Spark Plug / Champion RC14YCPack Size:1Ariens 21540200, Briggs & Stratton 496018S, Briggs & Stratton 496018, Champion RC14YC, Champion 431, Kohler 66 132 01-SDealer Choice RC14YC, Green Line 52364, J. Thomas RC14YC, Laser 30119, NHC 268-5780, Rotary 8495, Rotary 11220Briggs & Stratton GAS ENGINES -- Vanguard V-twin OHV, 19A400-19G400 series; Kohler GAS ENGINES -- AEGIS series Boxed individually, Order 4 for complete carton, Type: Resistor