Suzuki OEM Lower Unit Shims & Spacers

Shims and spacers are the smallest components in a lower unit rebuild, but getting their thickness right is what separates a quiet, long-lasting gearcase from one that whines, clunks, or wears out prematurely. Suzuki specifies a precise backlash range between the pinion and forward/reverse gears, and shims are selected in small thickness increments during reassembly to hit that target.

Boat Max Online stocks genuine Suzuki OEM lower unit shims, spacers, and thrust washers used to set gear backlash and bearing preload during a rebuild. These are typically sold in sets spanning a range of thicknesses, allowing a technician to select and combine the exact shims needed to achieve specified clearance for your engine family.

As an authorized Suzuki Marine dealer, every shim and spacer we sell is manufactured to Suzuki's exact thickness tolerances, the precision that a generic aftermarket equivalent often cannot match consistently. Free shipping on orders over $499 to the lower 48 states.