F-250 / F-350 2020–2021 LoadLifter 7500 XL Helper Spring Kit | Air Lift 57552

Built for a single-rear-wheel Super Duty that tows and hauls hard. The Air Lift LoadLifter 7500 XL kit (part #57552) uses massive 7-inch double-convoluted air springs to add up to 7,500 lbs of rear load-leveling capacity on 2020–2022 F-250 and F-350 4WD SRW trucks. That is about 20% more air volume than a LoadLifter 5000 bag, so you get more support at lower pressure and less squat, trailer sway, and bottoming out. This kit also includes an internal jounce bumper to absorb shock and help protect the truck if a bag loses air. 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
• Internal jounce bumper for added bottom-out protection
• 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
• Under-frame mounting 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-250 Super Duty 4WD single rear wheel (SRW)
• 2020–2022 Ford F-350 Super Duty 4WD single rear wheel (SRW)
• Compatible with 6.7 Powerstroke diesel and gas engines
• Rear axle / factory leaf springs

Does not fit dual rear wheel (DRW / dually) trucks or commercial cab-and-chassis models.

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 57552
• UPC: 729199575525
• Position: rear
• Capacity: up to 7,500 lbs
• Pressure range: 5–100 PSI
• Bellow size: 7-inch double-convoluted
• Wheel setup: SRW only
• Mount: under-frame
• Drilling: typically none
• Install time: about 2 hours
• Replacement spring: Air Lift 50236
• Kit weight: about 57 lbs
• Warranty: limited lifetime

Most 57552 kits bolt on with no frame drilling. 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-250 or F-350 4WD SRW squats under a fifth-wheel, gooseneck, or heavy bed load, the Air Lift 57552 LoadLifter 7500 XL kit adds 7,500 lbs of adjustable rear support.