Firestone 11691 Air Spring Bellows for Heavy-Duty Suspension

The Firestone 11691 is a heavy-duty air spring bellows designed to provide enhanced load support and improved ride quality for trucks, RVs, and commercial vehicles. This single air helper spring is engineered to work with your vehicle's existing suspension system to increase load-carrying capacity and reduce rear-end sag when hauling heavy loads or towing trailers.

Key Features:

• Durable rubber construction for long-lasting performance
• Adjustable air pressure allows customization of load support from 5 to 100 PSI
• Helps level your vehicle when loaded or towing
• Reduces bottoming out and improves stability
• Easy to install with basic hand tools
• Works independently with your existing suspension

Firestone air helper springs are backed by over a century of rubber manufacturing expertise. This air spring bellows helps minimize body roll, improve steering control, and reduce wear on your vehicle's suspension components. Ideal for work trucks, motorhomes, and vehicles frequently used for hauling or towing applications.