Premium 39mm Big Bore Cylinder Head Piston Gaskets Rebuild Kit
High-performance gasket kit engineered for 4-stroke GY6 49cc/50cc ATV and scooter engines. Precision-cut from multi-layered steel and composite materials for superior heat resistance and airtight sealing. CNC-machined cylinder head surfaces ensure flawless fitment and optimal compression. Includes all critical gaskets for complete engine rebuilds—head, base, valve cover, and exhaust. Ideal for mechanics and DIY enthusiasts restoring or upgrading 50cc engines. Extends engine life by preventing leaks and maintaining consistent pressure. Bulk pricing available for wholesale buyers—global shipping, unbeatable value. Trusted by professional workshops for reliability under heavy use.