The cylinder head cover and valve cover of the GY6 49cc/50cc 139QMA/139QMB engine are compatible with scooters, mopeds and motorcycles.--DTEKGAZ

The GOOFIT GY6 cylinder head cover (also known as a valve cover or cylinder head cover) is a precision sealing and protective part specifically designed for 49cc and 50cc engines of the GY6 platform (common models such as the 139QMA and 139QMB). Manufactured to original specifications, it fits perfectly onto the cylinder head mounting surface. It effectively seals the valve seat, preventing oil splashing and leaks. Simultaneously, it protects the camshaft, rocker arms, and other valve train components from dust and moisture. It is the ideal solution for addressing cylinder head oil leaks, performing engine maintenance, or replacing a damaged original cover. Its main advantage is its perfect compatibility with the original parts. Specifically designed for GY6 49/50cc engines (139QMA/MB), it features identical mounting holes, an identical internal shape, and oil passage connections to the original part, ensuring a perfect fit. Superior Seal: This product features a precision-molded, one-piece gasket or is equipped with a high-quality, separate gasket. This ensures a perfect fit on the cylinder head contact surface, resulting in a durable and reliable seal. Reinforced Materials: Made from high-strength aluminum alloy or high-temperature resistant engineering plastic, this product is lightweight, deformation-resistant, and withstands the high temperatures and oil conditions found in the engine over the long term. Protection of Critical Components: As an outer valve block cover, it effectively protects internal components such as the camshaft, rocker arms, and valve springs, preventing the ingress of foreign matter and excessive wear. Easy Installation: This complete outer cover directly replaces the old parts, allowing for quick and easy installation. Compatible Engine Models (Base Part): Engine Platform: GY6 Series Horizontal Engines; Compatible Displacement: 49 cc, 50 cc; Special Engine Models: 139QMA, 139QMB, and other derivatives with the same cylinder head design.