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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 58

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  1. Plug Winged 1/2in O-Ring | Indmar 60-5176
    Plug Winged 1/2in O-Ring | Indmar 60-5176
    IND-605176
    Qty In Stock: 19
    Plug Winged 1/2in O-Ring Learn More
    MSRP: $4.00 $4.00
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  2. MEFI 6B Wiring Harness, 6.0 liter | Indmar 801341
    MEFI 6B Wiring Harness, 6.0 liter | Indmar 801341
    IND-801341
    Qty In Stock: 0
    Brand: Indmar

    MEFI 6B Wiring Harness, 6.0 liter 

    Learn More
    MSRP: $1,856.00 $1,709.86
    Add to Wishlist
  3. Serpentine Drive Belt Indmar 725010
    Serpentine Drive Belt | Indmar 725010
    IND-725010
    Qty In Stock: 0
    Brand: Indmar

    Indmar OEM alternator belt used on LT1 engine models 1995 and up.

    Learn More
    MSRP: $73.56 $69.16
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  4. Indmar 872025-1 OEM Marine Engine Spin-On Oil Filter - 6.2L Ford
    OEM Marine Engine Spin-On Oil Filter (Case of 12) - 6.2L Ford | Indmar 872025
    IND-872025
    Qty In Stock: 0
    Brand: Indmar

    Recommended for all 6.2L Ford-based engines with spin-on oil filters. Indmar filters capture 45 percent more dirt and last 30 percent longer than a leading national automotive brand.

     
    Learn More
    MSRP: $189.60 $168.96
    Add to Wishlist
  5. Indmar 725026 Serpentine Alternator Belt
    Serpentine Drive Belt | Indmar 725026
    IND-725026
    Qty In Stock: 3
    Brand: Indmar

    Indmar OEM alternator belt used on Mastercraft EFI LTR marine engine applications.

    Learn More
    MSRP: $70.00 $54.79
    Add to Wishlist
  6. Indmar 845040 GM Small Block V8 305/350 Formed Hose
    GM Small Block V8 305/350 Formed Hose | Indmar 845040
    IND-845040
    Qty In Stock: 4
    Brand: Indmar
    GM Small Block V8 305/350 Formed Hose Learn More
    MSRP: $71.28 $67.02
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  7. Indmar 597037-16 6.2 liter Spark Plug Kit
    Spark Plug Set, Ford 6.2L | Indmar 597037-16
    IND-597037-16
    Qty In Stock: 0

    OEM set of 16 spark plugs for Indmar Ford 6.2L Raptor 400 and 450 models.

    Learn More
    MSRP: $518.50 $413.22
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  8. Small Indmar 885178 Switch
    Transmission Oil Temperature Switch | Indmar 885178
    IND-885178
    Qty In Stock: 19
    Brand: Indmar
    Switch activates an audible or visual warning alarm to alert boat operator of transmission temperature in excess of 195 degrees. Learn More
    MSRP: $79.76 $63.57
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  9. Electronic Control Module | Indmar 556394
    Electronic Control Module | Indmar 556394
    IND-556394
    Qty In Stock: 0
    Brand: Indmar
    ECM Learn More
    MSRP: $997.28 $950.24
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  10. Indmar 872025-1 OEM Marine Engine Spin-On Oil Filter - 6.2L Ford
    OEM Marine Engine Spin-On Oil Filter, 6.2 liter Ford | Indmar 872025-1
    IND-872025-1
    Qty In Stock: 45
    Brand: Indmar

    Recommended for all 6.2 liter Ford-based engines with spin-on oil filters. Indmar filters capture 45% more dirt and last 30% longer than a leading national automotive brand.

    Learn More
    MSRP: $14.08 $14.00
    Add to Wishlist
  11. Knock Sensor | Indmar 551392
    Knock Sensor | Indmar 551392
    IND-551392
    Qty In Stock: 0
    Brand: Indmar

    Knock sensor

    Learn More
    MSRP: $50.60 $40.31
    Add to Wishlist
  12. SM INDMAR 536007
    Transmission Mount Bushing | Indmar 536007
    IND-536007
    Qty In Stock: 17
    Brand: Indmar
    Replacement bushing for Indmar transmission mounts. Learn More
    MSRP: $12.00 $11.22
    Add to Wishlist

Items 37-48 of 58

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