Product Details
Copper Plus Spark Plug (991) by Champion®. Built with nickel alloy center and ground electrodes, these spark plugs provide extra durability for long-lasting service life, while the extrusion of copper into the core of their center electrode allows for an increase in conductivity and heat control to ensure reliable and dependable performance.
Specifications
| Resistor Plug: Yes |
| Center Electrode Diameter: 0.078" |
| Center Electrode Material: Copper |
| Electrical Terminal Type: Non-Removable Nut |
| Gap: 0.033"-0.038" |
| Ground Electrode Material: Nickel Copper Alloy |
| Ground Electrode Quantity: 1 |
| Heat Range: 8 |
| Hex Size: 11/20" |
| Installed Height: 1.990" |
| Insulator Projection: 0.120" |
| Plug Type: REA8MCX |
| Resistor Type: FISS |
| Spark Plug Seat Style: Gasket |
| Taper Diameter: 0.200" |
| Thread Reach: 1.043" |
| Thread Size: 0.472" |
Features
- Resists fouling
- Superior corrosion resistance
- Dependable and proven performance
- Increased conductivity and heat control for good overall wear
For over 110 years, Champion® has been a world leader in the manufacture of spark plugs for a wide range of cars, SUVs, trucks, racing, and marine applications. Using the latest technology, from iridium and precious metal technologies, to F.I.S.S. resistor (Fired In Suppressor Seal) technology and MLR (Metal alloy Low ohm Resistor) technology, the company develops, engineers, and manufactures spark plugs in a number of materials and designs. Champion also offers a variety of glow plugs, spark plug wires, and other ignition system specific wiring that meet the industry’s toughest standards.