{"product_id":"47mm-gy6-50cc-139qmb-piston-kit","title":"47mm GY6 50cc (139QMB) Piston Kit","description":"\u003ch2\u003e47mm Piston Kit for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis 47mm piston kit is designed for 50cc QMB139 4-stroke engines. It includes all necessary components for a complete replacement, including the piston, rings, piston pin, and circlips. This part is one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e typically swapped out during engine maintenance or performance upgrades. It ensures proper engine function and longevity when properly installed.\u003c\/p\u003e\u003ch3\u003eComponent Overview\u003c\/h3\u003e\u003cp\u003eThe kit features a piston with an outer diameter of 47mm and a total height of 34.4mm. Its compression height measures 17.25mm, while the wrist pin diameter is 13mm and the wrist pin length is 36.8mm. These dimensions are important for achieving the correct fit and performance in your engine.\u003c\/p\u003e\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\u003cp\u003eReplacing the piston in your GY6 50cc engine is a straightforward process for those familiar with scooter repairs. Ensure that all components are compatible and that you have the necessary tools to perform the installation. A new piston is often needed when the engine shows signs of wear, such as reduced compression or unusual noises.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 47mm outer diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Height:\u003c\/strong\u003e 34.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Height:\u003c\/strong\u003e 17.25mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Diameter:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Length:\u003c\/strong\u003e 36.8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Piston, Pin, Rings, Circlips\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis piston kit is specifically designed for use in GY6 50cc engines, particularly the QMB139 model.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQMB139 50cc\u003c\/li\u003e\n\u003cli\u003eQMB139 49cc\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-pistons-rings\"\u003eScooter Pistons \u0026amp; Piston Rings\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Magic Cars","offers":[{"title":"Default Title","offer_id":52795083129063,"sku":"25-900012","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/47mm-gy6-50cc-139qmb-piston-kit-1.jpg?v=1791583342","url":"https:\/\/www.magiccars.com\/products\/47mm-gy6-50cc-139qmb-piston-kit","provider":"MagicCars","version":"1.0","type":"link"}