This replacement fuel gas cap, ignition switch, and seat lock assembly with key set is designed for use with EX400 400 (2018–2023), EX400 400 ABS (2020–2023), and ER400/Z400 (2019–2022) models.The set includes components matching OEM part numbers 27048-5144, 27048-5277, 27005-0635, 27005-0717, 51049-0735, 51049-0756, 27048-5216, and 27005-0670.Constructed from aluminum and plastic, this assembly replaces worn or damaged parts and is designed for straightforward installation.Color and size match specifications.