Lower Unit Lube Tube. Quick, easy and clean way to change marine lower unit gear lube For use with all squeeze tubes. Metal threaded fitting fits Mercruiser, OMC, Evinrude, Johnson, Honda (70-90hp), Volvo, Force and Gamefisher lower units. Requires adapter SB28401 for Yamaha, Nissan, Tohatsu & Honda Lower units (2-50 hp) Requires adapter SB28402 for Suzuki and larger Honda motors.