Air Lift LoadLifter 5000 Air Spring Kit | 21-26 Ford F-150 PowerBoost Hybrid

Heavy-Duty Load-Leveling Suspension Support Purpose-Built for Hybrid Towing Platforms

The Air Lift LoadLifter 5000™ Air Spring Kit (MPN: 57389 | SKU: BBCG_57389) delivers up to 5,000 lbs. of load-leveling capacity to eliminate rear-end sag, headlight aim misalignment, and trailer sway on modern full-hybrid trucks. Purpose-built to handle severe sub-zero winter freeze cycles, extreme payload demands, and aggressive highway road salt spray across Canadian transit routes, this heavy-duty air suspension system restores maximum chassis stability. Towing and commercial fleet specialists emphasize that supporting the added weight of hybrid battery packs while hauling heavy bumper-pull or fifth-wheel loads is critical for safe braking performance and vehicle control.

Because its fully adjustable air springs operate between 5 PSI and 100 PSI, the LoadLifter 5000™ system allows you to tune air pressure precisely based on your exact cargo load or empty bed driving preferences. Constructed with 2-ply reinforced synthetic rubber bellows and internal roll plates that protect the air springs from sharp edge impacts, this system absorbs severe road shocks and prevents bottoming out on heavy bumps. Independent chassis dynamics evaluations confirm that maintaining a level ride height under heavy tongue weights drastically reduces tire tread wear, steering wheel wander, and body roll during high-speed highway maneuvers.

Technical Specifications

Vehicle Fitment

This air helper spring suspension kit is custom-engineered explicitly for 14th-generation Ford F-150 trucks equipped with the 3.5L PowerBoost Full-Hybrid powertrain. Check your specific year and drive layout below to ensure exact fitment:

• Ford F-150 PowerBoost Hybrid (3.5L V6 Full-Hybrid; 4WD / 4x4 & 2WD / 4x2) | 2021, 2022, 2023, 2024, 2025, 2026

Strict Fitment Exclusions: This kit is NOT compatible with Ford F-150 Raptor models, F-150 Lightning EV platforms, models equipped with factory rear air suspension options, or non-hybrid gas engine models requiring different axle bracket geometry (e.g., standard 2.7L, 3.5L EcoBoost, or 5.0L V8 models using kit 57385/57384).

Installation Notes

Designed as a direct bolt-on underframe kit, this system installs without drilling any holes into the vehicle frame sheet metal. The underframe mounting design ensures complete clearance for most aftermarket and OEM in-bed fifth-wheel or gooseneck hitch brackets. Standard installation takes approximately 2 hours using basic mechanic hand tools.

Dual inflation Schrader valves can be routed to your rear bumper or fuel door area for easy air pump access, or integrated with an optional Air Lift on-board air compressor kit for on-the-go cabin control.

Frequently Asked Questions

Does increasing air pressure to 100 PSI increase my truck's maximum payload capacity?

No. The LoadLifter 5000™ kit provides up to 5,000 lbs. of load-leveling support to level your ride and improve control, but it does not increase your vehicle's factory Gross Vehicle Weight Rating (GVWR). Never exceed the manufacturer's official GVWR limits.

Is this kit compatible with in-bed gooseneck or fifth-wheel hitches?

Yes. The underframe bracket architecture of kit 57389 is designed specifically to mount cleanly alongside most popular in-bed fifth-wheel and gooseneck hitch assemblies without interference.

Can I drive with zero air pressure in the air springs when unloaded?

No. Air Lift requires maintaining a minimum of 5 PSI in the air springs at all times—even when driving empty—to prevent the synthetic rubber bellows from chafing or pinching against internal bump stops.

How does this air spring kit perform during severe sub-zero winter freeze cycles?

The 2-ply reinforced synthetic rubber bellows are engineered to maintain flexibility and air seal integrity across extreme cold temperatures, preventing cracking under heavy winter road conditions.

SKU: BBCG_57389