{"product_id":"cam-tensioner-bolt-o-ring-for-scooters-mopeds","title":"Cam Tensioner Bolt O-ring for Scooters \u0026 Mopeds","description":"\u003ch2\u003eCam Tensioner Bolt O-ring for 50cc 4-Stroke Engines\u003c\/h2\u003e\u003cp\u003eThis Cam Tensioner Bolt O-ring is designed specifically for 50cc 4-stroke QMB139 engines, ensuring proper performance and efficiency. It is important for maintaining the integrity of the engine's cylinder head and valves. As one of the \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003escooter cylinder heads \u0026amp; valves\u003c\/a\u003e, this component helps manage airflow and compression within the engine. Replacing a worn-out O-ring can prevent issues such as low compression or valve damage.\u003c\/p\u003e\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\u003cp\u003eThe Cam Tensioner Bolt O-ring seals the connection between the camshaft and the cylinder head, playing a significant role in maintaining engine performance. It's advisable to replace this part if you notice ticking sounds or a drop in engine performance, as these can indicate a failing O-ring.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 17mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 1.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 50cc\/49cc QMB139 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis O-ring is compatible with various 50cc 4-stroke scooters and mopeds using the QMB139 engine model.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eQMB139\u003c\/li\u003e\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\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets \u0026amp; Seals\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":52795157971175,"sku":"25-902182","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2245\/9711\/files\/cam-tensioner-bolt-o-ring-1.jpg?v=1791584054","url":"https:\/\/www.magiccars.com\/products\/cam-tensioner-bolt-o-ring-for-scooters-mopeds","provider":"MagicCars","version":"1.0","type":"link"}