The Air Lift LoadLifter 7500XL Ultimate is a heavy-duty rear load-leveling air spring kit for the Ford F-250/F-350/F-450 4WD 2017-2019. Rated up to 7500 lbs of load-leveling capacity and adjustable from 5 to 100 PSI - it eliminates squat - sag - trailer sway - and bottoming out when towing or hauling. The Ultimate design adds an internal closed-cell-urethane jounce bumper so the springs are safe to run at zero pressure if air is ever lost. The 2-ply fabric-reinforced air springs install with common hand tools and no frame drilling - and are backed by a limited lifetime warranty.
Specifications
| Type | Heavy-duty rear load-leveling air spring kit (Ultimate) |
| Capacity | Up to 7500 lbs of load-leveling capacity |
| Air Pressure | 5 to 100 PSI adjustable |
| Jounce Bumper | Internal closed-cell-urethane - safe at zero pressure |
| Air Spring | 2-ply fabric-reinforced bellows |
| Mounting | Between frame and existing suspension - no drilling |
| Includes | Air springs - mounting hardware - air line - inflation valves |
| Part Number | 57577 |
| Warranty | Limited lifetime |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2019 | Ford | F-250 Super Duty | King Ranch |
| 2017-2019 | Ford | F-250 Super Duty | Lariat |
| 2018-2019 | Ford | F-250 Super Duty | Limited |
| 2017-2019 | Ford | F-250 Super Duty | Platinum |
| 2017-2019 | Ford | F-250 Super Duty | XL |
| 2017-2019 | Ford | F-250 Super Duty | XLT |
| 2017-2019 | Ford | F-350 Super Duty | King Ranch |
| 2017-2019 | Ford | F-350 Super Duty | Lariat |
| 2018-2019 | Ford | F-350 Super Duty | Limited |
| 2017-2019 | Ford | F-350 Super Duty | Platinum |
| 2017-2019 | Ford | F-350 Super Duty | XL |
| 2017-2019 | Ford | F-350 Super Duty | XLT |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
