Firestone 4108 Ride-Rite Coil-Rite Air Helper Spring Kit

The Firestone Ride-Rite Coil-Rite Air Helper Spring Kit is engineered to enhance the performance of vehicles with coil spring suspension systems. These innovative air helper springs install inside your existing coil springs to create a variable spring rate, providing superior load support and ride quality.

Key Features:

• Installs inside existing coil springs for seamless integration
• Adjustable air pressure allows customization for varying loads and road conditions
• Supports 500-1,000 lbs. per set without exceeding vehicle GVWR
• Constructed from durable, elastic polyurethane for long-lasting performance
• Operates reliably in temperatures from -40°F to 180°F (-40°C to 82°C)
• Improves vehicle leveling, braking response, and handling characteristics
• Reduces body roll and rear-end sag under heavy loads

The Coil-Rite system gives you complete control over your suspension performance. Simply adjust the air pressure as you would inflate a tire to compensate for different payload weights or challenging road conditions. This versatility makes the kit ideal for vehicles that tow trailers, carry heavy cargo, or encounter varying load situations.

Firestone's polyurethane construction ensures years of reliable service while maintaining ride comfort and stability. Whether you're hauling equipment, towing a trailer, or driving unloaded, Coil-Rite air helper springs adapt to deliver optimal suspension performance.