[High Quality Materials]Our Torque Converter is made of high quality iron and aluminum materials, light weight, durable. It can reduce engine load and gain more power and save more effort on driving your car and can improve your driving speed. [With 1 Tooth Sprocket]1 x 10 Tooth Sprocket for #40/41/420 Chain. [Widely Fitment]Fits All engines with a 3/4 inch straight crankshaft, Go Karts 30 Series and 2HP-7HP engine with 3/4″ Shaft with flat key.You can use on motorcycle,go kart ,mini vehical and etc.Notice:The bolts are metric bolts. [Full-Set Equipment]This kart torque converter kit includes the main parts: a 3/4″ driver pulley and a 5/8″ driven pulley,and includes other accessories like drive belt,plastic assy cover,aluminum mounting bracket plate,and full mounting hardware kit [Replace Part Number]Comet 219552A,203814A,219456A,218353A,TAV2 30-75. Go Kart TAV2 30 Series Torque Converter 10T Sprocket