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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 13-24 of 58

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    Serpentine Drive Belt | Indmar 725034
    IND-725034
    Qty In Stock: 6
    Brand: Indmar

    Indmar OEM serpentine belt used on a variety of 5.7L marine engine modelsfrom 2003 & up.

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    MSRP: $50.56 $40.29
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  2. EXTCAT Exhaust Manifold Gasket | Indmar 556202SPEC
    EXTCAT Exhaust Manifold Gasket | Indmar 556202SPEC
    IND-556202SPEC
    Qty In Stock: 15
    Brand: Indmar

    Special exhaust manifold mounting gaskets for Indmar engines with EXTCAT manifolds.

    Learn More
    MSRP: $35.36 $35.02
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  3. Bronze Raw Water Pump LT-1/LTR | Indmar 685020-4
    Bronze Raw Water Pump LT-1/LTR | Indmar 685020-4
    IND-685020-4
    Qty In Stock: 15
    Brand: Indmar

    OEM crankshaft mounted engine cooling pump used on 5.7L Indmar LTR & LT1 model marine engines.

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    MSRP: $360.00 $289.60
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  4. Indmar 556003 EFI fuel filter
    EFI Fuel Filter | Indmar 556003
    IND-556003
    Qty In Stock: 7
    Brand: Indmar
    EFI Fuel Filter Learn More
    MSRP: $41.00 $32.69
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  5. Indmar Marine Top Mount Starter | Indmar 573004
    Indmar Marine Top Mount Starter | Indmar 573004
    IND-573004
    Qty In Stock: 1

    OEM Indmar starter fits all Indmar Ford 6.2L Raptor engines and all Indmar GM engines that use a rear entry top mount starter.

    Learn More
    MSRP: $282.36 $245.47
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  6. Indmar 596100 O2 Sensor
    Exhaust Oxygen Sensor | Indmar 596100
    IND-596100
    Qty In Stock: 3
    Brand: Indmar

    Oxygen sensor that monitors engine exhaust gases and sends a signal to the engine control module for optimal fuel delivery

    Learn More
    MSRP: $67.52 $64.15
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  7. Indmar 685001-4 Hi-Flow Raw Water Pump with Retaining Ring
    Hi-Flow Raw Water Pump with Retaining Ring | Indmar 685001-4
    IND-685001-4
    Qty In Stock: 2
    Brand: Indmar
    Hi-Flow Raw Water Pump with Retaining Ring Learn More
    MSRP: $336.00 $296.56
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  8. 3 1/2 Inch Exhaust Riser Elbow Indmar 532027
    3 1/2 Inch Exhaust Riser Elbow | Indmar 532027
    IND-532027
    Qty In Stock: 17
    Brand: Indmar

    OEM cast iron exhaust elbow for 3 1/2 inch exhaust hose used on Indmar GM & Ford small block marine engine raw water cooling applications.

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    MSRP: $370.52 $295.28
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    GM V8 Small Block Exhaust Manifold | Indmar 531051
    IND-531051
    Qty In Stock: 18
    Brand: Indmar
    GM V8 Small Block Exhaust Manifold Learn More
    MSRP: $687.48 $531.83
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  10. GM Small Block Cast Aluminum Bell Housing Indmar 531410P Back
    Bell Housing | Indmar 531410P
    IND-531410P
    Qty In Stock: 13
    Brand: Indmar

    Bell housing for GM V8 engines that can accept a top mount or bottom mount starter

     

    Learn More
    MSRP: $554.64 $442.02
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  11. Small Image
    Intake Plenum Gasket | Indmar 765003
    IND-765003
    Qty In Stock: 17
    Brand: Indmar
    OEM intake to plenum gasket used on many Indmar marine engines with raised intake plenum. Learn More
    MSRP: $16.40 $13.08
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  12. Indmar 535032 Engine Mount 3/4 In Stud
    Engine Mount 3/4" Stud | Indmar 535032
    IND-535032
    Qty In Stock: 25
    Engine Mount 3/4" Stud Learn More
    MSRP: $34.00 $31.93
    Add to Wishlist

Items 13-24 of 58

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