These SEI Drives are Entirely new, Not remanufactured.
All parts are compatible & interchangeable with OEM.

Complete Upper & Lower Replacement Drives.

Upper & Lower drives available individually or as a package.

SEI has done extensive testing on all of the parts of the drives including the gears, shafts, bearings, and other wear parts to confirm performance and durability. SEI operates one of the only research lakes in the world dedicated to the testing of marine propulsion systems. The research centre has a 40-acre lake with a stationary dock that allows for around-the-clock endurance testing of parts, such as gears, shafts, and bearings.

GEN 1 GEN II  Transom Manifolds Trim Parts Details

GEN II Drive (Set)

GEN 1 Drive (Set)

Seal Kits Gear Sets Internal Parts Service Kits Tools

Sterndrives © 2013

Sterndrive Engineering, Inc. (SEI) manufactures a stern drive designed to replace Mercury Marine's MerCruiser®, Alpha One®, R, MR, Gen II and Bravo One® stern drives. MerCruiser®, Alpha One®, Gen II, R, MR and Bravo One® are trademarks of the Brunswick Corporation. SEI & Sterndrives Australia has no affiliation with the Brunswick Corporation. Consequently, any warranties governing products manufactured and/or sold by Brunswick Corporation will not apply to products manufactured and/or sold by SEI, or to products damaged due to the operation of an SEI product. Sterndrives Australia & Sterndrive Engineering, Inc. is not affiliated with Mercury®; Yamaha®; OMC® or their products. All reference to their trademarks and trade names are the property of the respective owners.
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