6.7 Powerstroke Air Bag Helper Spring Kit – 5,000 lbs | Air Lift LoadLifter 5000 57396

Stop rear sag, trailer sway, and bottoming out on your 6.7 Powerstroke Super Duty. The Air Lift LoadLifter 5000 kit (part #57396) adds up to 5,000 lbs of adjustable rear load support so your truck stays level, stable, and in control whether you are towing a fifth-wheel, running a gooseneck, or hauling a heavy bed load. Built for 2011–2016 F-250/F-350 4WD and 2011–2014 F-450 4WD pickups, this under-frame kit works with factory leaf springs and most side-mount fifth-wheel or in-bed hitch setups. Air pressure is fully adjustable from 5–100 PSI, so you can run a firm loaded ride on the highway and drop pressure for a smoother empty ride. A Super Duty that squats under load points headlights into the sky, reduces braking and steering control, and wears leaf springs faster. These helper air springs work with the factory suspension so you keep stock ride height when empty and add support only when you need it.

Key features

• Up to 5,000 lbs of load-leveling capacity (never exceed the truck’s GVWR)
• Adjustable from 5–100 PSI for empty, partial, or max-load conditions
• 2-ply fabric-reinforced rubber bellows built like a tire
• Exclusive upper and lower roll plates protect the bags and add about 10% more capacity
• Corrosion-proof Zytel nylon end caps that are steel-strong, lighter, and rust-free
• Under-frame, no-drill installation on most applications
• Quick-connect polymer air fittings with included air line and Schrader valve
• Works with most side-mount fifth-wheel and factory in-bed hitch systems
• Fits both single rear wheel (SRW) and dual rear wheel (DRW)
• Limited lifetime warranty

Fitment

• 2011–2016 Ford F-250 Super Duty 4WD
• 2011–2016 Ford F-350 Super Duty 4WD
• 2011–2014 Ford F-450 Super Duty 4WD pickup only
• Compatible with 6.7L Powerstroke diesel and gas engines
• Rear axle / factory leaf springs

Does not fit 2WD models, cab & chassis trucks, or some four-bolt outside-frame hitch rail kits (Elite / Signature / certain custom hitches).

What’s in the box

• Pair of LoadLifter 5000 air springs
• Upper and lower roll plates
• Vehicle-specific mounting brackets and hardware
• Air line, fittings, and Schrader fill valve
• Illustrated installation manual

Notes & specs

• Compressor, in-cab gauges, and wireless controllers are not included
• Pair this kit with an Air Lift WirelessONE, LoadController, or similar onboard air system if you want to adjust pressure from the cab
• Brand/part number: Air Lift LoadLifter 5000 57396
• UPC: 729199573965
• Position: rear
• Capacity: up to 5,000 lbs
• Pressure range: 5–100 PSI
• Mount: under-frame
• Drilling: typically none
• Install time: about 1–2 hours
• Replacement spring: Air Lift 50201
• Kit weight: about 36 lbs
• Warranty: limited lifetime

Most 57396 kits bolt on with no frame drilling and install in roughly 1–2 hours with basic hand tools. Route the included air line to a convenient fill point at the bumper, bed, or license-plate area. Always set pressure for the load you are carrying and do not exceed the vehicle manufacturer’s GVWR. If your 2011–2016 6.7 Powerstroke squats when you hook up a trailer or load the bed, the Air Lift 57396 LoadLifter 5000 kit is the proven fix: 5,000 lbs of adjustable support, no-drill install, and a lifetime warranty. Level the truck. Keep the headlights on the road. Tow with confidence.