore 150cc engine, this comprehensive 5-piece kit provides every gasket required for a top-end rebuild. Whether you are performing a routine valve adjustment or installing a fresh cylinder, these gaskets are engineered to withstand the high thermal stress and combustion pressures of the 157QMJ engine family.
This kit is a direct fit for GY6 125cc and 150cc (QMI/QMJ 152/157) 4-stroke engines found in:
Mechanic's Note: Gaskets are "one-time use" items—never attempt to reuse old gaskets during a rebuild.
Installation Tip: Ensure both the cylinder and head surfaces are perfectly clean and free of old gasket material before assembly.
Pro Tip: Always use a Torque Wrench to tighten your head studs in a "star pattern" to ensure even pressure and prevent the head from warping!
SKU: 137-02 Vendor: MotoTec USA USA, LLC
