Simply put, buying a remanufactured drive is risky. Common practices include reusing critical wear parts such as cases, gears, shafts and bearings. Consequently, premature failures are common. Why risk relying on used and possibly worn out parts when you can buy brand new from SEI for less money and receive a 3-year fault-free warranty? What could be better?!

200 Series Replaces Mercury® Outboard Lower     300 Series Replaces OMC® /BRP V6 Outboard Lower     400 Series Replaces Yamaha ® Outboard Lower

Thanks for taking the time to consider our products. SEI's Outboard Lower Units are changing the industry. With the best warranty in the industry you can be sure we are confident in our product.

We also have a forum section  where you can get technical assistance and reviews of our products are in the SEI Experience section.  We also have technical guides to help with installation of our Outboard Lower Units.

We make replacement Outboard Lower Units for most Mercury, Johnson, Evinrude and Yamaha V6 Outboard Engines.

Our SE200 Series replaces most Mercury 2.0L, 2.4L and 3.0L V6 Outboard Lower Units.

Our SE300 Series replaces most Johnson and Evinrude V6 Outboard Lower Units.

Our SE400 Series replaces most Yamaha V6 Outboard Lower Units.

Please click on the appropriate Outboard Lower Unit category to see more specific information.