Champion 853 Copper Plus Non-Resistor Spark Plugs - CJ7Y

Spark Plug Code: CJ7Y

Plug Type: CJ7Y.
Seat Type: Gasket.
Hex Size (Inch): 0.748.
Hex Size (MM): 19.
Thread Size (Inch): 0.551.
Thread Size (MM): 14.
Thread Reach (Inch): 0.375.
Taper Diameter (Inch): 0.27.
Installed Height: 1.56.
Insulator Projection (Inch): 0.06.
Gap (Inch): 0.017-0.023.
Gap (MM): 0.43-0.58.
Center Electrode Diameter (Inch): 0.078.
Center Electrode Material: Nickel Copper Alloy.
Ground Electrode Material: Nickel Copper Alloy.
Classification: Champion Copper Plus Small Engine.
Resistor Plug: N.

Copper Plus spark plug has a copper core center electrode that allows for accurate control of heat range, optimizing performance, and longevity of the spark plug. Patented SAC-9 semi-conductor resistor for maximum EMI and RFI suppression. Patented Ultraseal coated shell for rust prevention.