The Automann Rolling Lobe Air Spring is designed to provide superior performance and reliability for your vehicle. This air spring is made of premium-grade steel and aluminum with electrostatic coating for oxidation resistance, ensuring a long-lasting and durable product. The lightweight high-strength pistons with support washers provide exceptional strength and durability, allowing perfect load equalization between axles. The compressed height of 8.50" and top plate width of 11.31" make this air spring an ideal choice for your vehicle. This air spring will help increase the life of your tires and brake linings, making it a great investment for your vehicle. FleetPride is your First Click in Heavy Duty®.