Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
| Electrode | : | Nickel Copper Alloy |
| Fill Gap Size | : | 0.022 to 0.028 in |
| Hex Size | : | 5/8 in |
| Material | : | Copper |
| Thread Length | : | 1/2 in |
| Thread Size | : | 0.394 in |