Gear 3/4 Drive 17/20T $ 30.00 SKU: Gear 4JT-17131-30U Gear 3/4 pinion 17/20T. Back to: Used Parts ×Close Yamaha Yamaha is a leader in businesses ranging from musical instruments and audio & video products to information technology products, new media services, home furnishings, auto components, specialty metals, music education and resort facilities. http://www.global.yamaha.com/ Description Suit all the TZ125 4JT models.