Air Suspension Kits

Does the rear end sag when the trailer or load bed is full, or do you want to be able to adjust the ride height with air? In this category we have gathered air suspension kits and helper air springs that can support or replace the existing suspension. They are for you if you drive with a load or want to control the height yourself.

Helper springs or complete air suspension?

The kits typically fall into two groups. Helper air springs, e.g. Firestone Ride-Rite and Coil-Rite, are fitted together with the existing springs and can help the car stay level when loaded. Complete air suspension kits, on the other hand, can replace the original springs and make it possible to adjust the ride height. If you only need the bellows themselves, you will find them under air springs.

How to choose the right kit

Load capacity alone does not decide the choice. Look at several factors:

• Purpose: Should the kit only provide support under load, or do you want to adjust the ride height? That determines whether helper springs are enough.
• Fitment: The kits are typically built for specific cars and for the front or rear axle, so check the part number against your car.
• Control: Some systems can be expanded with a control system, and there are e.g. mounting plates for Firestone Air Command.
• Interaction: A changed ride height may require matched shock absorbers or control arms, depending on the car and project.

In addition to Firestone, you will find brands such as Ridetech, Carli and ICON, e.g. ICON Air Ride Kit.

Installation, maintenance and inspection

Air lines and fittings must be routed away from hot parts and sharp edges. Check the system regularly for leaks, and follow the manufacturer's instructions for minimum and maximum pressure, as the pressure can affect both handling and load capacity. Changes to suspension and ride height may require an inspection and approval. This depends on the product and car, so check it for the specific part number. You will find more chassis parts among our suspension components.

Frequently asked questions

Do helper air springs increase the car's permitted load capacity?

No. They can reduce sagging and help the car stay level under load, but the permitted gross vehicle weight and permitted axle load do not change. Always observe the limits in the car's registration document.

Does the car need an inspection after fitting air suspension?

It depends on the product and car. Kits that change the ride height or the design of the suspension may require an inspection. Check the documentation for the specific part number before you fit it.

Why do the air springs lose pressure?

Pressure loss is typically caused by a leaking fitting, a damaged line or a worn bellow. Check the joints with soapy water, and look for lines resting against hot parts or sharp edges.