Towing and hauling put real stress on factory rear suspension, and leaf springs that sag under load create an unlevel stance, increased trailer sway, and a rough ride. Rough Country's Rear Air Spring Kit for the 2021-2026 4WD F-150 adds adjustable air support behind the rear axle, keeping the truck level and composed whether the bed is empty or loaded to the limit. The kit supports up to 5,000 lbs of load, and every component needed for a complete installation ships in the box.
Heavy-duty construction built for real work. Two double-convoluted air bags form the core of the kit, reinforced by powder-coated steel brackets and DOT-approved airlines. The 1/4-inch push-to-connect air fittings simplify hookup, and the durable brackets secure everything without improvised mounting. The result is a setup that handles repeated loading cycles without fatiguing or shifting out of alignment.
Leveling that protects your trailer connection. When a truck sags under tongue weight, steering feel degrades and trailer sway increases. This kit keeps the rear end at proper ride height, reducing sway and preventing the axle from bottoming out during hard braking or sharp steering inputs. Ride quality on an unladen truck stays intact because pressure is adjustable to match the load.
Optional onboard air compressor and wireless controller. Rough Country offers the kit with an optional onboard air compressor, and a further option adds a wireless remote controller. With either compressor option, pressure adjustments happen from inside the cab without hunting for a shop air line. Choose the configuration that fits how you use the truck.
Product Benefits
- Load Support: Carries up to 5,000 lbs to keep the truck level under towing and hauling demands.
- Double-Convoluted Air Bags: Dual-convolution design handles repeated compression cycles without wearing out prematurely.
- DOT-Approved Airlines: Meets Department of Transportation standards for air line integrity and safety.
- Powder-Coated Steel Brackets: Resist corrosion through exposure to road salt, moisture, and grime.
- Push-to-Connect Fittings: 1/4-inch fittings speed up installation and provide a secure, leak-free connection.
- Reduced Sway and Bottoming Out: Maintains proper axle travel and geometry under braking and cornering with a load.
- Flexible Compressor Options: Available without a compressor, with an onboard compressor, or with a compressor and wireless remote.
- Warranty Coverage: Limited lifetime warranty on air springs; two-year replacement warranty on the compressor.
- Complete Kit: All necessary bracketry and hardware included for a clean installation.
Note: Fits 2021-2026 F-150 4WD models only. Does not fit PowerBoost. Does not fit models with frame side mounted 5th wheel hitches. Does not increase towing capacity. Minor drilling required for installation.
About Rough Country: Rough Country designs and manufactures suspension lift kits, leveling kits, accessories, and air management products focused on trucks and off-road vehicles. The brand builds its product line around practical, durable solutions for owners who use their vehicles for work and recreation, backed by an in-house engineering team and dedicated customer support.
WARNING: California Residents: Cancer and Reproductive Harm;
www.p65warnings.ca.gov
Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Fitment | 2021, 2022, 2023, 2024, 2025, 2026 |
