GOOFIT Cylinder Head with Valve Replacement For 4 Stroke GY6 49cc 50cc Scooter Moped 139QMA 139QMB Engine Part

1. Dimensions: intake valve 18.6 mm, exhaust valve 16 mm 2. Suitable for 4-stroke GY6 49cc 50cc scooter moped ATV (read installation information description) 3. Brand new cylinder head, installed valve/seal, also suitable for 100cc large cylinder diameter 4. 100% true HD lens, good quality and durable. Precision manufacturing, stable performance, long service life, can be a perfect substitute for your products, easy to install. 5. Reminder/Note: To ensure that you are buying the correct product, please read the product description or picture size carefully. Please make sure that these parts are suitable for your specific model. Thank you for your attention. If you have any questions or need any help, please contact us before or after purchase. We will try our best to help you solve