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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 73-84 of 177

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    Chris Craft Port Exhaust Riser | Barr CC-20-08288
    BARR-CC-20-08288
    Qty In Stock: 5
    Brand: Barr Marine
    Direct replacement port side riser for Chris Craft 283, 302, 305, 307, 327 & 350 cu. in. marine engines with log style manifolds. Learn More
    MSRP: $604.00 $406.25
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  2. Small Image
    Manifold End Cap Gasket | Barr 1-0019
    BARR-1-0019
    Qty In Stock: 6
    Brand: Barr Marine
    Gasket seals between the manifold & exhaust elbow of Barr OF-1-60L, OF-1-60R, GR-1-6470R & INT-1-58R exhaust manifolds. Learn More
    MSRP: $7.50 $5.09
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  3. Image
    Manifold End Plate Gasket | Barr 1-0022
    BARR-1-0022
    Qty In Stock: 0
    Brand: Barr Marine
    Gasket seals between the manifold & end plate on Barr generic log style exhaust manifolds. Learn More
    MSRP: $7.50 $5.99
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  4. Large Image
    Exhaust Swivel Gasket | Barr 20-0001
    BARR-20-0001
    Qty In Stock: 0
    Brand: Barr Marine
    Gasket seals between the manifold & swivel style elbow on many Barr generic log style exhaust manifolds. Learn More
    MSRP: $10.00 $7.80
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  5. Large Image
    Chrysler End Plate Mounting Kit | Barr CM-20-6674P
    BARR-CM-20-6674P
    Qty In Stock: 0
    Brand: Barr Marine
    Gasket & mounting hardware for Chrysler exhaust manifold end plate. Learn More
    MSRP: $17.50 $13.00
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  6. Mercruiser Lower Thermostat Housing | Barr Marine MC-29-78984
    Mercruiser Lower Thermostat Housing | Barr Marine MC-29-78984
    BARR-MC-29-78984
    Qty In Stock: 0
    Brand: Barr Marine

    Mercruiser style lower thermostat housing used on log style 225, 250, 255, 270, and 280 CID engines.

    Learn More
    MSRP: $236.00 $167.19
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  7. Small Image
    Mercruiser Thermostat Housing Gasket | Barr MC47-27-41812
    BARR-MC47-27-41812
    Qty In Stock: 21
    Brand: Barr Marine
    Thermostat Housing Gasket Learn More
    MSRP: $7.00 $5.15
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  8. Small Image
    Thermostat Housing Cover Gasket | Barr MC47-27-60208
    BARR-MC47-27-60208
    Qty In Stock: 5
    Brand: Barr Marine
    Thermostat housing cover gasket used on Mercruiser V8 Ford small block marine engines. Learn More
    MSRP: $7.00 $5.59
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  9. Large
    Mercruiser Manifold End Cap Gasket | Barr MC47-27-73814
    BARR-MC47-27-73814
    Qty In Stock: 5
    Brand: Barr Marine
    Gasket seals between the manifold & end plate on various Mercruiser 4 & 6 cylinder log style exhaust manifolds. Learn More
    MSRP: $7.00 $5.15
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  10. Barr Marine MC47-27-864850 MerCruiser Exhaust Riser to Dry Joint Manifold Gasket with Restricted Flow
    MerCruiser Exhaust Riser to Dry Joint Manifold Gasket with Restricted Flow | Barr Marine MC47-27-864850
    BARR-MC47-27-864850
    Qty In Stock: 0
    Brand: Barr Marine

    MerCruiser Exhaust Riser to Dry Joint Manifold Gasket with Restricted Flow

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    MSRP: $76.00 $53.65
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  11. Large Image
    OMC Manifold End Plate Gasket | Barr OMC47-311130
    BARR-OMC47-311130
    Qty In Stock: 3
    Brand: Barr Marine
    End gasket for OMC 225 HP & 245 HP marine engines with log style exhaust manifolds. Learn More
    MSRP: $7.00 $5.15
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  12. Thermostat Housing Gasket | Barr OR-29-72C
    Thermostat Housing Gasket | Barr OR-29-72C
    BARR-OR-29-74C
    Qty In Stock: 0
    Brand: Barr Marine

    Barr Marine  thermostat housing gasket.

    Learn More
    MSRP: $11.00 $9.19
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Items 73-84 of 177

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