This Champion Copper Plus 807 Spark Plug replaces Bosch W5A, Bosch W5AC, Bosch W5AS, Champion Spark Plug L78C, Motorcraft AE091, Motorcraft AE1X, Motorcraft AV1X, Autolite 4092, Autolite XS4092, NGK 5510, NGK B8HS, NGK B8HS10, NGK B8HV, Prestolite 14E1, ACDelco 41F, ACDelco 445Z, ACDelco R41CF, ACDelco S41F, ACDelco S41FR, Torch E8C, Torch E8RC, DENSO W25ECU, DENSO W27FSU, DENSO W27FSU10, DENSO W27FSZU, OEM parts and is perfect for replacement or a performance upgrade. .