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Isuzu NPR

Suspension solutions engineered to handle heavy payloads, upfits, and demanding commercial routes—keeping every NPR build level, stable, and comfortable without added maintenance or air systems.

Why Isuzu NPR Builds Need Upgrades
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Purpose-built suspension solutions for fully loaded NPR trucks, designed to improve reliability, comfort, and control across every fleet application.

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Level Under Heavy Loads

Maintain proper ride height and support for service bodies, delivery boxes, tool racks, and other upfit equipment.

Impact Protection

Progressive, microcellular springs absorb harsh bumps and prevent bottoming-out on rough or uneven roads.

Confident Handling

Reduce sway and body roll in turns, crosswinds, and lane changes, even with high or uneven payloads.

Maintenance-Free Design

Direct-fit, bolt-on kits—no air lines, compressors, or ongoing upkeep required.

Proven Isuzu NPR Upgrades for Every Application

The Isuzu NPR is built for urban deliveries, service fleets, and upfitted commercial work, but heavy loads and constant use can challenge the factory suspension. Our upgrades improve stability, handling, and ride quality while maintaining factory ride height and supporting upfits.

✅ SumoSprings® Solo – Rear progressive bump-stop replacements that provide extra load support, reduce sag, and stabilize the vehicle under heavy payloads. (Fits Isuzu NPR 2000‑2023 RWD / SSR‑603‑54)

✅ SuperSprings® SSA39 – Self-adjusting leaf spring upgrades that automatically engage under load, maintaining ride height and reducing wear on factory components. Ideal for upfitted NPR trucks with service bodies, tool racks, or heavy equipment.

✅ Coil SumoSprings® (Front/Rear Inserts) – Drop-in coil inserts that improve stability, reduce nose dive, and enhance handling on NPR models with coil front suspension.

Find the Right Kit for You

Engineered for Every NPR Configuration

Built to keep every NPR level, controlled, and fleet-ready.
Precision-engineered for the NPR’s unique suspension geometry, our kits maintain proper ride height, stability, and comfort across every setup—Standard Cab, Crew Cab, Cargo, or Cab & Chassis. From base trucks to fully upfitted commercial builds, each solution is designed for consistent performance on urban streets, highways, and challenging job sites, ensuring your fleet operates safely and efficiently. ch
Find the Right Kit for You

What Our Customers Are Saying

Made a huge difference in how the truck handles, especially during cornering and keeping the front end secure and planted. The improvement in stability is noticeable right away, whether hauling a load or just driving around town.

Everette Johnson

Ram 3500

Installation was a breeze — I did it right in my driveway with basic tools. These really made our 17-hour trip with a gooseneck trailer so much smoother and more comfortable. Even when the truck is unloaded, there’s no downside — I can’t even feel that they’re there, but I know they’re working.

Jordan Harshman

Ram 2500

Customer service was incredibly helpful in guiding me to the exact product I needed for my setup. After installing them, I noticed a big improvement in sway control without any negative impact on ride quality. The truck still drives smoothly, but now feels more stable and confident, especially with a load.

Logan Ascher

Ram 1500

Built for the Way You Use Your Isuzu NPR

From fleet operations to demanding job sites, these suspension upgrades meet the needs of every NPR build.

Service & Utility Upfits

Level, reliable support for toolboxes, service bodies, and mounted equipment.

Delivery & Courier Trucks

Consistent ride control for variable payloads and high-frequency urban routes.

Commercial Builds

Added stability for shelving, ladder racks, and specialized upfit accessories.

Extended Hauls & Fleet Routes

Improved comfort and handling for long drives, stop-and-go city traffic, and uneven road surfaces.

Level. Stable. Comfortable.

Upgrade Your NPR Today

Enhance your Isuzu NPR with bolt-on suspension upgrades engineered for load support, sway control, and consistent comfort. Whether you’re managing a fleet, upfitting a service truck, or running daily deliveries, SumoSprings® and SuperSprings® solutions deliver reliable, maintenance-free performance you can feel every mile.

Find the Right Kit for You

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