RV News
Air Lift Co. Launches ProSeries Spring Kit for 2025 Toyota 4Runner

Air Lift Company announced the release of the ProSeries air spring kit for the 2025 Toyota 4Runner (all trims except Trailhunter).
Designed exclusively for professional installation, the 4Runner ProSeries air spring kit delivers up to 5,000 pounds of load-leveling support*, helping 4Runner owners maintain proper ride height, stability and control when towing or hauling heavy loads. Built on Air Lift’s proven LoadLifter platform, the ProSeries system combines double-bellow air springs with upper and lower roll plates and ultra-high-strength nylon end caps for dependable performance under demanding conditions.
The ProSeries air spring kit works in conjunction with the 4Runner’s factory suspension to reduce rear-end sag, improve steering response, correct headlight aim, and minimize body roll and bottoming out when the vehicle is fully loaded. Whether towing a trailer or carrying gear for work or adventure, the system helps restore balance and confidence behind the wheel.
As an installer-exclusive product line, ProSeries is not sold online or through retail channels, ensuring professional installation, reduced price competition, and a premium customer experience. Each kit includes clear installation instructions and a vehicle-specific design that allows for efficient installation using standard shop tools.
Backed by more than 75 years of suspension expertise, Air Lift rigorously tests its products to ensure durability and long-term reliability. Key suspension components, including air springs and hardware, are torture-tested to 1 million cycles on Air Lift’s hydraulic test rigs. The ProSeries air spring kit is supported by Air Lift’s industry-leading warranty coverage and dedicated in-house customer service team.
Key Features & Benefits:
- Adjustable Air Springs: From 5-100 PSI with up to 5,000 pounds* of leveling capacity
- Reduces Sag and Bottoming Out: Helps maintain proper ride height while towing or hauling
- Installer-Exclusive ProSeries Product: Not sold online or at retail
- Easy Installation: Bolt-on design, no drilling required
- Proven Air Lift Quality: Backed by Air Lift’s Limited Lifetime Warranty and 60-Day Ride Satisfaction Guarantee
* Do not exceed the vehicle’s gross vehicle weight rating (GVWR)



