SEI Yamaha Outboard Replacement Lower Unit Gearcase
Grab your engine model number and get in touch with us here at MarineEngine.com. We're happy to help order the correct replacement unit to get you back on the water.
SE404 Yamaha Some 2-stroke and 4-stroke 75-100 HP
SE405 Yamaha V4 2-Stroke and some 4-Stroke
SE416 Yamaha 90-degree block V6 & some Inline 4 Cyl
SE418 Yamaha 90-degree block V6 Counter Rotation
SE421 Yamaha 76-degree block V6
SE422 Yamaha Some F250
SE428 Yamaha 76-degree block V6 Counter Rotation
