SumoSprings Rear Helper Springs for Mercedes-Benz Sprinter 3500 4WD
The SumoSprings SSR-339-47-2 rear helper springs are a heavy-duty suspension upgrade for the Mercedes-Benz Sprinter 3500 4WD. Designed to work alongside the original rear leaf springs, they help reduce rear sag, improve load support and create a more stable and controlled driving experience.
They are an excellent choice for vehicles that regularly carry touring gear, conversion weight, equipment or other heavy loads.
Built for Better Rear Suspension Support
When the rear of the vehicle is heavily loaded, the factory suspension can lose comfort and control. These rear SumoSprings provide progressive support as the suspension compresses, helping the vehicle stay more level and composed.
They also help reduce vibration, stabilise body movement and soften harsh rebound on rougher roads or uneven surfaces.
Main benefits
Reduced rear sag
Supports the rear suspension and helps maintain better ride height under load.
Improved stability
Helps control sway and unwanted rear-end movement for a more secure feel.
Better comfort
Reduces vibration and harsh suspension feedback for a smoother drive.
Increased load support
Adds extra support to the original leaf springs when carrying heavier payloads.
Maintenance-Free Suspension Upgrade
SumoSprings are hand-made from durable microcellular polyurethane and are designed for long-term reliability. They require no air lines, no compressor and no ongoing maintenance, making them a practical fit-and-forget suspension upgrade.
Why choose SumoSprings?
100% maintenance-free
No servicing or pressure adjustment required.
Highly durable
Resistant to wear, impact and everyday damage.
Weather resistant
Designed to perform in extreme heat and cold.
Easy to fit
Straightforward installation with minimal hassle.
Capacity and Technical Specification
The SSR-339-47-2 is a heavy-duty rear helper spring designed for demanding load conditions on the Sprinter 3500 4WD.
Product details
- Product code: SSR-339-47-2
- Position: Rear
- Vehicle: Mercedes-Benz Sprinter 3500 4WD
- Model years: 2015 to 2018
- Load support: 2268 kg at 50% compression
- Maximum recommended compression: 65% of original height
To maintain full rebound memory, the black SumoSprings should not be compressed beyond 65% of their original height.
Fitment Note
For vehicles fitted with a suspension lift kit, a spacer may be required to install this product correctly.
A Heavy-Duty Upgrade for the Sprinter 3500 4WD
If your Mercedes-Benz Sprinter 3500 4WD needs stronger rear suspension support, the SumoSprings SSR-339-47-2 offer a durable and maintenance-free solution. They reduce rear sag, improve stability and help your vehicle handle heavy loads with greater comfort and control.
*Lifetime warranty subject to the manufacturer’s terms and conditions.
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