Twin Power 90-93 Big Twin 9 Tooth Starter Pinion Gear Use With 66t

Twin Power™ starter pinion gears match 66T or 102T ring gears for 1990-2006 Big Twin starters. Hardened steel teeth withstand high starter loads without premature wear 9-tooth gears pair with 66-tooth ring gears; 10-tooth with 102-tooth Essential for starter rebuilds addressing stripped gear failures