Underwater Gear

Keep your boat running smooth and tracking true with precision underwater gear from WaterSkis.com. Whether you're replacing a worn Mastercraft drive shaft, upgrading a Moomba rudder, or sourcing an exact-fit Supra strut, we carry genuine OEM and compatible parts built to match factory performance. This category includes critical inboard components like drive shafts, struts, rudders, and other hardware essential to your boat’s handling and power delivery.

Need to find the right part fast? Use our Boat Part Lookup Tool to identify inboard boat underwater gear for your exact year, make, and model—no guesswork required. We stock parts for top ski and wake brands, including Mastercraft, Moomba, and Supra, with quality you can trust in deep water or shallow turns.

For smooth rides and confident control, trust WaterSkis.com for the underwater gear that keeps your boat performing its best.

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  • OJ Prop 14X14-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 14X14-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $517.00
    $461.55
    OJ Prop 14X14-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $517.00
    $461.55
    Subtotal:
    Add to Cart
  • OJ Prop 14X14-3 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 14X14-3 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $517.00
    $461.55
    OJ Prop 14X14-3 Blade | Keyed | Bore 1" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $517.00
    $461.55
    Subtotal:
    Add to Cart
  • OJ Prop 14X13-3 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 14X13-3 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $517.00
    $461.55
    OJ Prop 14X13-3 Blade | Keyed | Bore 1" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $517.00
    $461.55
    Subtotal:
    Add to Cart
  • OJ Prop 13X15-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 13X15-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $466.00
    $416.50
    OJ Prop 13X15-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $466.00
    $416.50
    Subtotal:
    Add to Cart
  • OJ Prop 13X15-3 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 13X15-3 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $466.00
    $416.50
    OJ Prop 13X15-3 Blade | Keyed | Bore 1" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $466.00
    $416.50
    Subtotal:
    Add to Cart
  • OJ Prop 13X14-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 13X14-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $466.00
    $416.50
    OJ Prop 13X14-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $466.00
    $416.50
    Subtotal:
    Add to Cart
  • OJ Prop 13X14-3 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 13X14-3 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props

    MSRP: $466.00
    $416.50
    OJ Prop 13X14-3 Blade | Keyed | Bore 1" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $466.00
    $416.50
    Subtotal:
    Add to Cart
  • OJ Prop 13X13-3 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 13X13-3 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $466.00
    $416.50
    OJ Prop 13X13-3 Blade | Keyed | Bore 1" | RH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $466.00
    $416.50
    Subtotal:
    Add to Cart
  • OJ Prop 13X13-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 13X13-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $466.00
    $416.50
    OJ Prop 13X13-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $466.00
    $416.50
    Subtotal:
    Add to Cart
  • OJ Prop 12X16-3 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 12X16-3 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X16-3 Blade | Keyed | Bore 1" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 12X15-3 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 12X15-3 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X15-3 Blade | Keyed | Bore 1" | RH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 12X15-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 12X15-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X15-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 12X14-3 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 12X14-3 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X14-3 Blade | Keyed | Bore 1" | RH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 12X14-3 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 12X14-3 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X14-3 Blade | Keyed | Bore 1" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 12X13-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90
    Quick view

    OJ Prop 12X13-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X13-3 Blade | Keyed | Bore 1 1/8" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 12X13-3 Blade | Keyed | Bore 1" | RH | 0.90
    Quick view

    OJ Prop 12X13-3 Blade | Keyed | Bore 1" | RH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X13-3 Blade | Keyed | Bore 1" | RH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 12X13-3 Blade | Keyed | Bore 1" | LH | 0.90
    Quick view

    OJ Prop 12X13-3 Blade | Keyed | Bore 1" | LH | 0.90

    OJ Props
    MSRP: $442.00
    $395.25
    OJ Prop 12X13-3 Blade | Keyed | Bore 1" | LH | 0.90 The name speaks for itself. The original LEGEND is a design handed down from the originator, Oscar Johnson. This hand crafted 3-blade has been a consistent performer for many years. The LEGEND 3-blade...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $442.00
    $395.25
    Subtotal:
    Add to Cart
  • OJ Prop 15X12.5-4 Blade | Keyed | Bore 1 1/8" | LH | 0.120
    Quick view

    OJ Prop 15X12.5-4 Blade | Keyed | Bore 1 1/8" | LH | 0.120

    OJ Props
    MSRP: $828.00
    $725.05
    OJ Prop 15X12.5-4 Blade | Keyed | Bore 1 1/8" | LH | 0.120 By refining OJ Propellers original superior design, they have produced their finest performing line of propellers. The Wakepro V-3 propellers boast an enhanced pitch distribution along with a...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $828.00
    $725.05
    Subtotal:
    Add to Cart
  • OJ Prop 15X14-4 Blade | Keyed | Bore 1 1/8" | LH | 0.130
    Quick view

    OJ Prop 15X14-4 Blade | Keyed | Bore 1 1/8" | LH | 0.130

    OJ Props
    MSRP: $828.00
    $725.05
    OJ Prop 15X14-4 Blade | Keyed | Bore 1 1/8" | LH | 0.130 By refining OJ Propellers original superior design, they have produced their finest performing line of propellers. The Wakepro V-3 propellers boast an enhanced pitch distribution along with a new...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $828.00
    $725.05
    Subtotal:
    Add to Cart
  • OJ Prop 15X13-4 Blade | Keyed | Bore 1 1/8" | LH | 0.130
    Quick view

    OJ Prop 15X13-4 Blade | Keyed | Bore 1 1/8" | LH | 0.130

    OJ Props
    MSRP: $828.00
    $725.05
    OJ Prop 15X13-4 Blade | Keyed | Bore 1 1/8" | LH | 0.130 By refining OJ Propellers original superior design, they have produced their finest performing line of propellers. The Wakepro V-3 propellers boast an enhanced pitch distribution along with a new...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $828.00
    $725.05
    Subtotal:
    Add to Cart
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