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    Pulstar be1i Iridium Pulse Spark Plug, Pack of 1
    Automotive Parts and Accessories (Pulstar)


    Pulstar

    List Price: $13.95
    Price: $11.99
    You Save: $1.96 (14%)

    • A lifetime limited warranty
    • Up to 12% more horsepower and torque allows for higher towing capacity and overall power
    • Pulstar recommends setting gap to OEM specifications for your vehicle

    Bosch (4504) HGR9DQI Platinum IR Fusion Spark Plug, Pack of 1
    Automotive Parts and Accessories (Bosch)


    Bosch

    List Price: $14.33
    Price: $4.69
    You Save: $9.64 (67%)

    • Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life
    • Revolutionary surface air gap firing technology featuring Bosch's unique four ground electrode design delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement
    • Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system

    Denso IT16 Iridium Spark Plug , Pack of 1
    Automotive Parts and Accessories (Denso)


    Denso

    List Price: $0.00
    Price: $8.03



    Bosch (4013) HR9LPX Platinum Plus Spark Plug, Pack of 1
    Automotive Parts and Accessories (Bosch)


    Bosch

    List Price: $3.79
    Price: $2.67
    You Save: $1.12 (30%)

    • Contains one spark plug
    • Exclusive platinum technology in the center electrode for quicker starts, smoother acceleration and increased fuel efficiency
    • Factory-set gap Вї once the proper gap is set, there's no need to re-gap

    Autolite XP5245 Xtreme Performance Iridium Spark Plug, Pack of 1
    Automotive Parts and Accessories (Autolite)


    Autolite

    List Price: $6.99
    Price: $5.48
    You Save: $1.51 (22%)

    • Iridium-enhanced 6mm center finewire electrode for improved ignitability, durability and wear resistance
    • More focused ignition for better flame kernel growth and faster fuel combustion for better engine performance
    • Original Equipment (OE) form, fit and function five-year limited warranty

Spark Plug Gap - NGK Spark Plugs - Tech Video

Correct way to check, set and adjust your spark plug gap. NGK Spark Plugs USA.

Aircraft spark plug gap and electrode design

Aircraft spark plugs have either a massive electrode or a fine wire electrode design. What is the difference and what role electrode gap plays in ...

How To Use a Spark Plug Gap Tool

Easy to follow video tutorial on how to use a Spark Plug Gap Tool.