F-350 2020–2021 LoadLifter 7500 XL Helper Spring Kit | Air Lift 57550

Built for a dually that works hard. The Air Lift LoadLifter 7500 XL kit (part #57550) is Air Lift’s heavy-hauler rear helper spring kit for 2020–2022 F-350 Super Duty 4WD dual-rear-wheel trucks. Massive 7-inch double-convoluted air springs add up to 7,500 lbs of load-leveling capacity and about 20% more air volume than a LoadLifter 5000 bag, so you get more support at lower pressure. That helps keep a loaded F-350 level with less squat, trailer sway, and bottoming out. Air pressure is fully adjustable from 5–100 PSI.

Key features

• Up to 7,500 lbs of load-leveling capacity (never exceed the truck’s GVWR)
• About 20% more air-spring volume than LoadLifter 5000 bags
• 7-inch double-convoluted bellows for heavy towing and hauling
• Adjustable from 5–100 PSI for empty, partial, or max-load conditions
• 2-ply fabric-reinforced rubber construction
• Exclusive upper and lower roll plates protect the bags and help increase capacity
• Corrosion-proof nylon composite end caps that are steel-strong, lighter, and rust-free
• Compatible with most fifth-wheel and gooseneck hitch setups
• Quick-connect air fittings with included air line and Schrader valve
• Limited lifetime warranty

Fitment

• 2020–2022 Ford F-350 Super Duty 4WD dual rear wheel (DRW) only
• Compatible with 6.7 Powerstroke diesel and gas engines
• Rear axle / factory leaf springs

Does not fit single rear wheel (SRW) trucks, Tremor models, or commercial cab-and-chassis trucks.

What’s in the box

• Pair of LoadLifter 7500 XL 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 7500 XL 57550
• UPC: 729199575501
• Position: rear
• Capacity: up to 7,500 lbs
• Pressure range: 5–100 PSI
• Bellow size: 7-inch double-convoluted
• Wheel setup: DRW / dually only
• Drilling: may be required depending on application
• Install time: about 2 hours
• Kit weight: about 59 lbs
• Warranty: limited lifetime

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 2020–2022 F-350 4WD dually squats under a fifth-wheel, gooseneck, or heavy bed load, the Air Lift 57550 LoadLifter 7500 XL kit adds 7,500 lbs of adjustable rear support made for the biggest Super Duty jobs.