The MGM Brakes S-Cam Drum Brake Chamber is designed to provide superior braking performance and reliability. This brake chamber is constructed with a reinforced non-pressure chamber housing and welded mounting bolts for added strength and durability. The low friction internal push rod polymer guide with nitrile rubber air seal ensures smooth and consistent braking performance. The tamper resistant parking chamber design prevents unauthorized access to the brake chamber. The epoxy coated heavy duty steel non-pressure chamber housing provides superior corrosion resistance and long lasting performance. FleetPride is your First Click in Heavy Duty®.