Outfit your semi to be ready for the long haul with enhanced brake safety, with the OTR 2024 Standard Stroke Spring Combination Spring Brake Chamber with Expertise Built In. By utilizing a pressure-based chamber, this replacement component is able to apply the spring brakes as a safety measure once the internal air pressure falls below a certain level. Constructed with a rugged metal body to efficiently contain pressure and the energized spring brakes. FleetPride is your First Click in Heavy Duty.