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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 3254

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  1. Sierra 18-8860 Mercruiser GM Big Block Fuel Pump
    Mercruiser Mechanical Fuel Pump | Sierra 18-8860
    SIERRA-18-8860
    Qty In Stock: 31

    Sierra aftermarket mechanical fuel pump for Mercruiser 7.4L & 8.2L marine engine applications. Includes the engine mounting gasket.

    Learn More
    MSRP: $219.89 $159.69
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  2. Sierra 18-8115 Flexible Fuel Line USCG Approved - 25 in.
    Flexible Fuel Line USCG Approved - 25 in. | Sierra 18-8115
    SIERRA-18-8115
    Qty In Stock: 38
    Brand: Sierra
    Flexible fuel line is designed for fuel pump to carburetor connections of marine engine. Learn More
    MSRP: $82.09 $52.42
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  3. Crusader R029016A Crusader 6.0L Exhaust Elbow
    Exhaust Elbow 6.0L | Crusader R029016A
    CRU-R029016A
    Qty In Stock: 21
    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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  4. Small Image
    Gasoline Engine Oil Filter | Pleasurecraft Marine R077001
    PCM-R077001
    Qty In Stock: 207
    Brand: Pleasurecraft Marine
    OEM Pleasurecraft Marine engine oil filter also directly replaces discontinued Crusader 22679 filter. Learn More
    MSRP: $11.75 $8.51
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  5. Corsa Performance 11050 Stainless Steel Exhaust Tips with External Flappers - 4 in.
    Stainless Steel Exhaust Tips with External Flappers - 4 in. | Corsa Performance 11050
    COR-11050
    Qty In Stock: 12
    Brand: Corsa Performance
    Pair of polished stainless steel exhaust tips fit inboard boats with 4 in. exhaust. Learn More
    MSRP: $359.00 $325.91
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  6. 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: 77
    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

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    MSRP: $208.69 $129.72
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  7. Small Image
    Spark Plug Kit Iridium, Pack of 4 | Volvo Penta 21467472
    VOLVO-21467472
    Qty In Stock: 71
    Brand: Volvo Penta

    Spark Plug Iridium 4 Pack

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    MSRP: $72.80 $62.13
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  8. Small Image
    Engine Oil Filter | Volvo Penta 8692305
    VOLVO-8692305
    Qty In Stock: 535
    Brand: Volvo Penta
    Late model Volvo Penta cartridge style oil filter insert. Learn More
    MSRP: $17.40 $17.05
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  9. Indmar 756002 Spark Plug Wire Set
    Delco EST Spark Plug Wire Set | Indmar 756002
    IND-756002
    Qty In Stock: 26
    Brand: Indmar
    OEM Indmar spark plug wire set for V8 GM 350 & 383 cu. in. small block marine engines with Delco EST ignition system. Learn More
    MSRP: $110.36 $87.96
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  10. Small Image
    Cummins Raw Water Pump | Sherwood P1730C
    SHER-P1730C
    Qty In Stock: 19
    Brand: Sherwood Pumps
    Replacement bronze sea water pump for cooling various Cummins 6C diesel marine engines. Learn More
    MSRP: $1,244.02 $698.87
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  11. Delco EST Conversion Kit 4.3L GM V6 | Sierra 18-5513
    Delco EST Conversion Kit 4.3L GM V6 | Sierra 18-5513
    SIERRA-18-5513
    Qty In Stock: 26
    Brand: Sierra

    Delco EST style ignition conversion kit for upgrade or replacement on 4.3L GM V6 engines.

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    MSRP: $795.19 $500.93
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  12. Small Image
    Gasoline Engine Oil Filter | Volvo Penta 3850559
    VOLVO-3850559
    Qty In Stock: 241
    Brand: Volvo Penta
    Original Volvo Penta GM long style engine oil filter. Learn More
    MSRP: $15.60 $14.07
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Items 37-48 of 3254

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