Engine Parts

Keep your inboard engine running strong with premium boat engine parts from WaterSkis.com—your trusted source for Mastercraft, Supra, and Moomba boat parts. Whether you’re chasing glassy water for a morning ski session or heading out for a weekend of wakeboarding, your engine needs to be dialed in and ready to go.

Our selection includes genuine and aftermarket boat engine parts, including spark plugs, impellers, sensors, belts, filters, and more—designed specifically for Mastercraft boat engine parts, Supra boat engine parts, and Moomba engine systems. We only carry parts from trusted brands known for reliability, so you can service your engine with confidence.

Not sure what part fits your boat? Use our Boat Part Lookup Tool to find engine components by year, make, and model. At WaterSkis.com, we make it easy to get back on the water with performance-focused parts that fit right the first time.


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  • Indmar 6.2L Tensioner Assembly - 2015 Indmar 6.2L Tensioner Assembly - 2015

    Indmar 6.2L Tensioner Assembly - 2015

    Indmar
    $649.99
    Indmar 6.2L Tensioner Assembly - 2015 Indmar 597025 Tensioner Assembly for the 6.2L Raptor 2015 model year. Also used on all 575 Super Charged Engines.  
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    $649.99
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  • Indmar 6.2L Serpentine Belt | 725902

    Indmar 6.2L Serpentine Belt | 725902

    Indmar
    $119.99
    Indmar 6.2L Serpentine Belt | 725902 Indmar 725902 Serpentine Belt fits Indmar 6.2L Raptor 575 Super Charged Engine with the 95 Amp Alternator and newer 230 Amp Alternator and larger pulley.  
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    $119.99
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  • Indmar Pierburg Fuel Pump

    Indmar Pierburg Fuel Pump

    Indmar
    MSRP: $549.99
    $359.99
    Indmar Pierburg Fuel Pump For pump on engine, fuel injected engines. Also used in conversion kits for obsolete pumps.Please note: No returns will be accepted on installed fuel pump parts.   Use the boat part look up below to ensure you are...
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    MSRP: $549.99
    $359.99
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  • Indmar 6.0L Serpentine Belt | 725031

    Indmar 6.0L Serpentine Belt | 725031

    Indmar
    $69.99
    Indmar 6.0L Serpentine Belt | 725031 Indmar 725031 Serpentine Belt fits Indmar 6.0L engines (LQ9, LY6, LS2, L96). Use the boat part look up to confirm it fits your year, make and model.  
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    $69.99
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  • Indmar Transmission Cooler 9" STD w/O-Ring Thread

    Indmar Transmission Cooler 9" STD w/O-Ring Thread

    Indmar
    $299.99
      Indmar Transmission Cooler 9" STD w/O-Ring Thread 9" Transmission Cooler with O-Ring Thread. Use the boat part look up below to ensure you are purchasing the correct part for your boat.
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    $299.99
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  • Indmar Gasket Monovalve 4 Bolt

    Indmar Gasket Monovalve 4 Bolt

    Indmar
    $9.99
    Indmar Gasket Monovalve 4 Bolt Monovalve gasket for 4 bolt Chevrolet electronic monovalve
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    $9.99
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  • Indmar Gasket TBI Throttle Body

    Indmar Gasket TBI Throttle Body

    Indmar
    $74.99
      Indmar Gasket TBI Throttle Body Chevrolet throttle body injection gasket - TBI
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    $74.99
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  • Indmar Gasket Intake to Plenum

    Indmar Gasket Intake to Plenum

    Indmar
    $24.99
    Indmar Gasket Intake to Plenum Plenum gasket for 2-piece small block Chevrolet intake.
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    $24.99
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  • Indmar Formed Hose - Chevy 350

    Indmar Formed Hose - Chevy 350

    Indmar
    $44.99
    Indmar Formed Hose - Chevy 350 1-1/4" Formed Hose from water pump to thermostat housing on Chevy 5.7L engines. Use the boat part look up below to ensure you are purchasing the correct part for your boat.
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    $44.99
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  • Ilmor FEAD/Tensioner Conversion Kit

    Ilmor FEAD/Tensioner Conversion Kit

    Ilmor
    $699.99
      Ilmor FEAD/Tensioner Conversion Kit This conversion kit replaces the tensioner and FEAD bracket on 2010-2016 5.7L Ilmor engines. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $699.99
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  • Ilmor Raw Water Pump to Power Steering Heat Exchanger Hose | 50T-0066

    Ilmor Raw Water Pump to Power Steering Heat Exchanger Hose | 50T-0066

    Ilmor
    $39.99
      Ilmor Raw Water Pump to Power Steering Heat Exchanger Hose | 50T-0066 This genuine Ilmor molded hose is specifically manufactured to fit your engine and is made from the highest quality materials ensuring reliability and durability.  
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    $39.99
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  • Indmar "J" Hose w/Spring for 305/350

    Indmar "J" Hose w/Spring for 305/350

    Indmar
    $79.99
    Indmar "J" Hose w/Spring for 305/350 Use the boat part look up below to ensure you are purchasing the correct part for your boat.
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    $79.99
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  • Ilmor Belt | MY2020+ GDI Ilmor Belt | MY2020+ GDI

    Ilmor Belt | MY2020+ GDI

    Ilmor
    $59.99
    Ilmor Belt | MY2020+ GDI This Ilmor specified belt keeps your accessory drive running and is made of top quality materials to ensure a long service life. Specifically designed by Ilmor for the MY2020+ GDI engines with crank driven water pump. Use the...
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    $59.99
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  • Indmar Complete Gasket Kit - 5.7L Vortec MPI

    Indmar Complete Gasket Kit - 5.7L Vortec MPI

    Indmar
    $499.99
    Indmar Complete Gasket Kit - 5.7L Vortec MPI INDMAR 5.7 GASKET SET INCLUDES GASKETS AND SEALS:INTAKE, RISERS, WATER PUMP, VALVE COVERS, HEAD, OIL DRAIN, THERMOSTAT UPPER AND LOWER, REAR SEAL AND RETAINER, OIL PAN, THROTTLE BODY, INTAKE TO PLENUM, FRONT...
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    $499.99
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  • Indmar 350 Exhaust Manifold Indmar 350 Exhaust Manifold (No-Name)

    Indmar 350 Exhaust Manifold

    Indmar
    $799.99
    Indmar 350 Exhaust Manifold  CHEVROLET SMALL BLOCK CENTER RISER EXHAUST MANIFOLD Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
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    $799.99
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  • Indmar Hose Replacement Kit RWP to Cooler

    Indmar Hose Replacement Kit RWP to Cooler

    Indmar
    $97.25
    Indmar Hose Replacement Kit RWP to Cooler Replacement hose kit raw water pump to cooler. For V-Drive Chevrolet small block engines.
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    $97.25
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  • Indmar Exhaust Riser Gasket

    Indmar Exhaust Riser Gasket

    Indmar
    $6.99
    Indmar Exhaust Riser Gasket Indmar exhaust to manifold riser gasket. Used on GM 5.7L small block engines. This part is commonly found in MasterCraft, Supra, Moomba and Malibu boats. Use the boat part look up below to ensure you are purchasing the correct...
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    $6.99
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  • Indmar Throttle Body Gasket 75MM 1V

    Indmar Throttle Body Gasket 75MM 1V

    Indmar
    $29.99
    Indmar Throttle Body Gasket 75MM 1V Chevrolet Throttle Body Gasket for 3 Bolt Monovalves.
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    $29.99
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  • Indmar Monovalve Throttle Body TBU 6.0 Gram

    Indmar Monovalve Throttle Body TBU 6.0 Gram

    Indmar
    $399.99
      Indmar Monovalve Throttle Body TBU 6.0 Gram Chevrolet 3 Bolt Manual Throttle Monovalve Also need to purchase a new gasket - Indmar Throttle Body Gasket 75MM 1V
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    $399.99
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