The MGM Brakes Spring Brake Chamber comprehensively converts energy from compressed air to apply the right amount of powerful force to your semi-truck's brakes. This heavy duty spring brake chamber replacement is manufactured with high-quality parts to not only meets, but also exceeds OEM standards. This brake chamber adheres to SAE tensile strength standards with a thick steel push rod-plate exceeding OE standards. FleetPride is your First Click in Heavy Duty®.