Rare Sun Electric 4000 RPM Tach W/ Fuel Economy Markings Truck Hot Rod

This is a rare Sun Electric 4000 RPM tachometer gauge with fuel economy markings, designed for use in trucks and hot rods. The gauge is designed to measure the revolutions per minute (RPM) of the engine, and also includes markings for fuel economy. It is a high-quality and reliable gauge, made to withstand the harsh conditions of use in older vehicles.