The Haldex Compressor is designed to deliver consistent quality and reliable performance. It is made from quality materials and meets or exceeds OEM specifications. The Straight Thread O-Ring (STOR) gains a straight thread fitting that provides a seal between the thread and wrench flats of the fitting. Installation gaskets are included. This air brake compressor ensures optimal building up and bleeding (or release) of the necessary air pressure required for your brakes, helping to maintain brake system performance. FleetPride is your First Click in Heavy Duty®.