2023+ Ford F-450/550/600 Chassis Cab 4-Link Rear Air Suspension – Stock Height

4-Link Rear Air Suspension (Part # 10014700):

Searching for a top-of-the-line rear suspension upgrade for your Ford F-450, F-550, or F-600 Cab and Chassis? Look no further than the Kelderman 4-Link Rear Air Suspension.

Designed to deliver the ultimate in performance, comfort, and durability, the Kelderman 4-Link Rear Air Suspension is the perfect solution for those who demand the very best from their vehicle’s suspension system. This air suspension system is engineered to provide a smoother, more comfortable ride while also improving your vehicle’s handling, stability, and payload capacity.

The Kelderman 4-Link Rear Air Suspension features a four-link design that provides maximum control and stability under heavy loads. The system uses industrial-strength airbags to absorb road shock and vibration, ensuring a smooth, comfortable ride even on rough terrain. With this suspension system installed, you’ll be able to haul heavy loads with ease, without sacrificing ride quality or handling.

The system comes with all the necessary hardware, upgraded rear sway bar assembly, trailing arms, panhard bar, air springs, and air lines. Self-Leveling Air Control Systems are also available and sold separately. With the optional air control system, you can deflate the air ride approximately 3 1/2 – 4″ with the push of a button. It will automatically return to ride height with the same button and maintain the level stance even when loaded.

Optional Air Control Systems:

The base version of these front and rear air suspension systems will be in a ‘manual fill’ package. This provides you with the necessary amount of air line, fittings, and Schrader valves to inflate and deflate the suspension like you would a tire. Several air control systems are available, so let’s go through some popular options.

Mechanical, Self-Leveling Air Control System (Part # SLKD2WD + HCVLK’s):

This is the most common air control system for any and all of our full air suspension products. It includes a 100% duty cycle VIAIR air compressor, a 3-gallon air tank, two mechanical height control valves, height control valve linkages, (2) dump valves, an air dryer, plus all wiring, fittings, and connections for installation. The air compressor is contained within a weather-resistant enclosure to protect the vital elements of the control system.

An in-cab control panel is provided, allowing you to control the ON/OFF power to the air compressor and a dump switch to activate the rear dump valve option. You can also use your factory auxiliary/upfitter switch panel for these two switches in place of the Kelderman control panel. This configuration allows the front and rear suspensions to automatically adjust the pressure within the airbags to maintain the designed ‘ride height’ of the suspension. As soon as you hook up to a trailer, the mechanical height control valves move with the suspension’s adjustment and pull air from the onboard air tank to inflate back to the ‘ride height’ position. It will also manually bleed off air pressure when you’re unloading weight, unhooking a trailer, etc. The dump valves are designed for use with the rear air suspension and allow you to flip a switch, deflate the rear suspension down approximately 4″, and pull right out from under your trailer. The onboard air dryer removes moisture from the system periodically to prevent damage to components and remain operational in cold temperatures and climates.

Mechanical, Self-Leveling Air Control System – Dual Compressor & Tank (Part # 30664 + HCVLK’s):

Want more air for your air suspension? This air control system is identical to the system referenced above, but with an additional air compressor and air tank. We tend to see this more with serious work truck applications, fleet use, trucks running at MAX GVWR, or those that plan to regularly raise & lower the rear air suspension. The additional air compressor and tank provide a quicker recovery time and make sure plenty of air is available for raising & lowering the suspension and any necessary ride height adjustments.

If you’re looking for a high-performance, reliable suspension upgrade for your Ford F-450 or F-550 Cab and Chassis, the Kelderman 4-Link Rear Air Suspension is a perfect choice. Are you interested in full front and rear air suspension for your chassis cab? Check out our combined listing for front and rear kits online here.