Champion RC12YC Copper Plus Spark Plug, 14mm Thread, 3/4-Inch Reach

The Champion RC12YC Copper Plus Spark Plug delivers dependable ignition performance for compatible gasoline engines. Featuring a copper-core center electrode, this spark plug promotes efficient heat transfer and consistent ignition to support reliable engine starting and operation. Its resistor design helps reduce electrical interference, while the corrosion-resistant shell provides added durability. Designed with a 14mm thread diameter and 3/4-inch reach, the RC12YC is suitable for select automotive, lawn and garden, and small-engine applications. Ideal for routine engine maintenance and spark plug replacement, this Champion Copper Plus spark plug helps maintain dependable engine performance when used in compatible equipment.