Air Lift 57399 LoadLifter 5000 Rear Air Spring Kit for 2017-2024 Ford Super Duty

Vehicle Fitment

• 2017-2019 Ford F-250 Super Duty (4WD, SRW & DRW, all trims)
• 2017-2019 Ford F-350 Super Duty (4WD, SRW & DRW, all trims)
• 2017-2024 Ford F-450 Super Duty (4WD, SRW & DRW, all trims)

Features

• Air Lift LoadLifter 5000 rear air spring helper kit for improved load support
• Up to approximately 5,000 lb of load-leveling capacity when towing or hauling
• Air springs adjustable from ~5 to ~100 PSI for custom ride control
• Helps eliminate rear sag, trailer sway, bottoming out, and rough ride under load
• Reinforced dual-bellow air springs for durability and strength
• Includes roll plates to protect air springs from sharp edges
• Quick-connect air lines and hardware for easier installation
• Limited lifetime warranty with 60-day ride satisfaction guarantee

Specifications

• Part Number: 57399
• Series: LoadLifter 5000 Rear Air Spring Kit
• Maximum Load Support: ~5,000 lb (do not exceed vehicle GVWR)
• Air Pressure Range: ~5-100 PSI
• Air Spring Construction: Reinforced dual-bellow bellows
• Installation Position: Rear leaf spring suspension
• Drive Compatibility: 4WD only (single & dual rear wheel)
• Includes mounting hardware, air lines, fittings, and valves

Included Components

• 2x Rear dual-bellow air springs
• Air line with quick-connect fittings
• Upper and lower roll plates
• Manual inflation valves
• Mounting brackets and hardware
• Installation instructions

Product Description

The Air Lift 57399 LoadLifter 5000 Rear Air Spring Kit is engineered for **2017-2019 Ford F-250 and F-350 Super Duty** and **2017-2024 Ford F-450 Super Duty** trucks equipped with rear leaf spring suspension. This adjustable air spring system provides up to approximately 5,000 lb of load-leveling capacity, helping maintain proper ride height, improve braking and steering control, and reduce common issues like rear sag, trailer sway, and bottoming out when towing or hauling heavy loads.

Featuring reinforced dual-bellow air springs adjustable from about 5 to 100 PSI, the LoadLifter 5000 kit allows drivers to tailor ride firmness and support based on payload and driving conditions. The included roll plates protect the air springs from sharp suspension edges, while quick-connect air lines and complete mounting hardware simplify installation. Backed by a limited lifetime warranty and a 60-day ride satisfaction guarantee, this kit offers robust, adjustable load support for Super Duty owners tackling demanding towing and hauling tasks.