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Inboard & I/O Engine Parts

Inboard Marine Engine Parts and Accessories

As the largest online dealer of inboard boat parts, Marine Parts Source will help you find the right engine parts you need for any project. We’re here to assist with seasonal maintenance, major repairs and more so you can get back on the water. Use our convenient categories to browse our collection — or if you know the part number you need, enter it into the search bar. From oil and fuel filters to spark plugs, exhaust manifolds, bell housings, starters and alternator belts, we supply boat owners from coast to coast.

You can always count on quality and knowledge when you shop with us. We’re an authorized dealer of the leading OEM and aftermarket performance inboard marine brands, including J&N Electric, Sierra, Arco Marine, Volvo Penta and Crusader. If you have a question, our sales associates have the technical expertise to answer it. Enjoy free ground shipping on qualifying orders so your vessel is ready for adventure.

Inboard & I/O Engine Parts

Items 37-48 of 418

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  1. Crusader thermostat housing kit - 22366
    Raw Water Cooled Thermostat Housing Kit | Crusader 22366
    CRU-22366
    Qty In Stock: 2
    Brand: Crusader
    OEM thermostat housing kit for many Crusader raw water cooled engines includes thermostat housing assembly & components. Learn More
    MSRP: $269.12 $260.44
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  2. Small Image
    FWC 454 Engine Hose Kit | Crusader 22606
    CRU-22606
    Qty In Stock: 0
    Brand: Crusader
    FWC 454 Engine Hose Kit Learn More
    MSRP: $352.80 $341.42
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  3. Large Image
    Mando Inboard Marine Alternator | Crusader 39200
    CRU-39200
    Qty In Stock: 9
    Brand: Crusader
    OE Crusader 55 amp marine alternator with 1 in. mounting foot and single v-groove pulley fits many Crusader marine engines. Learn More
    MSRP: $312.25 $302.16
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  4. Small Image
    Braided Fuel Line Retro-Fit Kit | Crusader RF201012
    CRU-RF201012
    Qty In Stock: 18
    Brand: Crusader

    Braided Fuel Line Retro-Fit Kit

    Learn More
    MSRP: $125.22 $107.48
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  5. CRU-98619 HEAT EXCHANGE ASM
    5.7 liter Heat Exchanger | Crusader 98619
    CRU-98619
    Qty In Stock: 1
    Brand: Crusader
    HEAT EXCHANGE ASM, RR MP 5.7L Learn More
    MSRP: $1,909.32 $1,649.66
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  6. Crusader R034006A Filler Cap
    Filler Cap | Crusader R034006A
    CRU-R034006A
    Qty In Stock: 48
    Brand: Crusader
    Filler Cap Learn More
    MSRP: $17.94 $15.73
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  7. Crusader 8.1L spark plug wire set
    8.1 liter Spark Plug Wire Set | Crusader RK120019
    CRU-RK120019
    Qty In Stock: 67
    Brand: Crusader

    Original Crusader 7 mm ignition wire set fits Crusader 8.1 liter marine engines.

    Learn More
    MSRP: $82.54 $68.47
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  8. Crusader HEI Ignition Coil
    HEI Ignition Coil | Crusader R117005
    CRU-R117005
    Qty In Stock: 20
    Brand: Crusader
    OE ignition coil fits GM HEI EST type ignition systems. Learn More
    MSRP: $112.52 $95.37
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  9. cru97993_lg
    Port Side Exhaust Manifold | Crusader 97993
    CRU-97993
    Qty In Stock: 14
    Brand: Crusader
    OEM Crusader port exhaust manifold fits Crusader GM 7.4L & 8.2L big block marine engines. Learn More
    MSRP: $299.97 $290.26
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  10. cru97753_lg
    Port Side Log Style Exhaust Manifold | Crusader 97753
    CRU-97753
    Qty In Stock: 11
    Brand: Crusader

    OEM Crusader port exhaust manifold fits Crusader GM 5.0 liter & 5.7 liter small block marine engines.

    Learn More
    MSRP: $383.55 $371.16
    Add to Wishlist
  11. Crusader 96101 Thermostat Housing Cover
    Thermostat Housing Cover | Crusader 96101
    CRU-96101
    Qty In Stock: 3
    Brand: Crusader
    Thermostat Housing Cover Learn More
    MSRP: $44.63 $43.20
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  12. Small Image
    1 Hole Exhaust Elbow Gasket | Crusader 96562
    CRU-96562
    Qty In Stock: 121
    Brand: Crusader
    Gasket seals between exhaust elbow & manifold/riser on Crusader raw water cooled engines for proper cooling water flow. Learn More
    MSRP: $5.00 $4.72
    Add to Wishlist

Items 37-48 of 418

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