Inboard Boat Parts

Get the performance and reliability your inboard boat demands with premium replacement parts from WaterSkis.com. Whether you’re maintaining a MasterCraft, Supra, or Moomba boat, we offer a wide selection of genuine and OEM-compatible inboard boat parts to keep your engine, drivetrain, and cooling systems running strong.

From impellers and ignition components to thermostats and transmission parts, every item in this category is curated for quality, compatibility, and long-lasting performance. Not sure where to start? Use our Boat Part Lookup Tool to instantly find the exact part you need for your specific make, model, and engine configuration.

At WaterSkis.com, we know your time on the water matters. That’s why we make it easy to find the right boat parts—fast, accurate, and backed by real-world expertise.

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  • GPS & Zero Off Dash Antenna
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    GPS & Zero Off Dash Antenna

    Skiers Choice
    $1,549.99
    GPS & Zero Off Dash Antenna If you are having issues with your GPS Cruise control dropping out this could be your solution. This is a direct replacement for Supra and Moomba Boats. Use the boat part look up below to ensure you are purchasing the...
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    $1,549.99
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  • Mastercraft 8" Text Decal - White
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    Mastercraft 8" Text Decal - White

    MasterCraft
    $7.99
    Mastercraft 8" Text Decal - White Wherever life takes you, take your pride in Mastercraft boats on the road and accessorize with the MasterCraft Text White Decal.
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    $7.99
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  • OJ Prop 14X20-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 OJ Prop 14X20-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 14X20-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $566.00
    $552.50
    OJ Prop 14X20-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
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    Qty in Cart: 0
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    MSRP: $566.00
    $552.50
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  • OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90
    Quick view

    OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90

    OJ Props
    MSRP: $566.00
    $552.50
    OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
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    Qty in Cart: 0
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    Price:
    MSRP: $566.00
    $552.50
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  • OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $566.00
    $552.50
    OJ Prop 14X18-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $566.00
    $552.50
    Subtotal:
    Add to Cart
  • OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90
    Quick view

    OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90

    OJ Props
    MSRP: $566.00
    $552.50
    OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $566.00
    $552.50
    Subtotal:
    Add to Cart
  • OJ Prop 14X16-4 Blade | Keyed | Bore 1" | RH | 0.90 OJ Prop 14X16-4 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 14X16-4 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $566.00
    $552.50
    OJ Prop 14X16-4 Blade | Keyed | Bore 1" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $566.00
    $552.50
    Subtotal:
    Add to Cart
  • OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $566.00
    $552.50
    OJ Prop 14X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $566.00
    $552.50
    Subtotal:
    Add to Cart
  • OJ Prop 14X16-4 Blade | Keyed | Bore 1" | LH | 0.90 OJ Prop 14X16-4 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 14X16-4 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $566.00
    $552.50
    OJ Prop 14X16-4 Blade | Keyed | Bore 1" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $566.00
    $552.50
    Subtotal:
    Add to Cart
  • OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90
    Quick view

    OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X16-4 Blade | Keyed | Bore 1" | RH | 0.90 OJ Prop 13X16-4 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 13X16-4 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X16-4 Blade | Keyed | Bore 1" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X16-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90
    Quick view

    OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X14-4 Blade | Keyed | Bore 1" | RH | 0.90 OJ Prop 13X14-4 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 13X14-4 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X14-4 Blade | Keyed | Bore 1" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X14-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X14-4 Blade | Keyed | Bore 1" | LH | 0.90 OJ Prop 13X14-4 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 13X14-4 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X14-4 Blade | Keyed | Bore 1" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X14-4 Blade | Splined | Bore 1 1/8" | LH | 0.90 OJ Prop 13X14-4 Blade | Splined | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 13X14-4 Blade | Splined | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
      OJ Prop 13X14-4 Blade | Splined | Bore 1 1/8" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X13-4 Blade | Keyed | Bore 1" | RH | 0.90 OJ Prop 13X13-4 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 13X13-4 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X13-4 Blade | Keyed | Bore 1" | RH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X13-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 OJ Prop 13X13-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 13X13-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X13-4 Blade | Keyed | Bore 1 1/8" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
  • OJ Prop 13X13-4 Blade | Keyed | Bore 1" | LH | 0.90 OJ Prop 13X13-4 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 13X13-4 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $544.00
    $531.25
    OJ Prop 13X13-4 Blade | Keyed | Bore 1" | LH | 0.90 Like its predecessor, The LEGEND 3-blade, The FORCE 4-BLADE is a strong and affordable performer. The FORCE 4-Blade was the first 4-blade introduced that provided the tournament tow boat a strong,...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $544.00
    $531.25
    Subtotal:
    Add to Cart
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At WaterSkis.com, we combine deep product knowledge with industry-leading tools to help boat owners find the exact inboard boat parts they need. Whether you're working on a MasterCraft, Supra, or Moomba, our parts deliver the fit and reliability you can trust.

Use our Boat Part Lookup Tool to simplify your search, or explore related categories like cooling systems, engine components, and ignition parts. We’ve got everything you need to keep your boat running at its best.