?Dazakoot Tender Spring?16? Single Tender spring kit designed to improve load handling capabilities of the vehicle's suspension system. The spring acts as a buffer and protection, prevent lines from being dragged to the ground. Replaces Tectran 9820-1, Tectran 9420-1, Tramec Sloan 580111-1, Phillips 17-420 and so on. ?Galvanized Carbon Steel Spring?Spring is crafted from carbon steel, ensuring exceptional elasticity and toughness for sustained high-performance and an extended lifespan. Additionally, the spring's surface is galvanized to prevent corrosion and rust from rain. It confidently handles a maximum load of up to 30LBS. ?Black Plastic Protect Sleeve? Tender spring is equipped with a sturdy plastic protective sleeve to prevent the spring from tangling with wires and air hoses, while also shielding it from direct sunlight exposure. ?High Quality Hanger Bracket?The air line clamps are constructed from high-quality 304 premium stainless steel material, ensuring durability and resistance to rust, corrosion, and water damage. These clamps are specifically designed with rubber cushioning for added protection. ?Easy Installation and Compatibility? Tender spring kits are generally designed for easy installation and compatibility with 3 in 1 air line kit for semi truck . We have an additional hook to accommodate various semi truck suspension rod diameters, you can according your vehicle's make, model, and suspension setup to ensure proper fitment and functionality. ?Comes with an Additional Tender Spring?You can choose to use just one or, after detaching your trailer hitch, take out the extra spring tube provided by DAZAKOOT to suspend your air and electrical lines. This prevents them from falling and reduces wear and tear. Product description 16" Single Tender Spring Kit for Semi Truck Tractor Trailer