Inboard Boat Parts

Keep your inboard boat running strong with genuine replacement parts for Mastercraft, Supra, Moomba, and other top performance brands. Whether you own a ski boat, wakeboard boat, or wakesurf boat, WaterSkis.com has the inboard boat parts you need to keep your time on the water uninterrupted.

Explore our curated selection of Mastercraft boat parts, Supra boat parts, Moomba boat parts, and more—sourced from trusted OEMs and aftermarket brands known for quality, compatibility, and long-term durability. Our inventory includes engine components, electrical parts, ballast fittings, and maintenance essentials tailored to inboard boats used for watersports.

Not sure what fits your boat? Use our Boat Part Lookup Tool to match parts by make, model, and year for total confidence. At WaterSkis.com, we’re committed to helping you get back to skiing, surfing, and riding—with gear that performs when it counts.


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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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  • 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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  • Ilmor Cap, Tank Degas | 1222

    Ilmor Cap, Tank Degas | 1222

    Ilmor
    $32.99
    Ilmor Cap, Tank Degas | 1222 This Ilmor degas tank cap is a perfect fit for your Ilmor engine and will ensure like-new performance and reliability.  
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  • Ilmor Tensioner, MV8 GDI Drive Belt | PV07111

    Ilmor Tensioner, MV8 GDI Drive Belt | PV07111

    Ilmor
    $139.99
    Ilmor Tensioner, MV8 GDI Drive Belt | PV07111 The Ilmor tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration, and longer pulley life.    
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    $139.99
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  • Ilmor Fitting, #6 Plug | 1476

    Ilmor Fitting, #6 Plug | 1476

    Ilmor
    $22.99
    Ilmor Fitting, #6 Plug | 1476 Made with high-quality materials that ensure OEM specified performance.  
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    $22.99
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  • Ilmor Engine Mount-Stringer Adjustable Tall | PV06415

    Ilmor Engine Mount-Stringer Adjustable Tall | PV06415

    Ilmor
    $97.25
    Ilmor Engine Mount-Stringer Adjustable Tall | PV06415 These Ilmor engineered heavy-duty boat engine stringer mounts are specifically designed to provide an ideal clearance between your mount platform and your engine  
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    $97.25
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  • Ilmor Oil Fill Plug Gasket | PV07399

    Ilmor Oil Fill Plug Gasket | PV07399

    Ilmor
    $6.99
    Ilmor Oil Fill Plug Gasket | PV07399 The Ilmor approved oil fill plug gasket are made to ensure a proper, leak-free seal within the oil filter mount.  
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    $6.99
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  • Ilmor Remote Oil Filter Mount | PE01917

    Ilmor Remote Oil Filter Mount | PE01917

    Ilmor
    $114.99
    Ilmor Remote Oil Filter Mount | PE01917 Ilmor genuine replacement part provides an exact fit for your factory remote oil filter mount.  
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    $114.99
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  • Ilmor Throttle Body, 6000 GDI | PV07164

    Ilmor Throttle Body, 6000 GDI | PV07164

    Ilmor
    $299.99
    Ilmor Throttle Body, 6000 GDI | PV07164 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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    $299.99
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  • Ilmor Air Filter 6000GDI (6.2 G5) | 50H-0063

    Ilmor Air Filter 6000GDI (6.2 G5) | 50H-0063

    Ilmor
    $149.99
    Ilmor Air Filter 6000GDI (6.2 G5) | 50H-0063 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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    $149.99
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  • Ilmor 190 Degree Thermostat-4mm Hole | PE02006

    Ilmor 190 Degree Thermostat-4mm Hole | PE02006

    Ilmor
    $59.99
    Ilmor 190 Degree Thermostat-4mm Hole | PE02006 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 this thermostat specifically designed to fit your Ilmor...
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Whether you're fixing a small issue or tackling a full-season tune-up, WaterSkis.com is your go-to source for inboard boat parts that match your boat and your lifestyle. We carry trusted parts for MasterCraft, Supra, Moomba, and other leading ski and wakeboard boats—all backed by our expert support. Need help finding the exact part? Use our Boat Part Lookup Tool for a fast, accurate match. And don’t forget to check out related categories like Boat Cleaning Products and Ballast System Parts to complete your setup.