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Forum: SE 200 Series Support

(Replaces Mercury's® Outboard Lower Units)

  1. what is the gear ratio for my lower unit?

    Started by bcacace, 07-28-2010 04:02 PM
    • Replies: 6
    • Views: 10,177
    08-08-2010, 09:33 PM Go to last post
  2. Question Water Pressure

    Started by Billphyllis, 06-07-2009 04:21 PM
    • Replies: 5
    • Views: 4,759
    06-11-2009, 09:10 AM Go to last post
  3. New lower unit

    Started by bkeenom, 11-12-2008 09:46 AM
    • Replies: 4
    • Views: 4,911
    11-12-2008, 02:18 PM Go to last post
  4. Can i still use the same prop ?

    Started by butch11798, 04-11-2012 06:16 PM
    • Replies: 2
    • Views: 2,885
    04-11-2012, 06:24 PM Go to last post
  5. Prop shaft has wrong splines

    Started by captainjay, 11-12-2011 11:49 AM
    • Replies: 4
    • Views: 4,291
    11-15-2011, 07:42 AM Go to last post
  6. Two-Piece Shaft Merc 3.0 SEI 216

    Started by Captainjefe, 08-18-2011 10:24 AM
    • Replies: 2
    • Views: 3,762
    08-21-2011, 07:02 PM Go to last post
  7. 1999 mercury xr6 150

    Started by Chris miller, 04-25-2011 09:33 PM
    • Replies: 1
    • Views: 2,994
    05-03-2011, 10:14 PM Go to last post
  8. Exclamation play in the prop shaft?

    Started by coyote, 10-07-2010 11:23 PM
    • Replies: 4
    • Views: 4,249
    10-09-2010, 05:10 PM Go to last post
  9. SE216-OEM parts compatable

    Started by Curt112, 05-13-2015 05:29 PM
    • Replies: 1
    • Views: 1,714
    05-13-2015, 06:13 PM Go to last post
  10. Water flow

    Started by cwood28, 06-30-2013 07:51 PM
    • Replies: 3
    • Views: 3,051
    07-01-2013, 06:47 PM Go to last post
  11. counter rotation 2.4L 20" lower ?

    Started by enforcer28, 03-04-2009 11:43 AM
    • Replies: 1
    • Views: 2,884
    03-04-2009, 01:40 PM Go to last post
  12. Don't know my liters

    Started by fishntyme, 04-23-2009 11:46 PM
    • Replies: 3
    • Views: 3,624
    04-29-2009, 09:26 PM Go to last post
  13. Installation instructions for SE205

    Started by frankt75, 04-28-2012 04:32 PM
    • Replies: 3
    • Views: 3,815
    04-30-2012, 08:27 AM Go to last post
  14. Max RPM?

    Started by ILLMATTIC, 04-06-2009 01:46 PM
    • Replies: 3
    • Views: 3,703
    04-09-2009, 02:20 PM Go to last post
  15. lower unit for mercury

    Started by jaimary, 08-01-2010 08:24 AM
    • Replies: 3
    • Views: 3,765
    08-04-2010, 11:27 PM Go to last post
  16. SEI 206 Lower Unit Prop Rubbing Housing

    Started by lv1975, 03-03-2013 07:17 PM
    • Replies: 1
    • Views: 3,441
    03-04-2013, 11:27 AM Go to last post
    • Replies: 2
    • Views: 3,843
    10-06-2016, 06:38 PM Go to last post
  17. Outdrive won't shift into forward or reverse

    Started by Markd48, 08-09-2009 03:25 PM
    • Replies: 1
    • Views: 7,725
    08-09-2009, 03:33 PM Go to last post
  18. Question Help

    Started by Merc150, 11-24-2009 02:01 AM
    • Replies: 1
    • Views: 3,526
    11-24-2009, 07:03 PM Go to last post
  19. Break in for SE 206

    Started by mudpaws, 06-25-2014 01:17 PM
    • Replies: 2
    • Views: 2,294
    06-29-2014, 06:23 PM Go to last post

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115 S. Forest Lakes Blvd.
Oldsmar, FL 34677

tel: 813.925.7127
fax: 813.925.7064


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, R, MR, Gen II and Bravo One® are trademarks of the Brunswick Corporation. SEI has no affiliation with the Brunswick Corporation. Consequently, any warranties governing products 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.