Changes starter output shaft from 9-tooth 11.7mm, to 9-tooth 14.4mm diameter at the base of the splines Changes starter ratio from 9:58-tooth to 9:44-tooth Kit Includes: 0825-030 1 Starter Motor Assembly 0815-033 1 Starter Idler Gear 44/14-tooth 0830-132 1 Magneto Cover Gasket Replaces Part # 0815-032