Replacement sterndrives are precision engineered and extremely cost-effective. These drives are new, built to Mercruiser specifications, not remanufactured. Add to that, our 3 Year Warranty, and no Core Charge, and you can realize the advantages of installing our sterndrives. Sterndrives SE106™ (Replaces MerCruiser's® Alpha One® I/O 1973-1990) Complete Upper & Lower Lower Unit | Upper Unit   SE116™ (Replaces MerCruiser's® Gen II ® I/O 1991-present) Complete Upper & Lower Lower Unit | Upper Unit   SE121™ (Replaces Mercruiser's® Bravo One I/O) Lower Unit   Outboards 200 Series (Replaces Mercury® Outboard Lower Units) SE206™ (Replaces most Mercury® 2.5L) SE216™ (Replaces most Mercury® 3.0L) 300 Series (Replaces Johnson/Evinrude® Lower Units) SE306™ (Replaces most Johnson/Evinrude V6) 400 Series (Replaces Yamaha® Lower Units) SE416™ (Replaces most Yamaha® 90° V6) SE421™ (Replaces most Yamaha® 76° V6)   New Outboards Outboard Engine Sale Save on your next outboard purchase with ITG Marine. Our Engines are new 2006 models with full warranty. Compare our prices and save! View our Engine Specials: Propellers Stainless Steel & Aluminum Props Increase the performance of your boat easily by upgrading to a new propeller from propline.com Visit Propline.com ITG Marine offers stern drives designed to replace Mercury Marine's MerCruiser® Alpha One®, R, MR, Gen II and Bravo One® stern drives. MerCruiser® Alpha One, R, MR, Gen II and Bravo One® are trademarks of the Brunswick Corporation. ITG Marine has no affiliation with the Brunswick Corporation.