SumoSprings from SuperSprings International is the ultimate air-bag alternative built to deliver smarter suspension support for real-world loads.
Rather than relying on airlines, compressors, or constant adjustment, SumoSprings use a one-piece, closed-cell microcellular polyurethane spring that compresses progressively as weight shifts—reducing rear-end sag, improving ride height, and enhancing stability without extra maintenance.
This innovative airless helper spring provides smoother, safer handling by absorbing impact and dampening sway, giving you more confidence behind the wheel.
Crafted to endure, SumoSprings resist moisture, UV exposure, corrosion, and extreme temperatures, and are covered by a lifetime warranty.
Thanks to their microcellular polyurethane construction, they deform under load but rebound reliably, delivering consistent support mile after mile.
As a plug-and-play suspension upgrade, they install neatly where your factory bump-stop sits for an efficient install with no moving parts, leaks, or compressors.
Whether you’re hauling heavy cargo in a work van, towing an RV or trailer, or tackling off-road terrain, SumoSprings adapt automatically to weight changes—keeping your vehicle level, stable, and predictable.
These SumoSprings are specifically designed for your 2003-2024 4Runner, 1998-2007 Landcruiser 100 Series, 2010-2021 GX460 & 2007-2014 FJ Cruiser 4x4, ensuring a perfect fit and maximum reliability.
At 50% compression these springs support an additional 1400 lb of weight.
Unlike traditional airbags that require constant attention or steel helper springs that can wear out, SumoSprings offer a self-adjusting, maintenance-free suspension support solution.
If you’re looking to reduce sag, eliminate sway, and improve load stability while towing or hauling, SumoSprings provide durable, long-lasting ride control that’s truly built for the journey.
