Spark Plug / NGK UR4Pack Size:1Cushman 830931, John Deere AM38027, NGK UR4, NGK 6630Dealer Choice 6630, ESF 174-227, Foley/PLP 174-227, Green Line 52358, J. Thomas UR4, Mow More NGUR4, NHC 268-5186, Oregon 77-227, Ratio Parts 6-630, Rotary 5857Kohler GAS ENGINES -- 17.0/KT17, 19.0/KT19, 21.0/KT21, 16.0/MV16, 18.0/M18, MV18, 20.0/M20, MV20, OHC Boxed individually, Order 4 for complete carton, Type: Resistor