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Hi-Rail

Hi-Rail trucks haul heavy rail gear, hydraulics, and tools that push stock suspensions past their limits, causing sag, sway, and uneven handling. SuperSprings International solves that with maintenance-free suspension upgrades that keep Hi-Rail vehicles level, stable, and predictable — reducing wear, improving control, and delivering consistent performance on road or rail.

A Smoother Ride, Built for the Rail Industry
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All the support your Hi-Rail fleet needs — none of the maintenance it doesn’t.

control car

Enhanced Stability on Every Surface

Reduces sway and bounce between road and rail, keeping Hi-Rail trucks balanced and controlled.

Always Level, Fully Loaded

Stays level under rail gear, tools, and hydraulics for safer handling and less wear.

Zero Maintenance

No compressors or air lines — just reliable, bolt-on performance with zero downtime.

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Made in the USA

Built in the USA, backed by a lifetime warranty, and trusted by fleets nationwide.

Strength When It Counts. Stability All the Time.

SMARTER SUSPENSION FOR DUAL-MODE DUTY

Hi-Rail trucks don’t just drive — they deploy, climb, and work across two terrains. SuperSprings products are engineered to handle that load. Our progressive spring systems automatically adjust to the added weight of rail gear and upfit equipment, keeping vehicles level and composed on both road and rail.

Each system absorbs vibration and smooths harsh impacts from ballast, crossings, and track transitions — reducing sag, sway, and driver fatigue. It’s a smarter suspension solution built for the rail industry’s toughest environments, with zero maintenance and maximum uptime.

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Product Spotlight – SuperSprings Helper Springs

DEPENDABLE LOAD SUPPORT. ZERO MAINTENANCE.

PERFECT FOR HI-RAIL UPFITS AND MAINTENANCE-OF-WAY VEHICLES
SuperSprings Helper Springs automatically adjust to changing loads — providing constant support for trucks equipped with rail gear, hydraulic systems, and tool bodies. Designed for dual-mode use, they keep your vehicle level and stable whether you’re rolling down the highway or operating on the rails.

They install quickly, require no air lines or compressors, and eliminate sag, sway, and bottoming out caused by heavy upfits. The result is smoother transitions, improved driver control, and reduced long-term wear on suspension components.

Proudly made in the USA and trusted by Hi-Rail builders and rail maintenance fleets nationwide, SuperSprings deliver reliable, maintenance-free performance built for the rail industry.
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What Our Customers Are Saying

My 2017 Hyundai SF is a great SUV with the only complaint I’ve had is the rear suspension seems underside and appears to easily bottom out. I had the Coil SumoSprings installed and they made a noticeable improvement when pulling a 21′ boat.

Scott

2017 Hyundai Santa Fe

I just did a 900-mile ski trip from South Carolina to West Virginia in my 2017 Dodge Journey. With the car packed to the roof and skis on the rack, the rear Coil SumoSprings made a huge difference — cutting down sag, improving stability, and reducing body roll on curvy mountain roads. Install took some effort, but it was worth it. I’ve already ordered the front set to complete the setup.

Clarkson

2017 Dodge Journey

Bought a pair of the CSS-1195 for my 2018 Toyota Sienna XLS AWD. Very easy to install the SumoSpring for the front suspension. Noticeable improvements of the body roll reduction at the corners, which leads to better handlings and driving experience. Very satisfied with the purchase.

M. Huang

2018 Toyota Sienna XLS AWD

Engineered for Real-World Rail Work

Built to perform where road meets rail — every mile, every shift.

Rail Service & Maintenance Fleets

Support the added weight of rail gear, cranes, and tools while keeping vehicles level and predictable on any surface.

Transition Zones & Crossings

Smooth out track transitions and reduce harsh impacts that fatigue both drivers and equipment.

Upfitters & Builders

Simplify your builds with bolt-on suspension upgrades that improve ride quality and eliminate air system maintenance.

On-Road Travel

Deliver safer handling, reduced sway, and improved comfort during long-distance runs between job sites.

Find Your Fit. Keep Every Rail-Ready Truck Rolling.

READY TO UPGRADE YOUR FLEET?

SuperSprings and SumoSprings deliver the reliability, control, and load stability Hi-Rail fleets depend on — without air systems, maintenance, or downtime. Whether you’re building new service trucks or keeping existing units in operation, our suspension solutions help every vehicle stay level, responsive, and safe on and off the rails.

Bolt-on. Maintenance-free. Built in the USA. That’s suspension you can count on — shift after shift, site after site.

Find the Right Kit for You

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