The Hendrickson S-37026-U or S37026U is a spring and service brake chamber assembly, Type 16/24, designed for air brake systems on heavy-duty trucks and trailers equipped with Hendrickson suspension. This is a combination chamber that integrates both the service brake function and the spring-actuated parking/emergency brake function in a single unit. The Type 16/24 designation identifies the effective diameters of the service and spring sections respectively. A genuine Hendrickson part sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.FeaturesHendrickson OEM part number S-37026-U or S37026UCombination spring and service brake chamber assemblyType 16/24 designation identifies service and spring chamber sizesDesigned for heavy-duty air brake systems on Hendrickson-equipped vehiclesSold by Pro Gear and TransmissionTech SpecsType: 16/24 Spring & Service Brake ChamberPart Number: S-37026-U or S37026UCross-Reference: HNS-37026-UConfiguration: Combination spring brake and service brake (piggyback) chamber