BRP, Johnson/Evinrude, OMC Sterndrive 8-15 HP, 2-1/2″ Gearcase (13 Tooth Spline & Thru Hub Exhaust) Suzuki 8-20 HP, 2-1/2″ Gearcase (10 Tooth Spline & Thru Hub Exhaust) Suzuki 8-20 HP, 2-1/2″ Gearcase (10 Tooth Spline & Thru Hub Exhaust) Tohatsu, Nissan 9.9-20 HP, 2-1/2″ Gearcase (14 Tooth Spline & Thru Hub Exhaust) Mercury/Mariner, Mercruiser Sterndrive 9.9-20 HP, 2-1/2″ Gearcase (14 Tooth Spline & Thru Hub Exhaust) (Japan Origin Tohatsu) Yamaha 9.9-20 HP 2-1/2″ Gearcase (8 Tooth Spline & Thru Hub Exhaust) BRP, Johnson/Evinrude, OMC Sterndrive 15-35 HP, 3″ Gearcase (14 Tooth Spline & Thru Hub Exhaust) Honda 25-30 HP, 3″ Gearcase (10 Tooth Spline & Thru Hub Exhaust) Johnson 9.9-15 HP (4-Stroke), 2002-07, 2-1/2″ Gearcase (10 Tooth Spline) (Japan Origin Suzuki) Mariner 25-30 HP, 3″ Gearcase (10 Tooth Spline) (Japan Origin Yamaha) Mercury/Mariner, Mercruiser Sterndrive 25-30 HP 3″ Gearcase (10 Tooth Spline) (Japan Origin Tohatsu) Suzuki 20-30 HP, 3″ Gearcase (10 Tooth Spline & Thru Hub Exhaust) Tohatsu, Nissan 25-30 HP, 3″ Gearcase (10 Tooth Spline & Thru Hub Exhaust) Yamaha 20-30 HP, 3″ Gearcase (10 Tooth Spline & Thru Hub Exhaust)