9.9-15HP with 20-25 Gearcase 99 ~ 05 20HP (Merc) 86 ~ 06 18HP (Merc) 80 ~ 85 25HP (Sea Pro/Marathon) 25HP (Mariner 2 Stroke) 85 ~ 25HP (Not 4 Stroke) 86 ~ 20-25HP 07 & New
10 Tooth Spline
Offers increased static thrust for heavy loads & manoeuvrability Great stern lift & mid range performance