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Shaft & Strut Hardware

Marine struts help to minimize shaft movement and water flow disturbance on your watercraft. Marine propeller shafts transmit the engine's torque to the propeller. Both are crucial components designed for the propellers on recreational and pleasure powerboats. At Discount Inboard Marine, we have a wide selection of propeller strut and shaft hardware for a variety of inboard boat models. We are committed to helping you keep your boat running at its very best, with the very best products on the market. For more information about marine propeller shafts and struts, and to find the right products for your needs, reach out today. 

  • DRIPLESS WATER COOLING KIT FOR 1-1/4"

    DRIPLESS WATER COOLING KIT FOR 1-1/4"

    Kit includes  3/8 water line, hose clamps, and stainless t-fitting. Used when installing a dripless seal kit requiring cooling water and boat has 1-1/4'' ID water hose. Used on the pressure side of the raw water pump.  
    $41.75
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  • STRUT SUPRA 15 DEGREE (SEF 1051L) L=LONG

    STRUT SUPRA 15 DEGREE (SEF 1051L) L=LONG

    Used on some Supra's with 454 and 1" shaft. Also used on some direct drive Moomba's with 1" shafts (not V-drive). Includes new strut bearings, Sunsport, Outback LS. *Careful, this is a SEF1051L, there is also an SEF1051 (C/O Outback and Boomerang) not on...
    $370.00
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  • STRUT, MALIBU 1997 UP

    STRUT, MALIBU 1997 UP

    A few late 1996 models may have this 16 degree strut, fits most 97 up Malibu and Axis boats but will NOT fit XTI or FXI models. The previous strut with 1-1/8" shaft used from 1993 thru 1996 was a 15.45 degree strut PT# MLBU000358 (special order)...
    $703.73
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  • STRUT, MASTERCRAFT 1986 UP 1-1/8 IN

    STRUT, MASTERCRAFT 1986 UP 1-1/8 IN

    8 Mounting holes 16 degree (Includes brass shelled rubber strut bearings). Fits 1986 up Mastercraft boats with powerslot or V-drive 1-1/8" shafts. Or, all 2003+ splined shaft. This is an aftermarket strut and will not have Mastercraft on the side...
    $703.73
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  • STRUT, MASTERCRAFT 1986 UP 1"

    STRUT, MASTERCRAFT 1986 UP 1"

    This strut measures 7-3/4" high from mounting base to bottom of the barrel at the prop end. This is an aftermarket strut and will not have Mastercraft on the side. Note: Replacement strut bushing outside diameter will now be 1" X 1-3/8" no longer 1"...
    $703.73
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  • STRUT MOOMBA/SUPRA 1-1/8 BORE 15 DEGREE

    STRUT MOOMBA/SUPRA 1-1/8 BORE 15 DEGREE

    Most V-drive Supra and Moomba V-drive thru 2022 with 1-1/8" shaft, has SEF1050 (15 degree) stamped into side. Includes new strut bearings. Boats 2023 and up use Pt#121306 (special order) Supersedes #121306 Bin Number (ISBN): 60813
    $384.90
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  • STRUT SUPRA 14 DEGREE, 1IN. SHAFT

    STRUT SUPRA 14 DEGREE, 1IN. SHAFT

    Includes Bushings, Comp, Some Mariah's and older Sunsport's (Should be stamped with a 14).   Includes strut bushings, fits Supra Comp, some Sunsports and Maria's. Old strut should be marked with a 14 on the side, has a 6-1/2" drop. The distance...
    $351.00
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  • STRUT CENTURION BOATS 1998 UP STRUT CENTURION BOATS 1998 UP

    STRUT CENTURION BOATS 1998 UP

    STSL 16 degree strut fits Centurion 1998+ boats with a 1-1/8" shaft. 6 hole bolt pattern and includes brass bushings. Will not replace STSL18581, for older Centurion struts call or email for availability  
    $703.73
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  • DRIVE SHAFT COUPLING BOLT SET

    DRIVE SHAFT COUPLING BOLT SET

    3/8-16 x 1-1/4" (Nylock nuts) S30400 stainless, Velvet Drive coupler and PCM 40 series. Not lomg enough for 2013 and newer PCM 80 series transmissions with 1/2" thick flanges.     Bin Number (ISBN): 2232
    $14.00
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  • KEY STRAIGHT BRASS

    KEY STRAIGHT BRASS

    1/4" SQ x 2" L Prop Key, may have to cut length to fit some newer boats. The chamfered or radius side goes towards the shaft and the straight edged side fits into prop.   Brass Key. D.I.M. has a large selection of nuts, keys, and cotter pins...
    $11.67
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