Description This Champion Spark Plug (SKU: RC12YC) is a high-quality replacement designed for reliable ignition in a wide range of outdoor power equipment. Engineered for durability and consistent performance, this spark plug ensures easy starting and smooth operation for your lawnmower, chainsaw, or generator. The RC12YC features a copper core electrode for excellent heat dissipation and long service life, making it a trusted choice for both professional and home use. Features Copper core electrode provides superior heat transfer and extended durability. Pre-gapped and ready to install for quick, hassle-free replacement. Compatible with many small engines, offering reliable ignition in various conditions. Specifications SKU RC12YC GA Spares SPKRC12YC Stens # 375-RC12YC Type Copper Core Spark Plug Thread Size 14mm Hex Size 20.6mm (13/16") Reach 19mm (3/4") Gap 0.030" (0.76mm) Fits Briggs & Stratton lawnmower engines (many models) Honda small engines (GX series, etc.) Tecumseh engines (various) Product Line Champion Spark Plugs – a leading brand for small engine ignition components, offering reliable performance for lawn and garden equipment.