Coil-on-plug ignition coil for selected Honda vehicles with K24A, K24Z and K24W engines listed in the fitment table. Confirmed interchange information links NBR NIC-504 with Masuma MIC-504 and Honda/Acura references 30520-R40-007 and 30520-R40-0071. Aftermarket cross references include Denso 0997001471 / DIC0145, ERA 880428 / 880428A, Febest 03640006, Fenox IC16120, Lynxauto SPL1268, Mando MMI030107, Patron PCI1147, Startvolt SC2326, Bremi 20510, Hella 5DA358057681 / 5DA230036261 / 5DA358366641, Mobiletron CH30, Delphi GN10369 / GN1036911B1 / GN1036912B1 and other confirmed alternatives.