Product Description Crankshaft with Bearings Connecting Rod GY6 50cc Scooter 139QMB 17 & 22 Teeth Introducing our premium Crankshaft with Bearings and Connecting Rod designed specifically for GY6 50cc Scooters with the 139QMB engine, featuring 17 & 22 Teeth configuration. Crafted with precision engineering and high-quality materials, this crankshaft assembly ensures optimal performance and longevity for your scooter's engine. Details:Compatibility: Engineered to seamlessly fit GY6 50cc Scooters equipped with the popular 139QMB engine, guaranteeing a perfect match for your vehicle.Durable Construction: Constructed with robust materials and expert craftsmanship, this crankshaft assembly is built to withstand the rigors of daily use and deliver reliable performance.Smooth Operation: The precise engineering of the crankshaft, bearings, and connecting rod ensures smooth and efficient operation, reducing friction and enhancing overall engine performance.Enhanced Teeth Configuration: Featuring 17 & 22 Teeth configuration, this crankshaft assembly offers improved torque delivery and power transmission, allowing your scooter to accelerate smoothly and effortlessly.Long-lasting Bearings: Equipped with high-quality bearings, this assembly provides excellent support and stability to the crankshaft, promoting longevity and reducing wear and tear on critical engine components.Easy Installation: Designed for hassle-free installation, this crankshaft assembly can be easily fitted into your scooter's engine, saving you time and effort. Specs:17 teeth oil sprocket. Known to Fit: For the GY6 50, 4 stroke, 139QMB, engine for scooters, quads, ATVs and buggies.Fits: Gator 50 Baja, JMStar, Jonway, Lance, NST, Roketa, Sunl, Tank, TNG, Vento, VIP and many others. Please compare to your old part before ordering. COUNT THE TEETH! OLDER MODELS USUALLY HAVE 16 TEETH, WHILE NEWER MODELS WILL HAVE 22! Check our store for the Crankshaft with 16 Teeth. Shipping Unless Free Shipping is noted, buyer pays shipping and handling.Payment All credit Card payments are graciously accepted through PayPal only. 6% if shipped to GA, Resale numbers accepted please email after auction.Return All sales are final. We do not offer refunds or credits .Returns will only be recognized for damaged or faulty goods within 7 days of purchase. No returned goods will be recognized without prior authority from our office on 03-094210104, and will require proof of date of purchase documentation. All original tags and packaging must be intact.About Us We provide replacement and aftermarket parts to service Asian-made power sports and transportation products. We aspire to offer our services to the highest standards of business.Contact Us Your Positive Feedback and Satisfaction is our goal. We respond to all emails. If you have a problem, please contact us before leaving negative/neutral feedback. If you have not received a response in 24 hours, it's because we did not get your email. Please send again.