CHRA4HCX - CHAMPION RACE SPARK PLUG RA4HCX 12mm THREAD 19mm REACH - EACH

Spark Plug Thread Size: 12mm

Spark Plug Reach (in.): 0.750 in.

Spark Plug Reach (mm): 19.05mm

Manufacturer Heat Range: 4

Shorty Spark Plug: No

Resistor: Yes

Electrode Tip Material: Nickel copper alloy

Wrench Diameter: 5/8 in.

Ground Strap Quantity: One

Quantity: Sold individually.

Champion racing spark plugs position the spark approximately 1/16 in. into the combustion chamber and feature colder heat ranges that use a shortened ground electrode. This is designed to aid in exposing the spark to the air/fuel mixture to help prevent pre-ignition from an overheated ground electrode. The spark plugs are constructed with a nickel shell for faster heat dissipation and a copper core (or double core) for further heat removal. Choose non-resistor Champion racing spark plugs for your high-horsepower engine.