BLAST LED - Yerf-Dog Go Kart Torque Converter 3/4" Replace Yerf Dog Driver Unit Q43201W Yerf-Dog Go Kart Torque Converter 3/4" replace Yerf Dog Driver Unit Q43201W WORKS WITH 3HP -7HP ENGINES FITs ALL ENGINES WITH A 3/4" SHAFT Includes: 1 X 30 series Driver, 1 Bolt holder (5/16"), 1 Crankshaft bolt (UNF 5/16 -24) and 1 lock washer Fits Yerf Dog Driver Unit Q43201W