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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 61-72 of 2639

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  1. Pierburg Electric Fuel Pump | Indmar 556184
    Pierburg Electric Fuel Pump | Indmar 556184
    IND-556184
    Qty In Stock: 36
    Brand: Indmar
    OEM fuel pump used on many Indmar EFI marine engines found in Malibu & Supra boats from 2003-2009. Learn More
    MSRP: $329.80 $262.83
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  2. Large Image
    10 Micron Long Fuel Water Separator Filter | Sierra 18-7945
    SIERRA-18-7945
    Qty In Stock: 156
    Brand: Sierra
    Replacement spin-on fuel filter fits many Mercury & Mercruiser marine engines to remove contaminants & water from incoming fuel. Learn More
    MSRP: $8.99 $6.10
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  3. Large Image
    Throttle Position Sensor Kit 8.1L | Volvo Penta 21157475
    VOLVO-21157475
    Qty In Stock: 20
    Brand: Volvo Penta

    Original equipment throttle control update kit includes a new throttle position sensor and mounting hardware to fit a variety of 8.1L Volvo Penta engine models.

    Learn More
    MSRP: $428.00 $373.06
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  4. Large Image
    Captain's Call Diverter Repair Kit - 4 in. | Corsa Performance 10826
    COR-10826
    Qty In Stock: 12
    Brand: Corsa Performance
    Everything needed to repair 1 pair of Corsa 4 in. exhaust diverter flappers. Learn More
    MSRP: $269.00 $232.99
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  5. Barr Marine MC-1-58759 Mercruiser 6 Cylinder Exhaust Manifold
    Mercruiser Inline 6 Cylinder Exhaust/Intake Manifold | Barr MC-1-58759
    BARR-MC-1-58759
    Qty In Stock: 4
    Brand: Barr Marine
    Cast iron combination intake & exhaust manifold fits Mercruiser 165 inline 6 cylinder marine engines. Learn More
    MSRP: $877.00 $559.64
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  6. Small
    GM Marine Distributor | Sierra 18-5313-1
    SIERRA-18-5313-1
    Qty In Stock: 1
    Brand: Sierra

    Sierra Mallory breaker point style distributor for GM small and big block marine engines

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    MSRP: $588.99 $376.69
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  7. Small Crusader R026007 Thermostat
    170 degree Thermostat | Crusader R026007
    CRU-R026007
    Qty In Stock: 88
    Brand: Crusader

    170 degree thermostat fits various closed cooled Crusader V8 marine engines.

    Learn More
    MSRP: $60.49 $50.21
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  8. Barr Marine CR-1-98125 Exhaust Manifold 7.4L & 8.2L
    Crusader Center Rise Big Block Exhaust Manifold 7.4 & 8.2 liter | Barr CR-1-98125
    BARR-CR-1-98125
    Qty In Stock: 19
    Brand: Barr Marine
    Direct replacement aftermarket center rise exhaust manifold for Crusader 454 & 502 cubic inch displacement marine engines. Comes with one manifold to head and the manifold to riser gasket. Also includes the manifold to head mounting bolts. Learn More
    MSRP: $660.00 $475.16
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  9. Small Image
    Impeller Kit with Gasket & O-Ring | Crusader RP061017
    CRU-RP061017
    Qty In Stock: 64
    Brand: Crusader
    Original Crusader raw water pump impeller kit. Learn More
    MSRP: $64.20 $54.13
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  10. Sierra 18-1976-2 Mercruiser 4 in. Center Rise Exhaust Elbow
    Mercruiser Center Rise Exhaust Elbow | Sierra 18-1976-2
    SIERRA-18-1976-2
    Qty In Stock: 68
    Brand: Sierra

    Sierra direct replacement exhaust elbow fits many Mercruiser V6 & V8 marine engines with center rise exhaust manifolds. 4-inch outside diameter exhaust hose connection

    Learn More
    MSRP: $208.69 $129.72
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  11. Large
    1 Gallon 25W40 4-Stroke Marine Oil | Quicksilver 92-8M0078620
    QS-92-8M0078620
    Qty In Stock: 267
    Brand: Quicksilver

    1 Gallon 25W40 4-Stroke Marine Oil

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    MSRP: $46.19 $41.99
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  12. Small Image
    Fuel Filter Element & Canister | Sierra 18-7861
    SIERRA-18-7861
    Qty In Stock: 57
    Brand: Sierra
    Aftermarket replacement fuel filter & canister used on many early model Crusader & OMC marine engines. Learn More
    MSRP: $37.49 $24.98
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Items 61-72 of 2639

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