{"product_id":"48mm-head-base-gasket-for-72-75cc-big-bores-for-scooters-mopeds","title":"48mm Head \u0026 Base Gasket for 72-75cc Big Bores for Scooters \u0026 Mopeds","description":"\u003ch2\u003e48mm Head and Base Gasket Set for QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis gasket set is made for 48mm oversized cylinder kits fitted to QMB139 engines, the type typically used in scooters and mopeds. It works as a reliable replacement that helps keep a tight seal while the engine runs. Among our \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003erange of scooter gaskets and seals\u003c\/a\u003e, this item is intended to support steady engine output and limit leaks. Its inner diameter measures 48mm, which matches the applications it is listed for.\u003c\/p\u003e\u003ch3\u003eProduct Features\u003c\/h3\u003e\u003cp\u003eThe set contains both a cylinder head gasket and a base gasket, so you have everything needed for a full engine reseal. Both gaskets are cut to suit a 71mm cylinder stud spacing, the standard spacing for QMB139 builds. Because it follows an OEM-style layout, it should line up with the original parts and make installation more straightforward during an engine overhaul.\u003c\/p\u003e\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\u003cp\u003eThese gaskets are best swapped out during a major engine rebuild, or when oil leaks or drops in performance appear. Staying on top of maintenance and replacing worn scooter gaskets and seals when needed can help avoid further engine damage and keep your scooter running dependably.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 48mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Stud Spacing:\u003c\/strong\u003e 71mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e QMB139 (139QMB) 50cc\/49cc 4-stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Cylinder head gasket and base gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e QMB139 (139QMB) 4-stroke scooter engines with 48mm big bore cylinder kits (72-75cc)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQMB139 (139QMB) 72cc\/75cc 4-stroke scooters with 48mm big bore cylinder kits\u003c\/li\u003e\n\u003cli\u003eTaoTao, Roketa, Jonway, Wolf, Ice Bear, Vitacci, Peace Sports, Bintelli and other QMB139-based platforms\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Confirm your engine is a QMB139 (139QMB) and your cylinder is a 48mm big bore kit. This gasket set has a 48mm inner diameter and 71mm stud spacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\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":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51134471012409,"sku":"TT-15968","price":3.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/48mm-head-base-gasket-for-72-75cc-big-bores-1.webp?v=1794344353","url":"https:\/\/www.trendtimes.com\/products\/48mm-head-base-gasket-for-72-75cc-big-bores-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}