Every shaft inside the lower unit, drive shaft, propeller shaft, pinion gear, rides on bearings that maintain precise alignment under heavy load reversal every time the engine shifts between forward and reverse. Surrounding those bearings are oil seals and dust seals that keep gear lubricant in and water out, a sealing job made harder by the fact that the lower unit operates fully submerged.
Boat Max Online stocks genuine Suzuki OEM lower unit bearings, oil seals, dust seals, and thrust washers for gearcase service. Thrust washers in particular set the axial clearance for the gear set and pinion, getting this clearance correct during reassembly is part of what determines whether the lower unit runs quietly or develops a whine or clunk under load.
As an authorized Suzuki Marine dealer, every bearing and seal we sell matches genuine Suzuki dimensions and material specification for its exact location in the gearcase. Free shipping on orders over $499 to the lower 48 states.