Select your vehicle to see if this part fits.

Part Number: 57399

Will fit ALL models without a fifth-wheel hitch and will also fit most side mount fifth wheel hitch applications. Does not fit cab & chassis applications. Fits factory in-bed hitch system.
  • Up to 5,000 lbs. of load-leveling capacity*
  • Eliminates squat, trailer sway, rough ride and bottoming out
  • Fits many 3/4 ton and 1 ton pickups and vans

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AIR SPRING KIT

Part No. 57399

  • 2 air springs
  • All necessary mounting brackets
  • All of the hardware needed for installation
  • Fully-illustrated installation guide

Kit Specs

Part No. 57399

Shipping Box Dimensions: 14.125 × 9.25 × 10.75 in
Shipping Weight: 34.8 lb
Installation Guide: Download Installation Guide
Replacement Air Spring: 50293
Application Type: Rear Kit
User Guide: Download User Guide
Warranty: Lifetime Limited

Kit Videos

Part No. 57399

  • Why Air? Why Air Lift?

  • LoadLifter 5000 Installation

  • On-Board Air Compressor Systems

Kit Compatible Vehicles

Part No. 57399

YearMakeModelDrive
2023FORDF-450 SUPER DUTY4 Wheel Drive
2022FORDF-450 SUPER DUTY4 Wheel Drive
2021FORDF-450 SUPER DUTY4 Wheel Drive
2020FORDF-450 SUPER DUTY4 Wheel Drive
2019FORDF-250 SUPER DUTY PICKUP4 Wheel Drive
2019FORDF-350 SUPER DUTY PICKUP4 Wheel Drive
2019FORDF-450 SUPER DUTY4 Wheel Drive
2018FORDF-250 SUPER DUTY PICKUP4 Wheel Drive
2018FORDF-350 SUPER DUTY PICKUP4 Wheel Drive
2018FORDF-450 SUPER DUTY4 Wheel Drive
2017FORDF-250 SUPER DUTY PICKUP4 Wheel Drive
2017FORDF-350 SUPER DUTY PICKUP4 Wheel Drive
2017FORDF-450 SUPER DUTY4 Wheel Drive

* Never exceed manufacturer’s recommended Gross Vehicle Weight Rating.

CALIFORNIA WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Heavy Duty Springs

For Your Heavy Duty Truck.

The LoadLifter 5000™ air suspension kits fit many 1/2-, 3/4-, and 1-ton pickups and vans to haul the big stuff. Perfect for commercial trucks, wreckers, ambulances, construction and utility trucks.

Up To 5,000 LBS.

Of Load Leveling Greatness.*

Our air springs beef up your existing suspension to boost your safety and comfort when hauling massive loads.