{"product_id":"pulley-and-clutch-assembly-gy50-qmb139","title":"Blue Line 139QMB Driven Pulley \u0026 Clutch - GY6 50cc Scooters","description":"\u003cp\u003eThis \u003cstrong\u003eBlue Line Driven Pulley and Clutch Assembly\u003c\/strong\u003e is a complete rear pulley, clutch, and clutch bell for 139QMB 50cc scooters, the Honda GY6-based engine used in the CSC go., go. MAX, Bella, Pug, and Nitro and many other Chinese 50cc scooters. It arrives assembled with clutch shoes, torque spring, and pulley faces, plus a 115mm clutch bell with 22-tooth splines, so you can swap out a worn, slipping, or shuddering clutch in one step.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete assembly:\u003c\/strong\u003e Driven pulley, clutch shoes, torque spring, and clutch bell in one unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e115mm clutch bell:\u003c\/strong\u003e Matches the stock 139QMB bell size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22-tooth splines:\u003c\/strong\u003e Splined bell hub fits the stock 139QMB drive shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVented bell:\u003c\/strong\u003e Ventilation holes help shed heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-equivalent fit:\u003c\/strong\u003e Direct replacement for the original 139QMB assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 1100-1317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternate part number:\u003c\/strong\u003e 151-232\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch bell outer diameter:\u003c\/strong\u003e 115mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch bell inner diameter:\u003c\/strong\u003e 11mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplines:\u003c\/strong\u003e 22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 139QMB 50cc 4-stroke (Honda GY6-based)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Blue Line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModels\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChicago Scooter Company\u003c\/td\u003e\n\u003ctd\u003ego., go. MAX, Bella, Pug, Nitro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary application\u003c\/td\u003e\n\u003ctd\u003eHonda GY6-based 50cc scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine codes\u003c\/td\u003e\n\u003ctd\u003e139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, BD1P39QMB, BN139QMB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe 139QMB is a 50cc engine based on the Honda GY6 design and widely used across Chinese and Taiwanese 50cc scooters. Check the engine code stamped on your scooter before ordering. Engines marked with a listed 139QMA\/139QMB code may use this part, but verify the clutch bell diameter and spline count against your original part.\u003c\/p\u003e","brand":"BLUE LINE","offers":[{"title":"Default Title","offer_id":67964554215745,"sku":"1100-1317","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/az-p012-6847-2-1100-1317_b.jpg?v=1792557838","url":"https:\/\/azscooterparts.com\/products\/pulley-and-clutch-assembly-gy50-qmb139","provider":"AZScooterParts","version":"1.0","type":"link"}