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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  • Ilmor Brass Plug 1/4 | 1090

    Ilmor Brass Plug 1/4 | 1090

    Ilmor
    $4.99
    Ilmor Brass Plug 1/4 | 1090 Genuine Ilmor 1/4″ brass plug is made from top quality materials to ensure a long-lasting life of the plug.  
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    $4.99
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  • Ilmor High Pressure Fuel Filter | PV07863

    Ilmor High Pressure Fuel Filter | PV07863

    Ilmor
    $45.99
    Ilmor High Pressure Fuel Filter | PV07863 Ilmor’s high-pressure fuel filter keeps your engine running at peak performance. With this filter, you can count on delivering the purest gas, ensuring your injectors’ long-lasting protection...
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    $45.99
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  • Ilmor Raw Water Pump Key | PV05722

    Ilmor Raw Water Pump Key | PV05722

    Ilmor
    $9.99
    Ilmor Raw Water Pump Key | PV05722 The genuine Ilmor raw water pump key is specially designed to fit original factory specifications providing you a fit you can count on.  
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  • Ilmor Idler Pulley | PV06693

    Ilmor Idler Pulley | PV06693

    Ilmor

    $29.99
    Ilmor Idler Pulley | PV06693 The Ilmor idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration, longer pulley life and therefore longer pulley life.  
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  • Ilmor Fuel Injector Assembly | 1095

    Ilmor Fuel Injector Assembly | 1095

    Ilmor
    $179.99
    Ilmor Fuel Injector Assembly | 1095 This Ilmor specified fuel injector assembly is our recommended replacement for your engine’s original component.  
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    $179.99
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  • Ilmor Water Pump Gasket | PV06732

    Ilmor Water Pump Gasket | PV06732

    Ilmor
    $10.99
    Ilmor Water Pump Gasket | PV06732 This Ilmor water pump gasket features quality materials to give you a sealing solution needed to maintain OEM specified reliability and durability.  
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    $10.99
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  • Ilmor Thermostat Flat Rubber Gasket | 500-0044

    Ilmor Thermostat Flat Rubber Gasket | 500-0044

    Ilmor
    $4.99
    Ilmor Thermostat Flat Rubber Gasket | 500-0044 This Ilmor flat rubber thermostat gasket consists of quality materials to give you a sealing solution with performance and reliability you can trust.  
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    $4.99
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  • Ilmor Stainless Freeze Plug | PV05997

    Ilmor Stainless Freeze Plug | PV05997

    Ilmor
    $1.99
    Ilmor Stainless Freeze Plug | PV05997 The Ilmor stainless steel freeze plug features a concave design to ensure a leak-proof fit for your engine.  
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    $1.99
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  • Ilmor Idler Pulley | PV06474

    Ilmor Idler Pulley | PV06474

    Ilmor
    $44.99
    Ilmor Idler Pulley | PV06474 The Ilmor idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration, and therefore longer pulley life.  
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    $44.99
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  • Ilmor Fuel Injector Assembly | 1011

    Ilmor Fuel Injector Assembly | 1011

    Ilmor
    $111.99
    Ilmor Fuel Injector Assembly | 1011 This Ilmor specified fuel injector assembly is our recommended replacement for your engine’s original component.  
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    $111.99
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  • Ilmor Exhaust Manifold to Head Gasket | 1057

    Ilmor Exhaust Manifold to Head Gasket | 1057

    Ilmor
    $55.99
    Ilmor Exhaust Manifold to Head Gasket | 1057 Ilmor exhaust manifold gasket gaskets offer factory specified materials to give you sealing solutions with the performance and durability you can rely on.  
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  • Ilmor 20PSI Pressure Cap | PV07058

    Ilmor 20PSI Pressure Cap | PV07058

    Ilmor
    $14.99
    Ilmor 20PSI Pressure Cap | PV07058 A faulty coolant system cap can cause your boat to boil-over at a lower temperature. With the Ilmor 20 PSI pressure cap, you can rest easy knowing that proper pressure will be maintained. Ilmor recommends that you test...
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  • Ilmor 6.0L MPI Thermostat Kit | KT1438

    Ilmor 6.0L MPI Thermostat Kit | KT1438

    Ilmor
    $79.99
    Ilmor 6.0L MPI Thermostat Kit | KT1438 Have a boat engine that doesn’t seem to heat up? A lot of times, that problem is caused by a worn-out thermostat. Replace those failing thermostats and seals with this kit specifically designed to fit your...
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    $79.99
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  • Ilmor Coil Wires | PL00385

    Ilmor Coil Wires | PL00385

    Ilmor
    $84.99
    Ilmor Coil Wires | PL00385 Ilmor’s premium quality coil wires are the recommended replacement for your Ilmor engine. Constructed using the highest quality silicone, these wires protect against harsh engine compartment conditions that degrade wires...
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    $84.99
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  • Ilmor Breaker, 50 AMP Manual Reset | PV06101

    Ilmor Breaker, 50 AMP Manual Reset | PV06101

    Ilmor
    $59.99
    Ilmor Breaker, 50 AMP Manual Reset | PV06101 This Ilmor approved 50 breaker is a direct replacement for all Ilmor 50 AMP manual reset breakers.  
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    $59.99
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  • Ilmor Exhaust Manifold Mounting Gasket | 1054

    Ilmor Exhaust Manifold Mounting Gasket | 1054

    Ilmor
    $24.99
    Ilmor Exhaust Manifold Mounting Gasket | 1054 Stop power robbing exhaust leaks with this premium Ilmor exhaust manifold mounting gasket. Made to be a perfect fit with your engine and featuring a reinforced design to help eliminate heat cracking and...
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    $24.99
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  • Ilmor O-Ring, Plenum Mounting N1470-70

    Ilmor O-Ring, Plenum Mounting N1470-70

    Ilmor
    $2.99
    Ilmor O-Ring, Plenum Mounting N1470-70 The Ilmor plenum mounting o-ring is designed for the best performance and reliability for your boat. It is manufactured using the same high-quality materials used when your engine first comes off the line.  
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    $2.99
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