Rear SumoSprings Helper Springs, SuperSprings (680 kg leaf spring), Nissan Navara 2016 - Present

SumoSprings® are progressive suspension components designed to improve load capacity, reduce body roll, and increase vehicle stability, achieving more precise control and a comfortable, safe ride . SumoSprings® are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications. Manufactured from patented microcellular urethane, they encapsulate millions of tiny air bubbles that allow progressive compression, delivering support exactly when needed and working in conjunction with the original suspension to protect the springs and reduce wear on factory components. Direct-Fit Simplicity - Mounts in your factory bump stop location with no extra hardware or fabrication. No Air, No Hassle - No airlines. No compressors. Just closed-cell foam that never leaks and never needs adjustment. Smooth, Confident Ride - Reduces sway, softens harsh bumps, and improves overall control for trucks, vans, and SUVs. Durable & All-Weather Ready - Microcellular polyurethane resists UV, corrosion, and extreme temps — backed for life. HOW IT WORKS – AIRLESS SPRING TECHNOLOGY SumoSprings use a high-tech closed-cell foam — not air — to do the heavy lifting . Each SumoSpring is made from millions of microscopic air pockets trapped in microcellular polyurethane . As loads change, these air cells compress and rebound to deliver smooth, consistent damping — without relying on airlines, valves, or compressors. That means no leaks, no adjustments, and no downtime — just plug-and-play performance. Unlike air springs, SumoSprings do not require compressors, air systems, or maintenance, and do not suffer from leaks . Their design effectively replaces airbags, helper springs, and traditional bump stops in a single robust, silent, and self-adjusting system . CHOOSING THE RIGHT SUMOSPRING . Three spring densities . One clear upgrade from air and steel. Each SumoSpring is available in multiple densities — Blue for lighter loads, Black for balanced support, and Yellow for maximum capacity. Whether you drive a van, truck, RV, or trailer, there’s a spring that fits your chassis and matches your weight class. Blue : Light-to-moderate loads, softer engagement, ideal for passenger vehicles and small campers Black : Moderate-to-heavy loads, balanced ride and control, perfect for vans, trucks, and mid-sized RVs Yellow : Maximum load support, firmest engagement, recommended for Class C motorhomes, heavy flatbeds, and severe-duty commercial trucks SMARTER THAN AIRBAGS OR METAL HELPERS . Airbags require compressors, pressure checks, and ongoing maintenance. Steel helper springs often stiffen your ride and wear out over time. Both options add complexity — and potential failure points — to your suspension. SumoSprings Solo does the job of both, with none of the hassle. Its progressive foam construction absorbs load and impact naturally, adapting to changing weight while preserving ride quality. There’s no air to leak, no parts to rust, and no adjustments to make. Just plug-and-play support that works automatically — and lasts for the long haul. BUILT FOR LOAD-CARRYING VEHICLES AND EVERYDAY DRIVING . Use Case Highlights: Pickup trucks carrying tools, gear, or small trailers. Work vans with moderate upfits or delivery payloads. SUVs and crossovers loaded with passengers or luggage. Towing setups needing extra support and less rear sag. Drivers wanting better control without harsh ride penalties.