Inboard Boat Parts

Keep your inboard boat running strong with genuine replacement parts for Mastercraft, Supra, Moomba, and other top performance brands. Whether you own a ski boat, wakeboard boat, or wakesurf boat, WaterSkis.com has the inboard boat parts you need to keep your time on the water uninterrupted.

Explore our curated selection of Mastercraft boat parts, Supra boat parts, Moomba boat parts, and more—sourced from trusted OEMs and aftermarket brands known for quality, compatibility, and long-term durability. Our inventory includes engine components, electrical parts, ballast fittings, and maintenance essentials tailored to inboard boats used for watersports.

Not sure what fits your boat? Use our Boat Part Lookup Tool to match parts by make, model, and year for total confidence. At WaterSkis.com, we’re committed to helping you get back to skiing, surfing, and riding—with gear that performs when it counts.

Filters
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • MasterCraft OEM Strut MasterCraft OEM Strut
    Quick view

    MasterCraft OEM Strut - 131

    MasterCraft
    $474.99
    MasterCraft OEM Strut - 131 This genuine MasterCraft OEM Strut is model specific. Even a small bend in your strut can cause vibrations and long term damage to your drive shaft and possibly transmission. If you have a bent strut get your boat dialed back...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $474.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Strut MasterCraft OEM Strut - 195
    Quick view

    MasterCraft OEM Strut - 195

    MasterCraft
    $699.99
    MasterCraft OEM Strut - 195 This genuine MasterCraft OEM Strut is model specific. Even a small bend in your strut can cause vibrations and long term damage to your drive shaft and possibly transmission. If you have a bent strut get your boat dialed back...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $699.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 54.25"- 348 MasterCraft OEM Drive Shaft 54.25"- 348
    Quick view

    MasterCraft OEM Drive Shaft 54.25"- 348

    MasterCraft
    $1,369.99
    MasterCraft OEM Drive Shaft 54.25"- 348 This genuine MasterCraft drive shaft is 54.25 inches long by 1-1/8 inch diameter with coupler. This drive shaft is specifically designed for the LSA Engine.   **The images are of a MasterCraft Drive Shaft,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,369.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 52.5" - 345 MasterCraft OEM Drive Shaft 52.5" - 345
    Quick view

    MasterCraft OEM Drive Shaft 52.5" - 345

    MasterCraft
    $1,349.99
    MasterCraft OEM Drive Shaft 52.5" - 345 This genuine MasterCraft drive shaft is 52.5 inches long by 1-1/8 inch diameter with coupler. This drive shaft is specifically designed for the LSA Engine.   **The images are of a MasterCraft Drive Shaft,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,349.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Strut - 137 MasterCraft OEM Strut - 137
    Quick view

    MasterCraft OEM Strut - 137

    MasterCraft
    $639.99
    MasterCraft OEM Strut - 137 This genuine MasterCraft OEM Strut is model specific. Even a small bend in your strut can cause vibrations and long term damage to your drive shaft and possibly transmission. If you have a bent strut get your boat dialed back...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $639.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 48.75" - 342 MasterCraft OEM Drive Shaft 48.75" - 342MasterCraft OEM Drive Shaft 48.75" - 342
    Quick view

    MasterCraft OEM Drive Shaft 48.75" - 342

    MasterCraft
    $729.99
    MasterCraft OEM Drive Shaft 48.75" - 342 This drive shaft is measured to be 48.75 inches long by 1-1/8inch in diameter. Comes with a new prop nut and cotter pin.   **The images are of a MasterCraft Drive Shaft, however, the specific Drive Shaft may...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $729.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 50.5" - 341 MasterCraft OEM Drive Shaft 50.5" - 341
    Quick view

    MasterCraft OEM Drive Shaft 50.5" - 341

    MasterCraft
    $774.99
      MasterCraft OEM Drive Shaft 50.5" - 341 This drive shaft is measured to be 50.5 inches long by 1-1/8inch in diameter. Comes with a new prop nut and cotter pin.   **The images are of a MasterCraft Drive Shaft, however, the specific Drive Shaft...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $774.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 49" - 337 MasterCraft OEM Drive Shaft 49" - 337
    Quick view

    MasterCraft OEM Drive Shaft 49" - 337

    MasterCraft
    $754.99
    MasterCraft OEM Drive Shaft 49" - 337 This drive shaft is measured to be 49 inches long by 1-1/8inch in diameter. Comes with a new prop nut and cotter pin.   **The images are of a MasterCraft Drive Shaft, however, the specific Drive Shaft may look...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $754.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Nose Cone Strut MasterCraft OEM Nose Cone Strut
    Quick view

    MasterCraft OEM Strut - 136

    MasterCraft
    $539.99
    MasterCraft OEM Strut - 136 This genuine MasterCraft OEM Strut is model specific. Even a small bend in your strut can cause vibrations and long term damage to your drive shaft and possibly transmission. If you have a bent strut get your boat dialed back...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $539.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 57.25" - 334 MasterCraft OEM Drive Shaft 57.25" - 334
    Quick view

    MasterCraft OEM Drive Shaft 57.25" - 334

    MasterCraft
    $594.99
    MasterCraft OEM Drive Shaft 57.25" - 334 This drive shaft is measured to be 57.25 inches long by 1-1/8inch in diameter. Comes with a new prop nut and cotter pin.   **The images are of a MasterCraft Drive Shaft, however, the specific Drive Shaft may...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $594.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 54.25" - 335 MasterCraft OEM Drive Shaft 54.25" - 335
    Quick view

    MasterCraft OEM Drive Shaft 54.25" - 335

    MasterCraft
    $1,049.99
    MasterCraft OEM Drive Shaft 54.25" - 335 This drive shaft is measured to be 54.25 inches long by 1-1/8inch in diameter. Comes with a new prop nut and cotter pin.   **The images are of a MasterCraft Drive Shaft, however, the specific Drive Shaft may...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,049.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Strut - Port - 145 MasterCraft OEM Strut - Port - 145
    Quick view

    MasterCraft OEM Strut - Port - 101

    MasterCraft
    $294.99
    MasterCraft OEM Strut - Port - 101 This genuine MasterCraft OEM Strut is model specific. Even a small bend in your strut can cause vibrations and long term damage to your drive shaft and possibly transmission. If you have a bent strut get your boat...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $294.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 58" - 329 MasterCraft OEM Drive Shaft 58" - 329
    Quick view

    MasterCraft OEM Drive Shaft 58" - 329

    MasterCraft
    $975.99
    MasterCraft OEM Drive Shaft 58" - 329 This drive shaft is measured to be 58 inches long by 1-1/8inch in diameter and comes with a 5inch coupler. Comes with a new prop nut and cotter pin.   **The images are of a MasterCraft Drive Shaft, however, the...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $975.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 56.25"- 333 MasterCraft OEM Drive Shaft 56.25"- 333
    Quick view

    MasterCraft OEM Drive Shaft 56.25"- 333

    MasterCraft
    $559.99
    MasterCraft OEM Drive Shaft 56.25"- 333 This drive shaft is measured to be 56 and 1/4 inches long by 1-1/8inch in diameter. Comes with a new prop nut and cotter pin.   **The images are of a MasterCraft Drive Shaft, however, the specific Drive Shaft...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $559.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Strut - 145 MasterCraft OEM Strut - 145
    Quick view

    MasterCraft OEM Strut - 145

    MasterCraft
    $775.99
    MasterCraft OEM Strut - 145 This genuine MasterCraft OEM Strut is model specific. Even a small bend in your strut can cause vibrations and long term damage to your drive shaft and possibly transmission. If you have a bent strut get your boat dialed back...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $775.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 45.5" -327 MasterCraft OEM Drive Shaft 45.5" -327
    Quick view

    MasterCraft OEM Drive Shaft 45.5" -327

    MasterCraft
    $339.99
    MasterCraft OEM Drive Shaft 45.5" -327 This genuine MasterCraft drive shaft is 45-1/2 inches long by 1-1/8 inch diameter and is splined. Comes with a new prop nut and cotter pin. Designed for boats with a splined drive shaft.   **The images are of a...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $339.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 48 1/8" - 321 MasterCraft OEM Drive Shaft 48 1/8" - 321
    Quick view

    MasterCraft OEM Drive Shaft 48 1/8" - 321

    MasterCraft
    $749.99
    MasterCraft OEM Drive Shaft 48 1/8" - 321 This genuine MasterCraft drive shaft is 48-1/8 inches long by 1-1/8 inch diameter and is splined. Comes with a new prop nut and cotter pin. Designed for boats with a splined drive shaft.   **The images are of...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $749.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 47.5" - 320 MasterCraft OEM Drive Shaft 47.5" - 320
    Quick view

    MasterCraft OEM Drive Shaft 47.5" - 320

    MasterCraft
    $833.99
    MasterCraft OEM Drive Shaft 47.5" - 320 This genuine MasterCraft drive shaft is 47.5 inches long by 1-1/8 inch diameter and is double splined. This drive shaft is specifically designed for MasterCraft Boats. Comes with a new prop nut and cotter pin...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $833.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 51" - 328 MasterCraft OEM Drive Shaft 51" - 328
    Quick view

    MasterCraft OEM Drive Shaft 51" - 328

    MasterCraft
    $939.99
    MasterCraft OEM Drive Shaft 51" - 328  This genuine MasterCraft drive shaft is 51 inches long by 1-1/8 inch diameter with a 4inch coupler and is double splined. Comes with a new prop nut and cotter pin. Designed for boats with a splined drive shaft...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $939.99
    Subtotal:
    Add to Cart
  • MasterCraft OEM Drive Shaft 49.5" - 323 MasterCraft OEM Drive Shaft 49.5" - 323
    Quick view

    MasterCraft OEM Drive Shaft 49.5" - 323

    MasterCraft
    $1,049.99
    MasterCraft OEM Drive Shaft 49.5" - 323  This genuine MasterCraft drive shaft is 49 and one half inches long by 1-1/8 inch diameter and is double splined. Comes with a new prop nut and cotter pin. Designed for boats with a splined drive shaft.   **The...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,049.99
    Subtotal:
    Add to Cart
  • Total: items /

Adding your products to cart

View Cart Continue Shopping

Whether you're fixing a small issue or tackling a full-season tune-up, WaterSkis.com is your go-to source for inboard boat parts that match your boat and your lifestyle. We carry trusted parts for MasterCraft, Supra, Moomba, and other leading ski and wakeboard boats—all backed by our expert support. Need help finding the exact part? Use our Boat Part Lookup Tool for a fast, accurate match. And don’t forget to check out related categories like Boat Cleaning Products and Ballast System Parts to complete your setup.