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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

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  1. crur028024_lg
    Crusader 6.0L Exhaust Manifold | Crusader Marine R028024
    CRU-R028024
    Qty In Stock: 25
    Brand: Crusader

    OEM Crusader center rise manifold painted blue fits Crusader GM 6.0L marine engines from 2004 and newer.

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    MSRP: $368.40 $312.37
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  2. Crusader R029016A Crusader 6.0L Exhaust Elbow
    Exhaust Elbow 6.0L | Crusader R029016A
    CRU-R029016A
    Qty In Stock: 35
    Brand: Crusader

    Exhaust elbow used on Crusader 6.0L engines with full fresh water cooling.

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    MSRP: $365.55 $289.53
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  3. Small Image
    8.1L Platinum Spark Plug Set | Crusader RP030009
    CRU-RP030009
    Qty In Stock: 12
    Brand: Crusader
    Crusader RP030009 AC Delco Platinum Spark Plugs Learn More
    MSRP: $141.14 $118.30
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  4. Crusader exhaust elbow gasket - RM0274A
    6.0L Exhaust Elbow Gasket | Crusader RM0274A
    CRU-RM0274A
    Qty In Stock: 56
    Brand: Crusader

    Seals the are between exhaust manifold and exhaust riser on Crusader 6.0L marine engines.

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    MSRP: $64.52 $56.63
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  5. Small Image
    Remote Oil Filter Kit | Crusader 22026
    CRU-22026
    Qty In Stock: 6
    Brand: Crusader
    OEM remote mount oil filter kit for Crusader early 1990's - 350 & 305 cubic inch engines Learn More
    MSRP: $271.69 $262.94
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  6. GM V8 EST Distributor | Crusader RA107039D
    GM V8 EST Distributor | Crusader RA107039D
    CRU-RA107039D
    Qty In Stock: 16
    Brand: Crusader

    Electronic distributor for Crusader GM V8 marine engines with Delco EST ignition.

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    MSRP: $531.27 $509.69
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  7. Large Image
    Ignition Relay | Crusader 98175
    CRU-98175
    Qty In Stock: 14
    Brand: Crusader
    Ignition relay for Crusader throttle body injected marine engines. Learn More
    MSRP: $61.14 $48.42
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  8. Small Image
    3 inch Exhaust Elbow Outlet | Crusader 98068
    CRU-98068
    Qty In Stock: 28
    Brand: Crusader
    Replacement OEM Crusader exhaust elbow fits many Crusader V8 marine engines. Learn More
    MSRP: $165.83 $160.50
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  9. Crusader impeller kit with o-rings - RP061022
    Impeller Kit With O-Ring | Crusader RP061022
    CRU-RP061022
    Qty In Stock: 165
    Brand: Crusader

    Original equipment Crusader kit includes impeller and sealing o-rings for Crusader RA057032 serpentine driven raw water pumps.

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    MSRP: $58.95 $51.56
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  10. Small
    Starboard Side Exhaust Manifold | Crusader 97992
    CRU-97992
    Qty In Stock: 15
    Brand: Crusader
    OEM Crusader starboard exhaust manifold fits Crusader GM 7.4L & 8.2L big block marine engines. Learn More
    MSRP: $299.97 $290.26
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  11. Flame Arrestor 7.4L MPI 8.1 Crusader Marine R145021 Front
    Flame Arrestor 7.4L and 8.1L MPI | Crusader Marine R145021
    CRU-R145021
    Qty In Stock: 2
    Brand: Crusader

    Flame arrestor from Crusader for MPI model engines including the 7.4L and 8.1L engines with 3 3/4 inch mechanical throttle body.

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    MSRP: $115.88 $101.76
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  12. Small Image
    FCC Fuel Filter Kit | Crusader RP080026
    CRU-RP080026
    Qty In Stock: 154
    Brand: Crusader

    Fuel filter kit for all Crusader fuel injected marine engines with fuel control cell fuel systems.

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    MSRP: $60.28 $47.76
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