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Boating > Engine Parts > Spark Plugs & Wires >

Boating>Engine Parts>Spark Plugs & Wires>

Boat engine parts. Alternators, manifolds, water pumps and more for your boat engine repair. Gander Mountain has the largest selection of boat engine parts available online. Our boat engine parts inventory also includes boat starters, outboard accessories and boat engine tune up kits. So, if it's a water pump, new starter or spark plugs for your boat engine, check out our selection first!

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NGK Laser Iridium Spark Plugs

New! NGK Laser Iridium Spark Plugs

Key Features
  • Iridium at fine-wire center electrode

  • Platinum at ground electrode

  • Spark plug with maximum performance

  • Protected against gap erosion

6 models to choose from
$13.99 - $17.99
NGK V-Power Spark Plugs

New! NGK V-Power Spark Plugs

Key Features
  • Economical performance over nickel spark plugs

  • Lower ignition system voltage requirements

  • Increased fuel economy

  • Resistant to electrical and chemical wear

5 models to choose from
$3.99 - $9.99
Sierra Wiring Plug Set For OMC Engine, Sierra Part #18-8816-1

New! Sierra Wiring Plug Set For OMC Engine, Sierra Part #18-8816-...

Key Features
  • Sierra Part #18-8816-1

  • Wiring plug set

  • For OMC engine

$11.69
Sierra Wiring Plug Set For Johnson/Evinrude Engine, Sierra Part #18-8840-1

New! Sierra Wiring Plug Set For Johnson/Evinrude Engine, Sierra ...

Key Features
  • Sierra Part #18-8840-1

  • Wiring plug set

  • For Johnson/Evinrude engine

$49.99
Aqua Power Complete Performance Marine Tune-Up Kit

Aqua Power Complete Performance Marine Tune-Up Kit

Key Features
  • Includes cap, rotor, points, and condenser

  • For MerCruiser V-8 engines with:

  • Thunderbolt IV ignition systems

$31.99
Aqua Power Complete Performance Marine Tune-Up Kit

Aqua Power Complete Performance Marine Tune-Up Kit

Key Features
  • Includes cap, rotor, points, and condenser

  • For Mercruiser V-6 engines with:

  • Thunderbolt IV ignition systems

$28.99
Electronic Conversion Kit GM 4-Cyl. Engines -Delco

Electronic Conversion Kit GM 4-Cyl. Engines -Delco

Key Features
  • Easily installed

  • Not affected by oil, heat, dirt, or moisture

  • Not for use in OMC engines w/shift assist module

  • Distributor cap and rotor not included

$129.99
Aqua Power Complete Performance Marine Tune-Up Kit

Aqua Power Complete Performance Marine Tune-Up Kit

Key Features
  • For 4-cylinder GM engines with:

  • Delco breaker point ignition system

$29.99
Sierra Tuneup Kit For OMC Engine, Sierra Part #18-5006

Sierra Tuneup Kit For OMC Engine, Sierra Part #18-5006

Key Features
  • Sierra Part #18-5006

  • Tuneup kit

  • For OMC engine

$19.99
Sierra Wiring Harness For Mercury Marine Engine, Sierra Part #18-5511

Sierra Wiring Harness For Mercury Marine Engine, Sierra Part #18-...

Key Features
  • Sierra Part #18-5511

  • Wiring harness

  • For Mercury Marine engine

$279.99
Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18-8835-1

Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18...

Key Features
  • Sierra Part #18-8835-1

  • Wiring/plug set

  • For Mercury Marine engine

$59.99
Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18-8833-1

Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18...

Key Features
  • Sierra Part #18-8833-1

  • Wiring/plug set

  • For Mercury Marine engine

$34.99
Sierra Universal Spark Plug Boot, Sierra Part #18-5750-9

Sierra Universal Spark Plug Boot, Sierra Part #18-5750-9

Key Features
  • Sierra Part #18-5750-9

  • Universal spark plug boot

$28.99
Sierra Distributor Cap For Mercury Marine/OMC/Volvo Engine Sierra Part #18-5361

Sierra Distributor Cap For Mercury Marine/OMC/Volvo Engine Sierra...

Key Features
  • Sierra Part #18-5361

  • Distributor cap

  • For Mercury Marine/OMC/Volvo engine

$8.04
Aqua Power Complete Performance Marine Tune-Up Kit

Aqua Power Complete Performance Marine Tune-Up Kit

Key Features
  • Includes cap, rotor, points, and condenser

  • For Ford and GM V-8 engines with:

  • Prestolite breaker point ignition systems

  • (screw-down cap)

$39.99
Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18-8832-1

Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18...

Key Features
  • Sierra Part #18-8832-1

  • Wiring/plug set

  • For Mercury Marine engine

$64.99
Sierra Tuneup Kit For OMC/Mercruiser Engine, Sierra Part #18-5283

Sierra Tuneup Kit For OMC/Mercruiser Engine, Sierra Part #18-5283...

Key Features
  • Sierra Part #18-5283

  • Tuneup kit

  • For OMC/Mercruiser engine

$65.99
Sierra Wire/Spark Plug For OMC Engine, Sierra Part #18-8818-1

Sierra Wire/Spark Plug For OMC Engine, Sierra Part #18-8818-1

Key Features
  • Sierra Part #18-8818-1

  • Wire/spark plug

  • For OMC engine

$9.99
Sierra Wiring/Plug Set For OMC Engine, Sierra Part #18-8806-1

Sierra Wiring/Plug Set For OMC Engine, Sierra Part #18-8806-1

Key Features
  • Sierra Part #18-8806-1

  • Wiring/plug set

  • For OMC engine

$59.99
Electronic Conversion Kit Ford GM V-8 Engines - Mallory

Electronic Conversion Kit Ford & GM V-8 Engines - Mallory

Key Features
  • Easily installed

  • Not affected by oil, heat, dirt, or moisture

  • Not for use in OMC engines w/shift assist module

  • Distributor cap and rotor not included

$149.99
Sierra Spark Plug Wire Set For Mercury Marine, Sierra Part #18-8804-1

Sierra Spark Plug Wire Set For Mercury Marine, Sierra Part #18-...

Key Features
  • Sierra Part #18-8804-1

  • Mercury Marine spark plug wire set

$39.99
Sierra Spark Plug Wire Kit For Mercury Marine Engine, Sierra Part #18-5225

Sierra Spark Plug Wire Kit For Mercury Marine Engine, Sierra Part...

Key Features
  • Sierra Part #18-5225

  • Spark plug wire kit

  • Designed for Mercury Marine engine

$32.99
Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18-8838-1

Sierra Wiring/Plug Set For Mercury Marine Engine, Sierra Part #18...

Key Features
  • Sierra Part #18-8838-1

  • Wiring/plug set

  • For Mercury Marine engine

$469.99
Sierra Tuneup Kit For Mercury Marine Engine, Sierra Part #18-5247

Sierra Tuneup Kit For Mercury Marine Engine, Sierra Part #18-5247...

Key Features
  • Sierra Part #18-5247

  • Tuneup kit

  • For Mercury Marine engine

$79.99
Sierra Wiring/Plug Set For Mercury Marine/OMC Engine, Sierra Part #18-8810-1

Sierra Wiring/Plug Set For Mercury Marine/OMC Engine, Sierra Part...

Key Features
  • Sierra Part #18-8810-1

  • Wiring/plug set

  • For Mercury Marine/OMC engine

$38.99
Sierra Spark Plug Wire, Sierra Part #18-5230-9-1D

Sierra Spark Plug Wire, Sierra Part #18-5230-9-1D

Key Features
  • Sierra Part #18-5230-9-1D

  • Spark plug wire

$44.99
Sierra Tuneup Kit For OMC Engine, Sierra Part #18-5251

Sierra Tuneup Kit For OMC Engine, Sierra Part #18-5251

Key Features
  • Sierra Part #18-5251

  • Tuneup kit

  • For OMC engine

$22.99
Aqua Power Complete Performance Marine Tune-Up Kit

Aqua Power Complete Performance Marine Tune-Up Kit

Key Features
  • Includes cap, rotor, points, and condenser

  • For in-line 4-cylinder GM engines with:

  • Delco EST ignition systems

$12.99
Sierra Spark Plug Wires, Sierra Part #18-5230-9-1

Sierra Spark Plug Wires, Sierra Part #18-5230-9-1

Key Features
  • Sierra Part #18-5230-9-1

  • Spark plug wires

$33.99
Sierra Tune-Up Kit For Mercury Marine Engine, Sierra Part #18-5281

Sierra Tune-Up Kit For Mercury Marine Engine, Sierra Part #18-...

Key Features
  • Sierra Part #18-5281

  • Tune-up kit

  • For Mercury Marine engine

$31.99
Sierra Wiring/Plug Set, Sierra Part #18-8839-1

Sierra Wiring/Plug Set, Sierra Part #18-8839-1

Key Features
  • Sierra Part #18-8839-1

  • Wiring/plug set

$34.99
Sierra Wiring/Plug Set For OMC Engine, Sierra Part #18-8814-1

Sierra Wiring/Plug Set For OMC Engine, Sierra Part #18-8814-1

Key Features
  • Sierra Part #18-8814-1

  • Wiring/plug set

  • For OMC engine

$44.99

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