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SEI optimizes tooling and specialized processes to ensure a refined and improved drive you can rely on. Learn about the products that make up an SEI sterndrive.

SE106™ Upper Drive Shaft Housing Schematic
SE106™ Lower Gear Housing Schematic
SE116™ Upper Drive Shaft Housing Schematic
SE116™ Lower Gear Housing Schematic

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©Copyright 2024. Sterndrive Engineering Inc. All Rights Reserved.

The three year fault-free warranty covers any damage to the drive that requires it to be repaired or replaced including failures resulting from lack of oil, fishing line, impact, neglect, and other abuse. Sterndrive Engineering, Inc. (SEI) manufactures a stern drive designed to replace Mercury Marine's MerCruiser®, Alpha One®, R, MR, Gen II, Bravo One®, Bravo Two® and Bravo Three® stern drives. MerCruiser®, Alpha One®, Gen II, R, MR, Bravo One®, Bravo Two®, Bravo Three® are trademarks of the Brunswick Corporation. SEI 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. 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.