{"product_id":"qmb139-complete-gasket-set-130-69","title":"Chinese 50cc 139QMB Complete Engine Gasket Set","description":"\u003ch2\u003eComplete 139QMB Engine Gasket Set\u003c\/h2\u003e\u003cp\u003eEliminate leaks and restore engine compression with the \u003cstrong\u003eUniversal Parts Complete 50cc Engine Gasket Set\u003c\/strong\u003e. Whether you are performing a top-end refresh or a full crankcase split, this comprehensive kit provides every seal and gasket required to properly close up a 50cc 4-stroke engine. Designed to meet or exceed OEM specifications, these gaskets are manufactured from high-density materials that resist the heat and chemical breakdown common in air-cooled scooter engines.\u003c\/p\u003e\u003ch3\u003eComprehensive Component List\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Case Gaskets:\u003c\/strong\u003e Includes the center crankcase and stator\/magneto cover gaskets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop-End Seals:\u003c\/strong\u003e Features the cylinder head gasket, base gasket, and valve cover seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCVT \u0026amp; Transmission:\u003c\/strong\u003e Includes a high-quality CVT cover gasket tailored for your specific case length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust \u0026amp; Intake:\u003c\/strong\u003e Comes with a crush-style exhaust gasket and the intake manifold spacer O-ring.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eSizing Guide \u0026amp; Selection\u003c\/h3\u003e\u003cp\u003eQMB139 engines come in multiple configurations.\u003c\/p\u003e\u003cp\u003ePlease use the \u003cstrong\u003eDrop-Down Menus\u003c\/strong\u003e above to select the correct size for your build:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eBore Size (Head Gasket)\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eRecommended For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e44mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStock 50cc Engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e48mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e72cc \/ 80cc Big Bore Kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eCase Type (CVT Gasket)\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eMeasurement Details\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShort Case (SC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 11\/16\" (398mm) Length | 8-Bolt Pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLong Case (LC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17\" (432mm) Length | 11-Bolt Pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eInstallation Tip:\u003c\/strong\u003e Always ensure the engine mating surfaces are scraped perfectly clean and free of old gasket material before installing the new set. \u003c\/blockquote\u003e\u003cp style=\"font-size: 0.85em; color: #666;\"\u003e\u003cstrong\u003eVendor:\u003c\/strong\u003e Universal Parts \u003cbr\u003e\u003cstrong\u003eEngine Type:\u003c\/strong\u003e GY6 50cc 4-Stroke (QMB139 \/ 1P39QMB)\u003c\/p\u003e","brand":"Universal Parts","offers":[{"title":"Default Title","offer_id":48112434774203,"sku":"130-67    44-SC","price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/130-67_f3d24568-e08c-4bc7-8ac5-03d92c4c1708.webp?v=1784317630","url":"https:\/\/thriftyscooters.com\/products\/qmb139-complete-gasket-set-130-69","provider":"Thrifty Scooters","version":"1.0","type":"link"}