Product Details: Update your semi truck with enhanced support for its air springs, with the Hendrickson 18" Ride Air Spring Mounting Kit that ensures you're Ready for the Road Ahead™. This replacement component works to hold an air spring in place while it reacts to bumps and vibrations from the roadway. Engineered with a precise design to efficiently lock the spring in a secure position. FleetPride is your First Click in Heavy Duty®.