Firestone Coil-Rite Air Helper Spring Kit (MPN: 4174)

Enhance vehicle stability and ride quality with adjustable air springs. The Firestone Coil-Rite Air Helper Spring Kit is designed to improve the ride, handling, and braking of various vehicles including cars, minivans, vans, light trucks, RVs, and SUVs. These air helper springs fit inside existing coil spring suspensions, providing additional support and creating a variable rate spring that adjusts to varying loads and road conditions. Made from durable polyurethane, the Coil-Rite springs are engineered to withstand the rigors of coil-sprung suspensions while offering a smooth ride and enhanced stability. With a load capacity of 500 to 1000 pounds, the adjustable air pressure range of 5 to 35 PSI allows for customization based on specific needs. This feature enables users to easily modify spring performance, similar to inflating a tire. The installation process is straightforward, requiring no drilling, and includes all necessary components such as brackets, air springs, hardware, and air lines for a quick setup. The Coil-Rite air helper springs not only improve steering control and braking effectiveness but also help maintain vehicle level, which can enhance headlight alignment and reduce tire wear. Additionally, the protective air cushion minimizes the risk of bottoming out by softening the contact between the axle and frame, ensuring a more comfortable driving experience. Features Made Of Durable Polyurethane To Withstand The Rigors Of Coil-Sprung Suspensions Increase Vehicle Stability: Absorbs Road Shock Providing A Smooth Ride For Passengers And Load Keep The Vehicle Level: Improves Steering Control And Braking Effectiveness, Levels Headlight Beams And Reduces Tire Wear Reduce Bottoming Out: Protective Air Cushion Softens Contact Between The Axle And Frame Discover The Difference Coil-Rite Air Helper Springs Can Make In Improving The Ride, Handling And Braking Of Your Vehicle No Drill Installation Everything Is Included For A Quick, Easy Installation. Brackets, Air Springs, Hardware, Air Line, And Separate Valves For Manual Inflation Specifications Manufacturer: Firestone Industrial Manufacturer Part Number: 4174 Type: Air Spring Load Capacity: 1000 Pound With Air Compressor: No Color: Black Quantity: Set Of 2 Pressure Range: 5 To 35 Pounds Per Square Inch Material: Urethane Mounting Type: Coil Spring Mount With Bellows: No With Air Line: Yes With Roll Plate: No With Valve: Yes Remote Type: Not Applicable With Mounting Hardware: Yes Estimated Install Time (Hours): 1 Compatibility / Fit 2007-2018 Toyota RAV4 Technical Documents crin4174.pdf warranty_guide.pdf crin4174.pdf Product Videos