4118 Firestone Industrial Helper Spring Kit Manufacturer: FIRESTONE Availability: 32 in stock SKU: FRS4118 4118 Firestone Industrial Helper Spring Kit $143.92 Qty: Add to cart Ship to Select country United States of America * Other * Shipping Method Name Estimated Delivery Price No shipping options Apply Custom wishlist OK Add to wishlist Add to compare list Email a friend 1: Discover the difference Coil-Rite air helper springs can make in improving the ride, handling and braking of your vehicle. Coil-Rite air helper springs provide extra support for coil springs in cars, minivans, vans, light trucks, RV’s and SUV’s. The adjustable Coil-Rite air helper springs will level your vehicle, provide a smoother ride, and assist with more effective braking and handling, even under heavy loading and adverse road conditions. Coil-Rite air helper springs are designed to fit inside existing coil spring suspensions, creating a variable rate spring. These air helper springs are made of durable, elastic polyurethane, providing years of comfort and stability to your vehicle. Firestone’s Coil-Rite air helper springs enable adjustment for varying loads and road conditions by controlling the air pressure in the air helper springs. Spring performance can be altered as easily as inflating a tire. The air springs will support 500 To 1000 Pounds per set.Air SpringMounts Inside Coil Spring500 to 1000 Pound Leveling CapacityAdjustable from 5 to 35 PSIPolyurethaneIncludes Air Springs/Brackets/Air Line/HardwareAir Compressor Sold Separately Discover the difference Coil-Rite air helper springs can make in improving the ride, handling and braking of your vehicle. Coil-Rite air helper springs provide extra support for coil springs in cars, minivans, vans, light trucks, RV’s and SUV’s.