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 Throttle Body, 5500 GDI | PV07163

    Ilmor Throttle Body, 5500 GDI | PV07163

    Ilmor
    $350.99
    Ilmor Throttle Body, 5500 GDI | PV07163 Designed as an exact replacement for your factory-installed throttle body, this quality Ilmor service part ensures your engine continues to have the same performance you expect out of Ilmor.  
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    $350.99
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  • Ilmor Plug, SCH 3/4 | PV06534

    Ilmor Plug, SCH 3/4 | PV06534

    Ilmor
    $3.99
    Ilmor Plug, SCH 3/4 | PV06534 Made with high-quality materials that ensure OEM specified performance.    
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    $3.99
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  • Ilmor Alternator, with small pulley 2:1 transmission | 500-0065

    Ilmor Alternator, with small pulley 2:1 transmission | 500-0065

    Ilmor
    $455.99
    Ilmor Alternator, with small pulley 2:1 transmission | 500-0065 This alternator is specifically designed to work with a 2:1 transmission found on the X20 and X23 MasterCraft boats prior to MY2020.  
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    $455.99
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  • Ilmor Exhaust Manifold-Head-Gen V Gasket | PV07125

    Ilmor Exhaust Manifold-Head-Gen V Gasket | PV07125

    Ilmor
    $19.99
     Ilmor Exhaust Manifold-Head-Gen V Gasket | PV07125 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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    $19.99
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  • Ilmor Trim Pump Relay Kit | PV07816

    Ilmor Trim Pump Relay Kit | PV07816

    Ilmor
    $49.99
    Ilmor Trim Pump Relay Kit | PV07816 Designed to provide an exact replacement for the factory-installed relay on your Ilmor trim pump.  
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    $49.99
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  • Ilmor Gen V Pulley | PV07120

    Ilmor Gen V Pulley | PV07120

    Ilmor
    $69.99
    Ilmor Gen V Pulley | PV07120 The Ilmor idler pulley is built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration, and therefore longer pulley life.  
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    $69.99
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  • Ilmor Air Filter-5500GDI (5.3 G5) | 50H-0064

    Ilmor Air Filter-5500GDI (5.3 G5) | 50H-0064

    Ilmor
    $129.99
    Ilmor Air Filter-5500GDI (5.3 G5) | 50H-0064  The Ilmor flame arrestor is manufactured from the best air-filtration materials available for marine engine use. Keep your Ilmor engine operating to factory specification with this genuine Ilmor filter...
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    $129.99
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  • Ilmor Mount Assembly, Stringer Base | PE01198

    Ilmor Mount Assembly, Stringer Base | PE01198

    Ilmor
    $349.99
    Ilmor Mount Assembly, Stringer Base | PE01198 Ilmor designed stinger mount specifically created to help reduce engine vibration in your boat.  
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    $349.99
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  • Ilmor Belt Tensioner for Serial #'s 005367+ (PV06611)

    Ilmor Belt Tensioner for Serial #'s 005367+

    Ilmor
    $445.99
    Ilmor Belt Tensioner for Serial #'s 005367+ Ilmor’s belt tensioners are specifically built to outperform and outlast competitive OE parts. The heavy-duty cast aluminum spring case resists cracking and fatigue. Each component is built to resist rust,...
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    $445.99
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  • Ilmor Formed Oil Cooler/Raw Water Pump Hose | PE01481

    Ilmor Formed Oil Cooler/Raw Water Pump Hose | PE01481

    Ilmor

    $49.99
    Ilmor Formed Oil Cooler/Raw Water Pump Hose | PE01481 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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    $49.99
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  • Ilmor Drive Anode Kit | PV07805

    Ilmor Drive Anode Kit | PV07805

    Ilmor
    $249.99
    Ilmor Drive Anode Kit | PV07805 This genuine, Ilmor specified replacement sacrificial anode kit for your One-Drive. Kit includes all anode’s to service the one-drive unit.  
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    $249.99
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  • Ilmor Circ Pump to Hx Hose | 50V-0012

    Ilmor Circ Pump to Hx Hose | 50V-0012

    Ilmor
    $32.99
    Ilmor Circ Pump to Hx Hose | 50V-0012 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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    $32.99
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  • Ilmor Neutral Safety Switch | PV07392

    Ilmor Neutral Safety Switch | PV07392

    Ilmor
    $94.99
    Ilmor Neutral Safety Switch | PV07392 Designed as an exact replacement for your factory-installed Ilmor Neutral Safety Switch. This genuine Ilmor part will provide the quality and reliability you need on the water.  
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    $94.99
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  • Ilmor Cap, Schrader Valve | 1156

    Ilmor Cap, Schrader Valve | 1156

    Ilmor
    $2.99
    Ilmor Cap, Schrader Valve | 1156 Made with high-quality materals that ensure OEM specified performance.  
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    $2.99
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  • Ilmor BELT, Gen 5 Stern Drive

    Ilmor BELT, Gen 5 Stern Drive

    Ilmor
    $59.99
    Ilmor BELT, Gen 5 Stern Drive This Ilmor approved stern drive belt is designed to provide long-lasting performance and reliability. The belt has been constructed and engineered to meet the stringent demands of today’s marinized drive systems.  
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    $59.99
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  • Ilmor Distributor Assembly-HVS | 1009

    Ilmor Distributor Assembly-HVS | 1009

    Ilmor
    $289.99
    Ilmor Distributor Assembly-HVS | 1009 The Ilmor specified distributor assembly is engineered and manufactured to Ilmor’s exact OEM standards and specifications.  
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    $289.99
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