Quart sixw pump for outboard lower units, power trim and tilt units.  Fits outboards and stern drives with 3/8-16 threaded screw.  Fits outboards:  Johnson/Evinrude, Mercury/Mariner, Suzuki 25 HP & larger, and Yamaha 8HP & larger.  Fits sterndrives:  OMC, OMC Cobra, OMC SX Cobra, Mercruiser, Speedmaster and Volvo Penta SX.  8mm threaded adapter included for:  Yamaha, Honda, Mercury 4 stroke (over 115 HP), Nissan and Tohatsu