Comet Belt 203591A fits Comet 30 Series Torque Converters for 3 to 8engines. Belt fit for Yerf-dog #203591/Q430203W The asymmetrical cog belt used on all Yerf-dog go-karts with Tecumseh engines and belt. Width: 0.75 inch;Length: 29.25 inch; Driven torque-converters; The package contains a belt, belt with waist seal randomly delivered. Pulley needs to be from 7 9/16 inch to 7 5/8 inch(6?? Driven), or from 6 13/16 to 6 7/8 inch(7?? Driven) (measured from the center of the clutch to the center of the driven pulley)