{"product_id":"gy6-50cc-139qmb-bolts-m7-168-pair","title":"GY6 50cc (139QMB) Bolts (M7*168, Pair)","description":"\u003ch2\u003eReplacement Bolts for GY6 50cc and 80cc Engines\u003c\/h2\u003e\u003cp\u003eThese two bolts are meant to take the place of the original studs on scooters that use 139QMB engines. A snug, reliable fit is the main goal here, which is why they matter for keeping the engine assembly intact. They belong to the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e range and contribute to how your vehicle runs. If you are repairing or swapping out engine components, these are worth a look.\u003c\/p\u003e\u003ch3\u003eConstruction and Fit\u003c\/h3\u003e\u003cp\u003eEach bolt is cut to exact measurements so it installs correctly. The overall length is 168mm, which lets it seat securely within the engine. The small end uses an M7x1.00 thread over a 14mm thread length, and the large end also uses an M7x1.00 thread, but with an 18mm thread length.\u003c\/p\u003e\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\u003cp\u003eSwap these bolts out if the engine starts to vibrate or if you notice they are worn. Bolts in good condition help the engine stay steady. Checking them regularly can help you avoid damage to other engine parts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 168mm (6.5 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size (Small End):\u003c\/strong\u003e M7x1.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length (Small End):\u003c\/strong\u003e 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size (Large End):\u003c\/strong\u003e M7x1.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length (Large End):\u003c\/strong\u003e 18mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 139QMB-based 50cc and 80cc engines (139QMA, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e139QMB-based 50cc and 80cc engines (engine codes 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD)\u003c\/li\u003e\n\u003cli\u003eOther QMA and QMB engines (engine code includes QM or FM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Compare the engine code stamped on your engine with the list above. Any code that contains QM or FM is considered compatible.\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-hardware\"\u003eScooter Bolts, Screws \u0026amp; Hardware\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":51138782232633,"sku":"TT-26716","price":2.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/bolts-m7-168-pair-for-gy6-50cc-139qmb-1.jpg?v=1794377745","url":"https:\/\/www.trendtimes.com\/products\/gy6-50cc-139qmb-bolts-m7-168-pair","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}