The Black Diamond Pressure Switch is a genuine replacement part designed to regulate air pressure and ensure proper operation of your air compressor. With an operating range of 100–130 PSI, this durable 4 port pressure switch with an integrated bleeder helps the compressor motor turn on and off at the correct pressure levels for maximum efficiency. Ideal for replacing a faulty switch when the motor cuts out prematurely or fails to start at the proper PSI, it provides reliable, long lasting performance to keep your compressor running smoothly.