The TSE Brake S-Cam Spring Brake Chamber is the perfect choice for your heavy duty vehicle. This all-steel modular design offers more size options for a wide range of applications. The spring is made from chrome silicon pre-tempered wire and is specially coated to provide you with premium life and durability characteristics. The chamber is clamped service side for easy-to-install serviceability. It is guaranteed to have 100% coating and consistent thickness for excellent corrosion protection and superior performance. FleetPride is your First Click in Heavy Duty®.