This is a genuine OEM switch removed from a genuine Mercury engine this is not a China knock off of the OEM design.

The 8M0042300 Mercury Optimax DFI Trim Switch is a genuine OEM part manufactured by Mercury in the United States. This trim switch is designed for outboard engines and provides a reliable solution for controlling the trim of the boat. While it does not come with a warranty, it is a quality product that meets the standards set by the manufacturer. With multiple manufacturer part numbers listed, this switch ensures compatibility and functionality for Mercury Optimax engines.