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Marine Spark Plug Wires

Shop at Marine Parts Source when you need spark plug wire kits for an inboard or inboard/outboard engine. Most boat enthusiasts know they need to periodically replace the spark plugs, but the wires are just as important for good ignition system performance. Worn-out or broken wires can cause problems like difficulty starting the engine, rough idling and excess fuel usage. Get these replacement spark plug wires for scheduled maintenance or at the first sign of trouble to keep up your engine’s performance.

We have OEM and aftermarket wire sets for all leading boat engine manufacturers, including Crusader, MerCruiser, Volvo Penta, Chris Craft and Indmar. Select a wiring product to see a list of which engines and ignition systems it is compatible with. Even if you only need to replace one or two wires, ordering a full set will have you prepared in case of future issues. Many other ignition parts are available with fast shipping from warehouses across the U.S.

Spark Plug Wire Sets

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  1. 8.1 liter Spark Plug Wire Set | Sierra 18-8838-1
    8.1 liter Spark Plug Wire Set | Sierra 18-8838-1
    SIERRA-18-8838-1
    Qty In Stock: 0
    Brand: Sierra

    8.1 liter Spark Plug Wire Set

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    MSRP: $573.09 $465.16
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  2. Image
    Thunderbolt V8 Big Block Plug Wire Set | United Marine 113
    UIW-113
    Qty In Stock: 0
    Brand: United Motor Products
    Thunderbolt V8 Big Block Plug Wire Set Learn More
    MSRP: $87.36 $71.92
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  3. 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.

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    MSRP: $45.86 $45.83
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    Chris Craft 454 Spark Plug Wire Set | United Marine 124
    UIW-124
    Qty In Stock: 0
    Brand: United Motor Products
    Chris Craft 454 Spark Plug Wire Set Learn More
    MSRP: $87.66 $72.31
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  5. 5.7L Spark Plug Wire Set | Crusader RK120023
    5.7L Spark Plug Wire Set | Crusader RK120023
    CRU-RK120023
    Qty In Stock: 0
    Brand: Crusader

    5.7L Spark Plug Wire Set

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    MSRP: $81.11 $77.07
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    Mallory Side Terminal Spark Plug Wire Set | United Marine 132
    UIW-132
    Qty In Stock: 0
    Brand: United Motor Products
    Mallory Side Terminal Spark Plug Wire Set Learn More
    MSRP: $89.40 $71.49
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  7. Image
    Mallory Side Terminal Spark Plug Wire Set | United Marine 115
    UIW-115
    Qty In Stock: 0
    Brand: United Motor Products
    Mallory Side Terminal Spark Plug Wire Set Learn More
    MSRP: $85.59 $67.08
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