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

Plug Type: RC12YCJ
Seat Type: Gasket
Hex Size: 0.625
Hex Size (MM): 15.880
Thread Size: 0.551
Thread size (MM): 14.000
Thread Reach: 0.75
Taper Diameter: 0.25
Installed Height:1.99
Gap: 0.032-0.038
Gap (MM): 0.81-0.97
Center Electrode Diameter: 0.14
Center Electrode Materis: Nickel Copper Alloy
Ground Electrode Quantity: 1
Classification: Champion Copper Plus Small Engine
Resister Plug: Yes
Resistor Type: SAC-9
Manufacturer Heat Range:12
Electrical Terminal Type: Non-Removable Nut