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.
*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.
· · · SHIPPING · · ·
Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
Canada customers - If eBay does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.
· · · RETURNS · · ·
Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.
Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
Any returns received installed, mounted, used or missing components will be subject to return fee's.
· · · PAYMENTS · · ·
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PayPal, and all major credit cards/debit cards are accepted.
· · · FEEDBACK · · ·
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· · · CONTACT US · · ·
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