Prepare your semi to be Ready for the Road Ahead with enhanced safety measures, with the Cummins 1/8"-27 NTP Air Pressure Switch Kit. With a built-in pressure regulator, this replacement set is able to disengage the compressor anytime pressure levels become too high or too low. Created with rugged materials to withstand demanding operating conditions. The air conditioning and heating system in heavy duty trucks has a major impact on drivers’ safety and comfort level. Whether you are looking for A/C compressors, condensers, driers, freon, or blower motors, FleetPride has the part you need to make sure your air conditioning and heating are well maintained. Keep your heavy duty fleet operations working as productively and efficiently as possible by finding the right air conditioning and heating part for you. FleetPride is your First Click in Heavy Duty .