ITG Marine

Replacement Sterndrives & Lower Units

Product List

Mercruiser Drives

  Alpha One

  Bravo One


  Upper Units

  Lower Units

Outboard Lower Units






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  New Outboards


  Tilt & Trim Systems



  Replacement Parts

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Replacement for Mercruiser's
Bravo One I/O

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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.


Replacement Sterndrive Units



(Replaces MerCruiser's® Alpha One® I/O 1973-1990)

Complete Upper & Lower
Lower Unit | Upper Unit




(Replaces MerCruiser's® Gen II ® I/O 1991-present)

Complete Upper & Lower
Lower Unit | Upper Unit




(Replaces Mercruiser's® Bravo One I/O)

Lower Unit



Replacement Outboard Lower Units

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:


Stainless Steel &
Aluminum Props

Increase the performance
of your boat easily by upgrading to a new propeller from

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.