Champion Copper Plus spark plugs have been original equipment on a wide variety of engines for many years. These plugs have nickel alloy centers and ground electrodes, with reasonably good wear characteristics. In addition, the extrusion of copper into the center electrode allows for increased conductivity and heat control.
| Center Electrode Tip Material | Nickel Copper Alloy |
| Classification | Champion Copper Plus Small Engine |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Electrode Core Material | Nickel Copper Alloy |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | J Gap |
| Hex Size | 0.813 In., 20.650 mm |
| Manufacturer Heat Range | 19 |
| Plug Type | RJ19LM |
| Reach | 0.375 In. |
| Resistor Type | Yes |
| Thread Diameter | 0.551 In., 14.000 mm |
