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We will be closing at 12 PM EST on Friday, April 18th, in observance of Good Friday and Easter.
Any orders placed after this time will be processed on Monday, April 21st.
Have a happy Easter weekend!

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Due to severe weather, our White House, Tennesee location will be closed Wednesday the 19th.

All shipments from this location will resume on Thursday the 20th. Thank you for your patience!

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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 25-36 of 52

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    Pulley Crankshaft, 1 Groove | Crusader R065045
    CRU-R065045
    Qty In Stock: 0
    Brand: Crusader
    Pulley Crankshaft, 1 Groove Learn More
    MSRP: $37.05 $30.74
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  2. Exhaust Riser Gasket | Crusader RM0292
    Exhaust Riser Gasket | Crusader RM0292
    CRU-RM0292
    Qty In Stock: 0
    Brand: Crusader

    Exhaust riser gasket

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    MSRP: $86.76 $74.29
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  3. Image
    GM Big Block Stamped Steel Oil Pan | Crusader 31145
    CRU-31145
    Qty In Stock: 0
    Brand: Crusader
    OE stamped steel oil pan used on Crusader 454 CID and 502 CID marine engines with a 1 piece rear main seal. Learn More
    MSRP: $298.09 $288.47
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  4. Crusader 97903 Oil Cooler to Heat Exchanger Formed Hose
    Oil Cooler to Heat Exchanger Formed Hose | Crusader 97903
    CRU-97903
    Qty In Stock: 0
    Brand: Crusader
    Oil Cooler to Heat Exchanger Formed Hose Learn More
    MSRP: $50.34 $48.75
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  5. Circulating Water Pump for 6.0 liter Engines | Crusader RA057036
    Circulating Water Pump for 6.0 liter Engines | Crusader RA057036
    CRU-RA057036
    Qty In Stock: 0
    Brand: Crusader

    Circulating Water Pump for 6.0 liter Engines 

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    MSRP: $493.14 $466.75
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  6. Crusader R065050 Pulley Raw Water Pump
    Pulley Raw Water Pump | Crusader R065050
    CRU-R065050
    Qty In Stock: 0
    Brand: Crusader
    Crusader R065050 Pulley Raw Water Pump Learn More
    MSRP: $71.38 $62.69
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  7. 5.7 & 8.0 liter Alternator, 100 amp | Crusader RA097010
    5.7 & 8.0 liter Alternator, 100 amp | Crusader RA097010
    CRU-RA097010
    Qty In Stock: 0
    Brand: Crusader
    ALTERNATOR 100AMP (8.1L / 5.7) Learn More
    MSRP: $886.77 $778.55
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  8. Valve Cover Gasket | Crusader RM0282
    Valve Cover Gasket | Crusader RM0282
    CRU-RM0282
    Qty In Stock: 0
    Brand: Crusader

    Valve cover gasket fits Crusader 6.0 liter engines

    Learn More
    MSRP: $55.28 $48.54
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  9. 6.0 Crankshaft Sensor | Crusader R020044
    6.0 Crankshaft Sensor | Crusader R020044
    CRU-R020044
    Qty In Stock: 0
    Brand: Crusader

    6.0 Crankshaft Sensor

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    MSRP: $141.78 $124.49
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  10. Spark Plug Wire Set | Crusader RA121008/9
    Spark Plug Wire Set | Crusader RA121008/9
    CRU-RA121008/9
    Qty In Stock: 0
    Brand: Crusader

    Spark plug wire set. Fits Ford 302 & 351 V8 small block engines.  7mm diameter.

    Learn More
    MSRP: $45.86 $45.83
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  11. Exhaust Riser Gasket | Crusader RM0099
    Exhaust Riser Gasket | Crusader RM0099
    CRU-RM0099
    Qty In Stock: 0
    Brand: Crusader
    Learn More
    MSRP: $51.68 $51.61
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  12. Large Image
    Knock Sensor | Crusader R020029
    CRU-R020029
    Qty In Stock: 0
    Brand: Crusader
    Engine sensor sends a signal to the ECM when abnormal ignition occurs. Learn More
    MSRP: $42.90 $35.60
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Items 25-36 of 52

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