SSR-313-54 Rear Air Helper Springs 2‑Pack Suspension Kit Flynsu

Description

Product Overview

The Flynsu SSR-313-54 rear air helper springs are engineered as a direct replacement for the OEM SumoSprings and SuperSprings found on 2014‑2023 RAM ProMaster 1500, 2500, and 3500 vans. Constructed from high‑grade reinforced rubber, each spring delivers consistent pressure to support the rear suspension, mitigating sag under load and improving ride comfort. The kit includes two identical springs, each weighing 5.06 pounds, and a set of precision‑machined mounting screws that match the original hardware specifications. Dimensions of 10.24 x 9.06 x 5.31 inches ensure a perfect fit within the factory‑designed spring pockets, eliminating the need for modifications or additional brackets. The design incorporates a patented internal bladder system that maintains air pressure stability across temperature extremes, providing reliable performance whether the vehicle is parked in a hot desert garage or a cold northern warehouse. By preserving the factory geometry of the rear axle, the springs help maintain proper wheel alignment, tire wear, and overall handling characteristics, which is essential for both commercial fleets and private owners who demand dependable performance day after day.

Usage

These rear air helper springs are ideal for a wide range of applications. Fleet operators who regularly haul cargo, tools, or equipment will notice a reduction in rear axle sag, leading to a level cargo floor and easier loading and unloading. The springs also benefit owners who use their ProMaster for passenger transport, as the added support reduces bounce and improves comfort on long highway trips. Installation is straightforward: remove the existing springs, insert the Flynsu units, and secure them with the supplied screws. No special tools beyond a standard socket set are required, making the upgrade possible in a typical service bay or even a well‑ventilated garage. The springs perform equally well in urban delivery routes, rural construction sites, and off‑road scenarios where the vehicle may encounter uneven terrain. By maintaining consistent rear suspension pressure, the springs help protect the drivetrain from shock loads, extending the life of the rear differential and axle components. Whether the van is loaded to its maximum payload capacity or operating empty, the SSR‑313‑54 springs adapt to changing weight distribution, delivering a smoother, more controlled driving experience.

Why Choose Us

Flynsu stands out in the aftermarket suspension market because of a relentless focus on material quality and rigorous testing. Each SSR‑313‑54 spring undergoes a multi‑stage durability cycle that simulates years of real‑world loading, ensuring the rubber retains its elasticity and pressure‑holding capability over the product’s lifespan. The manufacturing process includes a proprietary vulcanization technique that bonds the rubber layers at a molecular level, preventing delamination and premature wear. Our quality assurance team conducts a 100% inspection of every spring, checking for dimensional accuracy, surface integrity, and pressure consistency before the product leaves the factory. In addition, the kit is backed by a limited warranty that covers defects in material or workmanship, reflecting our confidence in the product’s longevity. Customer support is available through multiple channels, including phone, email, and live chat, with technicians trained to assist with installation guidance, troubleshooting, and post‑sale service. By choosing Flynsu, buyers receive a product that not only matches OEM specifications but often exceeds them in durability, providing peace of mind for demanding commercial applications and everyday driving alike.

Key Features

• High‑grade reinforced rubber delivers consistent rear‑suspension support under heavy loads.
• Patented internal bladder system maintains stable air pressure across temperature extremes.
• Exact OEM dimensions ensure a seamless fit without the need for modifications.
• Includes precision‑machined mounting screws for a secure, bolt‑tight installation.
• Comes with a limited warranty and dedicated after‑sales support for added confidence.

FAQ

Will these springs fit a ProMaster model from 2014 to 2023?

Yes. The SSR‑313‑54 springs are designed specifically for the 2014‑2023 RAM ProMaster 1500, 2500, and 3500 series, matching the original part numbers and mounting points.

Do I need any special tools to install the kit?

No special tools are required. A standard socket set and a torque wrench are sufficient to remove the old springs and secure the new ones with the supplied screws.

How do these springs improve ride quality?

The reinforced rubber and internal bladder keep the rear axle level when the vehicle is loaded, reducing sag and bounce. This results in a smoother, more stable ride for both cargo and passengers.

Are the springs covered by a warranty?

Flynsu provides a limited warranty that covers any defects in material or workmanship, giving you protection and confidence in the product’s durability.

Can I use these springs on a vehicle that already has air suspension?

These springs are compatible with the factory air‑suspension system of the ProMaster. They work alongside the existing components to enhance support without interfering with the vehicle’s electronic controls.