Brand new electric starter motor Fit most of 47cc 49cc 50cc 4-stroke ATVs, mopeds, go karts, and scooters with 139QMB GY6 engine Standard OEM Specification 10 Tooth, 12V 70mm (2 3/4″) Bolt Spacing This is a brand new electric starter motorFit models:most of 47cc 49cc 50cc 4-stroke ATVs, mopeds, go karts, and scooters with 139QMB GY6 enginealmost all of the brands from China, such as TaoTao, Buyang, Coolsport, Lifan, Kazuma, Sunl, Honda, Redcat, Eagle, JCL etc.Note:Standard OEM specification10 Tooth12V70mm (2 3/4″) Bolt SpacingPlease compare your part with our picture to make sure.