Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.

Plug Type: J17LM
Seat Type: Gasket
Hex Size: 0.813
Hex Size (MM): 20.650
Thread Size: 0.551
Thread size (MM): 14.000
Thread 0.375Reach: 1
Taper Diameter: 0..36
Installed Height: 1.78
Gap: 0.023.0-0.28
Gap (MM): 0.58-0.71
Center Electrode Diameter: 0.075
Center Electrode Materis: Nickel Copper Alloy
Ground Electrode Quantity: 1
Classification: Champion Copper Plus Small Engine
Resister Plug: No
Manufacturer Heat Range: 17
Electrical Terminal Type: Removable Nut