## Complete Cylinder Head 39.00mm 50cc without EGR 139QMB/QMA (GY6 50) 4T This complete cylinder head with a diameter of 39.00mm is the perfect solution for your scooter with a 139QMB/QMA (GY6 50) 4T engine. Made of high-quality aluminum, it ensures reliability and long service life. The set includes the cylinder head, valves, gaskets, and springs, ready for installation. ### Increased Performance The cylinder head has been designed to increase engine performance. The enlarged combustion chamber allows for better utilization of the fuel-air mixture, which translates into a noticeable improvement in performance. It is ideal both as a replacement for the original cylinder head and as an element of engine tuning. ### Without EGR for Better Power This cylinder head is designed for engines without an EGR system (exhaust gas recirculation). The lack of EGR contributes to increased power and improved engine dynamics. ### Highest Quality Workmanship The cylinder head is made of high-quality aluminum, which guarantees its durability and resistance to high temperatures. Precise workmanship and careful selection of components ensure a perfect fit and trouble-free operation. ### Technical Parameters: * Capacity: 50cm³ * Piston Diameter: 39.00mm * Without EGR