Star brite Lower Unit Gear Lube Kit - DIY Flushing & Filling Of Outboard & Stern Drives Contains one 32 fl oz 80W90 (27032) high viscosity lower unit gear lube and a quart pump (27400) Allows easy DIY servicing of lower units Metal threaded fitting 3/8-16 fits Mericruiser, OMC, Evinrude, Johnson, Honda (70hp & up), Volvo, Force, Gamefisher & Mercury (US models) lower units Use 8mm adapter for Yamaha, Nissan, Tohatsu, Mercury (Japanese models) & Honda (2-50 hp) lower units Use 10mm adapter for Suzuki lower units - Always check owners manual for correct size