Spark Plugs

Upgrade to high-performance spark plugs to increase fuel mileage and horsepower or to lower emissions. Several innovations in spark plugs have yielded performance gains over traditional L or J shaped electrodes, and new materials have been incorporated to extend plug life. JEGS stocks spark plugs from many leading manufacturers: Accel, ACDelco, Autolite, Bosch, Brisk, Champion, Denso, E3 Spark Plugs, Motorcraft, and NGK.

Individual Products Product Groups
Ignition & Electrical Spark Plugs









E3 Spark Plugs E3 Spark Plug 14mm


E3 Spark Plug
  • Resistor: Resistor
  • Hex Size: 5/8"
  • Thread Reach: 0.460"
  • Thread Diameter: 14mm
  • Seat: Taper
  • Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted
  • 1/pkg
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  • $5.95
    Ships Monday
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    (10)


    Champion Spark Plugs Copper Plus SE Spark Plug


    Copper Plus SE Spark Plug
  • Type: RC12YC
  • Hex Size: 0.625"
  • Thread Size: 0.551"
  • Gap: 0.032"-0.038"
  • Material: Nickel Copper Alloy
  • Seat Type: Gasket
  • Heat Range: 12
  • 1/Pkg.
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  • $2.99
    Ships Monday
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    (2)


    E3 Spark Plugs E3 Spark Plug 14mm


    E3 Spark Plug
  • Resistor: Resistor
  • Hex Size: 5/8"
  • Thread Reach: 0.708"
  • Thread Diameter: 14mm
  • Seat: Taper
  • Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted
  • 1/pkg
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  • $5.95
    Ships Monday
    Lowest Price Guarantee
    (9)




    E3 Spark Plugs E3 Spark Plug 14mm


    E3 Spark Plug
  • Resistor: Resistor
  • Hex Size: 13/16"
  • Thread Reach: 0.375"
  • Thread Diameter: 14mm
  • Seat: Gasket
  • Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted
  • 1/pkg
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  • $5.95
    Ships Monday
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    (7)

    Champion Spark Plugs Racing Spark Plug


    Racing Spark Plug
  • Type: C59YC
  • Hex Size: 0.625"
  • Thread Size: 0.551"
  • Gap: 0.023"-0.028"
  • Material: Nickel Copper Alloy
  • Seat Type: Gasket
  • Heat Range: 59
  • 1/Pkg.
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  • $3.99
    Ships Monday
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    (3)


    E3 Spark Plugs Racing Spark Plug Non-Resistor


    Racing Spark Plug
  • Non-Resistor
  • Hex Size: 5/8"
  • Thread Reach: .750"
  • Thread Diameter: 14mm
  • Seat: Gasket
  • Heat Range: Medium
  • Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted
  • 1/pkg
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  • $5.95
    Ships Monday
    Lowest Price Guarantee



    E3 Spark Plugs E3 Spark Plug 14mm


    E3 Spark Plug
  • Resistor: Resistor
  • Hex Size: 5/8"
  • Thread Reach: 0.750"
  • Thread Diameter: 14mm
  • Seat: Gasket
  • Tip/Gap: DiamondFIRE Fixed Gap Cannot Be Adjusted
  • 1/pkg
    View Details
  • $5.95
    Ships Monday
    Lowest Price Guarantee
    (7)






    E3 Spark Plugs Racing Spark Plug Non-Resistor


    Racing Spark Plug
  • Non-Resistor
  • Hex Size: 5/8"
  • Thread Reach: .750"
  • Thread Diameter: 14mm
  • Seat: Gasket
  • Heat Range: Cold
  • Tip/Gap: DiamondFire Fixed Gap Cannot Be Adjusted
  • 1/pkg
    View Details
  • $5.95
    Ships Monday
    Lowest Price Guarantee
    (1)