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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  1. montero

    Mercruiser Alpha 1 gen 2

    montero, Oct 2, 2025 ... 2
    Replies:
    18
    Views:
    1,509
    gonzo
    Oct 11, 2025
  2. montero

    Outdrive ratio

    montero, Sep 6, 2025 ... 2
    Replies:
    22
    Views:
    3,235
    montero
    Sep 16, 2025
  3. Soir

    Volvo AQ280 single prop to Duo prop lower

    Soir, Jul 18, 2025
    Replies:
    0
    Views:
    841
    Soir
    Jul 18, 2025
  4. dinoa

    Stern Powr Parts

    dinoa, Feb 11, 2015
    Replies:
    2
    Views:
    10,928
    Laurence Bellamy
    Aug 3, 2024
  5. Masterful

    Volvo D4 DPI on a 30 ft cat

    Masterful, Aug 1, 2024
    Replies:
    4
    Views:
    1,477
    Masterful
    Aug 3, 2024
  6. SoccerGuy3

    OMC Stringer Transom Seal / Boot Replacement Problem

    SoccerGuy3, Jun 17, 2024
    Replies:
    4
    Views:
    2,373
    SoccerGuy3
    Jun 19, 2024
  7. Nidza

    Welded metal belows - would that work for sterndrive?

    Nidza, Oct 18, 2023
    Replies:
    4
    Views:
    3,742
    Nidza
    Oct 20, 2023
  8. Ryan Shultz

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

    Ryan Shultz, Sep 9, 2023
    Replies:
    7
    Views:
    3,296
    gonzo
    Sep 11, 2023
  9. RSD

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

    RSD, Jan 3, 2023
    Replies:
    11
    Views:
    5,226
    DogCavalry
    Jan 6, 2023
  10. Steve_123

    Help identifying stern drive

    Steve_123, Nov 28, 2022
    Replies:
    1
    Views:
    2,215
    baeckmo
    Nov 28, 2022
  11. DogCavalry

    Help identifying old sterndrives

    DogCavalry, Aug 5, 2021 ... 2
    Replies:
    16
    Views:
    7,987
    fallguy
    Aug 8, 2021
  12. DogCavalry

    It's enough to make you cry

    DogCavalry, Mar 8, 2021 ... 2
    Replies:
    15
    Views:
    4,606
    DogCavalry
    Mar 9, 2021
  13. Bert Amphibious

    Sterndrive for fast amphibious vehicle

    Bert Amphibious, Mar 1, 2018 ... 2
    Replies:
    29
    Views:
    15,119
    Nikola Webster
    Mar 4, 2021
  14. Mark TR

    Mercruiser 188/888 starting and running but no thrust

    Mark TR, Nov 3, 2020
    Replies:
    11
    Views:
    4,798
    Ike
    Nov 5, 2020
  15. DCockey

    New Mercury forward face prop sterndrive

    DCockey, Aug 24, 2020
    Replies:
    7
    Views:
    3,283
    gonzo
    Aug 29, 2020
  16. SHalla

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

    SHalla, Jun 11, 2020
    Replies:
    2
    Views:
    2,864
    SHalla
    Aug 22, 2020
  17. Bobby Johns

    Engine swap expertise

    Bobby Johns, Jul 7, 2020
    Replies:
    1
    Views:
    2,507
    brendan gardam
    Jul 7, 2020
  18. malfar

    Mercruiser shifter problem - shifter box

    malfar, Jul 2, 2007
    Replies:
    5
    Views:
    11,974
    knots
    Jun 10, 2020
  19. Squirrelmaster

    OMC 190hp sterndrive

    Squirrelmaster, Apr 28, 2020
    Replies:
    7
    Views:
    5,487
    Squirrelmaster
    Apr 29, 2020
  20. clark

    alignment issues

    clark, Apr 20, 2020
    Replies:
    4
    Views:
    2,566
    clark
    Apr 20, 2020
  21. 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:
    4,855
    Chris A Farwell
    Apr 7, 2020
  22. kalo76

    Request for assistance for the installation of two Sterndrives?

    kalo76, Mar 26, 2020
    Replies:
    14
    Views:
    3,744
    gonzo
    Apr 2, 2020
  23. scotch&water

    Black art?

    scotch&water, Dec 30, 2019 ... 3 4 5
    Replies:
    74
    Views:
    12,682
    gonzo
    Jan 8, 2020
  24. Nidza

    Mechanical steering on sterndrive, anybody?

    Nidza, Nov 28, 2019
    Replies:
    4
    Views:
    4,283
    Mr Efficiency
    Nov 29, 2019
  25. jjhamm22

    Missing Oil Pressure Sender?

    jjhamm22, Mar 11, 2019
    Replies:
    12
    Views:
    4,068
    jjhamm22
    Jun 12, 2019
  26. mikealston2428

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

    mikealston2428, Nov 21, 2018
    Replies:
    8
    Views:
    4,967
    gonzo
    Nov 23, 2018
  27. Nidza

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

    Nidza, Aug 8, 2018
    Replies:
    1
    Views:
    5,903
    Nidza
    Sep 9, 2018
  28. H180DSC

    Omc 120 3000 Rpm At Full Load?

    H180DSC, Sep 22, 2009 ... 2 3
    Replies:
    36
    Views:
    29,802
    powerabout
    Aug 22, 2018
  29. Jaytan

    1975 Mercruiser 302 Ford - 225S

    Jaytan, Jul 28, 2018
    Replies:
    4
    Views:
    4,692
    Jaytan
    Aug 1, 2018
  30. Nidza

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

    Nidza, Jun 24, 2018
    Replies:
    4
    Views:
    4,553
    7228sedan
    Jul 20, 2018
  31. wireguy

    Prop size

    wireguy, Jul 9, 2007
    Replies:
    5
    Views:
    6,042
    Mr Efficiency
    Jul 12, 2018
  32. Oko1978

    Mercury Alpha one Gen II Transom unit dimentions

    Oko1978, May 7, 2018
    Replies:
    2
    Views:
    3,779
    Oko1978
    May 8, 2018
  33. Jonny3777

    Anyone know how much?

    Jonny3777, Mar 12, 2018
    Replies:
    1
    Views:
    2,668
    BlueBell
    Mar 12, 2018
  34. PickleRick

    Choosing alpha gear ratio for a diesel conversion

    PickleRick, Dec 15, 2017
    Replies:
    2
    Views:
    5,818
    PickleRick
    Dec 16, 2017
  35. Morris Wallace

    Yamaha sterndrive to Mercruiser sterndrive Information

    Morris Wallace, Aug 29, 2017
    Replies:
    4
    Views:
    11,004
    PAR
    Sep 1, 2017
  36. Nidza

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

    Nidza, May 26, 2017
    Replies:
    2
    Views:
    9,329
    Nidza
    Aug 22, 2017
  37. Leonard Martinez

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

    Leonard Martinez, Jul 30, 2017
    Replies:
    7
    Views:
    5,280
    gonzo
    Jul 31, 2017
  38. Leonard Martinez
    Locked

    Starting a new thread on help reinstalling my 4.3L Vortec

    Leonard Martinez, Jul 29, 2017
    Replies:
    8
    Views:
    3,747
    Boat Design Net Moderator
    Jul 30, 2017
  39. 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:
    5,323
    Dizney
    Jul 9, 2017
  40. tom kane

    Most Efficient Boat Propulsion

    tom kane, Dec 4, 2014 ... 10 11 12
    Replies:
    178
    Views:
    56,843
    OCB
    May 6, 2017
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