Sterndrives

Stern drive lower and upper units, transom and gimbal assemblies, steering, and trim pumps. Mercruiser (Alpha One, Alpha One Generation II, Alpha SS, Bravo One, Bravo Two, Bravo Three, Bravo XR Sportmaster, TRS, Speed Master), IMCO, ILMOR, Konrad, OMC, Volvo Penta

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  2. Diesel Engines (link)

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  1. montero

    Mercruiser Alpha 1 gen 2

    montero, Oct 2, 2025 ... 2
    Replies:
    18
    Views:
    1,113
    gonzo
    Oct 11, 2025
  2. montero

    Outdrive ratio

    montero, Sep 6, 2025 ... 2
    Replies:
    22
    Views:
    3,109
    montero
    Sep 16, 2025
  3. Soir

    Volvo AQ280 single prop to Duo prop lower

    Soir, Jul 18, 2025
    Replies:
    0
    Views:
    788
    Soir
    Jul 18, 2025
  4. Masterful

    Volvo D4 DPI on a 30 ft cat

    Masterful, Aug 1, 2024
    Replies:
    4
    Views:
    1,397
    Masterful
    Aug 3, 2024
  5. SoccerGuy3

    OMC Stringer Transom Seal / Boot Replacement Problem

    SoccerGuy3, Jun 17, 2024
    Replies:
    4
    Views:
    2,305
    SoccerGuy3
    Jun 19, 2024
  6. Nidza

    Welded metal belows - would that work for sterndrive?

    Nidza, Oct 18, 2023
    Replies:
    4
    Views:
    3,684
    Nidza
    Oct 20, 2023
  7. Ryan Shultz

    Mercruiser Alpha drive - is water coming out near bellows normal?

    Ryan Shultz, Sep 9, 2023
    Replies:
    7
    Views:
    3,233
    gonzo
    Sep 11, 2023
  8. RSD

    Sterndrives on a vessel that is permanently in saltwater - OK or bad idea?

    RSD, Jan 3, 2023
    Replies:
    11
    Views:
    5,096
    DogCavalry
    Jan 6, 2023
  9. Steve_123

    Help identifying stern drive

    Steve_123, Nov 28, 2022
    Replies:
    1
    Views:
    2,163
    baeckmo
    Nov 28, 2022
  10. DogCavalry

    Help identifying old sterndrives

    DogCavalry, Aug 5, 2021 ... 2
    Replies:
    16
    Views:
    7,879
    fallguy
    Aug 8, 2021
  11. DogCavalry

    It's enough to make you cry

    DogCavalry, Mar 8, 2021 ... 2
    Replies:
    15
    Views:
    4,517
    DogCavalry
    Mar 9, 2021
  12. Mark TR

    Mercruiser 188/888 starting and running but no thrust

    Mark TR, Nov 3, 2020
    Replies:
    11
    Views:
    4,732
    Ike
    Nov 5, 2020
  13. DCockey

    New Mercury forward face prop sterndrive

    DCockey, Aug 24, 2020
    Replies:
    7
    Views:
    3,230
    gonzo
    Aug 29, 2020
  14. Bobby Johns

    Engine swap expertise

    Bobby Johns, Jul 7, 2020
    Replies:
    1
    Views:
    2,471
    brendan gardam
    Jul 7, 2020
  15. SHalla

    Volvo SX-M Stern Drive 1999 Four Winns 3.0L is stuck

    SHalla, Jun 11, 2020
    Replies:
    2
    Views:
    2,810
    SHalla
    Aug 22, 2020
  16. Squirrelmaster

    OMC 190hp sterndrive

    Squirrelmaster, Apr 28, 2020
    Replies:
    7
    Views:
    5,429
    Squirrelmaster
    Apr 29, 2020
  17. clark

    alignment issues

    clark, Apr 20, 2020
    Replies:
    4
    Views:
    2,527
    clark
    Apr 20, 2020
  18. kalo76

    Request for assistance for the installation of two Sterndrives?

    kalo76, Mar 26, 2020
    Replies:
    14
    Views:
    3,652
    gonzo
    Apr 2, 2020
  19. scotch&water

    Black art?

    scotch&water, Dec 30, 2019 ... 3 4 5
    Replies:
    74
    Views:
    12,528
    gonzo
    Jan 8, 2020
  20. Chris A Farwell

    1984 19 ft. BRC SeasSwirl open bow with OMC 3.8L. Replacing engine. Need pointers, please

    Chris A Farwell, Nov 30, 2019
    Replies:
    3
    Views:
    4,778
    Chris A Farwell
    Apr 7, 2020
  21. Nidza

    Mechanical steering on sterndrive, anybody?

    Nidza, Nov 28, 2019
    Replies:
    4
    Views:
    4,228
    Mr Efficiency
    Nov 29, 2019
  22. jjhamm22

    Missing Oil Pressure Sender?

    jjhamm22, Mar 11, 2019
    Replies:
    12
    Views:
    4,015
    jjhamm22
    Jun 12, 2019
  23. mikealston2428

    Grounding/Earth Wire Or Strap ? Cant see where the loose end fixes to MC1 Mercruiser

    mikealston2428, Nov 21, 2018
    Replies:
    8
    Views:
    4,908
    gonzo
    Nov 23, 2018
  24. Nidza

    Sealing between transom housnig (gimbal) and hull - caulk or cork?

    Nidza, Aug 8, 2018
    Replies:
    1
    Views:
    5,848
    Nidza
    Sep 9, 2018
  25. Jaytan

    1975 Mercruiser 302 Ford - 225S

    Jaytan, Jul 28, 2018
    Replies:
    4
    Views:
    4,647
    Jaytan
    Aug 1, 2018
  26. Nidza

    What type of rubber is used for sterndrive bellows and what is their shelf-life?

    Nidza, Jun 24, 2018
    Replies:
    4
    Views:
    4,514
    7228sedan
    Jul 20, 2018
  27. Oko1978

    Mercury Alpha one Gen II Transom unit dimentions

    Oko1978, May 7, 2018
    Replies:
    2
    Views:
    3,733
    Oko1978
    May 8, 2018
  28. Jonny3777

    Anyone know how much?

    Jonny3777, Mar 12, 2018
    Replies:
    1
    Views:
    2,633
    BlueBell
    Mar 12, 2018
  29. Bert Amphibious

    Sterndrive for fast amphibious vehicle

    Bert Amphibious, Mar 1, 2018 ... 2
    Replies:
    29
    Views:
    14,851
    Nikola Webster
    Mar 4, 2021
  30. PickleRick

    Choosing alpha gear ratio for a diesel conversion

    PickleRick, Dec 15, 2017
    Replies:
    2
    Views:
    5,748
    PickleRick
    Dec 16, 2017
  31. Morris Wallace

    Yamaha sterndrive to Mercruiser sterndrive Information

    Morris Wallace, Aug 29, 2017
    Replies:
    4
    Views:
    10,923
    PAR
    Sep 1, 2017
  32. Leonard Martinez

    1990 Reinell 4.3L OMC Cobra engine assembly - exhaust manifolds?

    Leonard Martinez, Jul 30, 2017
    Replies:
    7
    Views:
    5,209
    gonzo
    Jul 31, 2017
  33. Leonard Martinez
    Locked

    Starting a new thread on help reinstalling my 4.3L Vortec

    Leonard Martinez, Jul 29, 2017
    Replies:
    8
    Views:
    3,686
    Boat Design Net Moderator
    Jul 30, 2017
  34. Dizney

    280 Volvo leg Won't go up or down unless jump it straight from the battery need help.

    Dizney, Jul 9, 2017
    Replies:
    0
    Views:
    5,279
    Dizney
    Jul 9, 2017
  35. Nidza

    Prestolite tim pump valve body assembly - a bit help anybody?

    Nidza, May 26, 2017
    Replies:
    2
    Views:
    9,275
    Nidza
    Aug 22, 2017
  36. Random_user

    Topic to learn from: coupler? Or gearbox perhaps?

    Random_user, Mar 3, 2017
    Replies:
    14
    Views:
    6,467
    gonzo
    Mar 6, 2017
  37. Art1848

    OMC Tru-Course

    Art1848, Dec 4, 2016
    Replies:
    0
    Views:
    3,438
    Art1848
    Dec 4, 2016
  38. Art1848

    Alternators

    Art1848, Jul 6, 2016
    Replies:
    14
    Views:
    8,687
    sdowney717
    Sep 27, 2016
  39. Art1848

    Piston notch position

    Art1848, Jun 23, 2016
    Replies:
    9
    Views:
    13,345
    PAR
    Jun 27, 2016
  40. Art1848

    replacing engine

    Art1848, May 23, 2016 ... 2
    Replies:
    16
    Views:
    9,331
    Art1848
    May 27, 2016
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