This tachometer is designed for use in a 1986 Freightliner FLC112 commercial truck. It is compatible with Motorola brand and has the manufacturer part number 7ST23040F2. This instrument panel is essential for monitoring the engine speed of your vehicle, providing accurate readings for efficient driving. It is a high-quality replacement part for your truck's dashboard and will help keep you informed about your engine's performance. Clearing out old stock, missing 2 6-32 nuts that left the box.