Air Lift Air Suspension Helper Spring Kit

Air Lift Air Suspension Helper Spring Kits: Engineered to Eliminate Squat

When a loaded truck squats, sways, or bottoms out, the consequences go beyond discomfort — handling, braking, and steering all suffer. Air Lift has been addressing this problem since 1949, pioneering air-filled helper springs that work alongside your factory suspension to restore control and confidence under load. Their lineup of air suspension helper spring kits represents decades of refinement, covering everything from light-duty coil-spring SUVs to heavy-hauling diesel trucks.

Purpose-Built Product Lines for Every Application

Air Lift's helper spring kit lineup is organized around load capacity and suspension type, making it straightforward to match the right kit to your vehicle and use case.

• LoadLifter 5000 & LoadLifter 5000 ULTIMATE: The flagship of Air Lift's helper spring lineup. These kits work with your vehicle's existing leaf spring suspension to provide up to 5,000 lbs. of load-leveling capacity. The ULTIMATE variant adds an exclusive internal jounce bumper — a closed-cell urethane foam insert inside the air spring that absorbs shock, eliminates harsh jarring on rough roads, and allows the system to run safely at zero air pressure. It's an Air Lift exclusive technology.
• LoadLifter 5000 ULTIMATE PLUS: An upgraded version featuring military-grade AN-style fittings that thread together for a metal-to-metal seal, stainless steel braided air lines for protection against road debris, and stainless steel roll plates that help protect air springs and increase load capacity by up to 10%. No air line cutting is required during installation.
• Air Lift 1000 Series: Designed specifically for coil-spring suspensions found on SUVs, CUVs, vans, cars, and pickup trucks, the Air Lift 1000 kits provide up to 1,000 lbs. of load-leveling support and are adjustable from 5–35 PSI for customized comfort and control. The series covers an exceptionally wide array of vehicle fitments, and universal kits are also available.

What Sets Air Lift Apart in This Category

Air Lift backs its air spring product lines with a limited lifetime warranty with no mileage restriction — a level of confidence rare in the suspension category. With over 450 vehicle fitments across their air spring lineup, Air Lift has invested heavily in vehicle-specific engineering rather than one-size-fits-all solutions. Each kit is designed to complement — not replace — your factory suspension, reducing squat, sway, and bottoming out while maintaining a comfortable unloaded ride.

Each kit ships complete and ready to install. A typical kit includes air springs, mounting brackets, air lines, Schrader valves, all necessary hardware, and a fully illustrated instruction manual, with most installations completable in approximately two hours.

Adjustability Is the Core Advantage

Unlike passive steel helper springs, Air Lift's air helper spring kits are fully adjustable. Inflate for a heavy haul day, deflate for an empty commute. This on-demand tunability means you're not sacrificing everyday ride quality for towing capability — a balance that has made Air Lift the go-to choice for truck owners, RV towers, and fleet operators alike.

Whether you're towing a fifth-wheel, hauling landscaping material, or just tired of your truck squatting every time you load the bed, explore the full selection of Air Lift air suspension helper spring kits to find the right solution for your vehicle.