| Part Description | Spark Plug |
| Reach | 0.531 |
| Thread Diameter | 18.000 |
| Ground Electrode Quantity | 4 |
| Plug Type | RHM78N |
| Installed Height (Inch) | 4.05 |
| Center Electrode Diameter (Inch) | 0.149 |
| Gap Size | 0.37 |
| Taper Diameter (Inch) | 0.29 |
| Seat Type | Flat |
| Center Electrode Tip Material | Nickel |
| Classification | Champion Industrial Plugs |
| Ground Electrode Core Material | Nickel |
| Resistor Type | Yes |
| Manufacturer Heat Range | 78 |
| Hex Size | 22.230 |
| Part Terminology | Spark Plug |