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Front SumoSprings are a maintenance-free suspension enhancement built to create a better journey. Handmade from micro-cellular polyurethane, they are designed to stabilize weight transfer and limit body roll while decreasing vibration, stabilizing sway, and softening harsh rebounds. 

The SSF-106-40 has a 500 lb capacity when compressed at 50%. The Blue SumoSprings shouldn’t be compressed past 70% of their original height in order to keep full memory rebound.

Please Note: SuperSprings International products are specifically designed for vehicles equipped with factory suspension. We cannot guarantee their compatibility with aftermarket products or parts. For questions about fitment on your specific vehicle, please contact us.

Robert Goodsell
2023-09-26 10:10:21

After using Timbrens for 2 years what a difference! We had the Timbrens for a couple of years and the original set was way to hard of a ride. The Microwave almost fell out of the cabinet. They sent a second set of lighter springs. Still to rough of a ride. After removing these, we went a year without any helpers. This year I decided to try the Sumo Springs. What a difference in the ride and handling. I would recommend Sumo Springs to any motorhome owner. The ride is firm but not harsh. I wish we would have installed Sumo's in the first place.

Elaine Guarino
2023-09-12 10:00:33

Fabulous products and staff.

James Davis
2023-08-29 11:35:51

Fast service. Received Sumo Springs a week earlier than I expected. Product was exactly as described. Installation was straightforward and relatively simple. The springs make a noticeable improvement in handling and stability of our van.

Scott Allen
2023-08-15 10:45:25

Wow! What a difference in roll, more stable in the wind

Michael Cogswell
2023-08-01 10:18:19

The combination of Sumo and SuperSpring have made a great difference in the ride quality. They have basically eliminated body roll and soaks up potholes and large road depressions like they weren’t even there. The van rides like floating clouds

Leonardo Vendola
2023-07-18 10:03:41

The ride is much more comfortable. Especially on the highway. When hitting pot holes at high speed the rear of the vehicle does not bounce. I also noticed that it has improved stability on winding highway.

Bruce Gustafson
2023-07-10 11:20:07

Got great tech support prior to the sale. Love the performance on my 2019 2 wheel drive 2500 MB Sprinter

Miguel Gonzalez
2023-04-25 09:09:49

The teams help to get the product before my trip was awesome. Installation was super easy. The ride difference is amazing. Did a 1,600 mile trip right after install with 11 passengers, hauling a small trailer and loaded to the ceiling. Handling and ride was awesome!

David Mackenzie
2023-04-04 09:28:52

Huge difference in driving quality between the stock bump stop and sumo springs. We went from bumpy ride and feeling every pot hole to better ride quality. Before the sumo springs every high wind areas we passed I have to slow down and manage the steering wheel continuously, After the install, it's much stable and resists cross winds immediately and consistently adjusting the vehicle position in space. Probably the best investment I put on our 2020 Airstream Interstate 19.

James Bradbury
2023-04-04 09:09:04

Easy order and install

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Customer Reviews

18 ratings for the SSF-106-40
5 out of 5

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Product Specifications

Weight 3 lbs
Dimensions 10.75 × 7.25 × 4.5 in
Application(s) Summary

Dodge Sprinter 2500 4 X 2 (2007-2009) ; Dodge Sprinter 3500 4 X 2 (2007-2009) ; Ford E-150 4 X 2 (2002-2014) ; Ford E-150 Club Wagon 4 X 2 (2003-2005) ; Ford E-150 Econoline 4 X 2 (2007-2008) ; Ford E-150 Econoline 4 X 2 (1975-2002) ; Ford E-150 Econoline Club Wagon 4 X 2 (1975-2002) ; Ford E-250 4 X 2 (2003-2014) ; Ford E-250 Econoline 4 X 2 (1975-2002) ; Ford E-250 Econoline Club Wagon 4 X 2 (1975-1991) ; Ford E-350 Club Wagon 4 X 2 (2002-2005) ; Ford E-350 Econoline 4 X 2 (1996-2000) ; Ford E-350 Econoline Club Wagon 4 X 2 (1996-2002) ; Ford E-350 Super Duty 4 X 2 (1999-2023) ; Ford E-450 Econoline Super Duty 4 X 2 (1999-2002) ; Ford E-450 Super Duty 4 X 2 (2003-2023) ; Freightliner Sprinter 2500 4 X 2 (2007-2021) ; Freightliner Sprinter 3500 4 X 2 (2007-2021) ; Mercedes-Benz Sprinter 1500 4 X 2 (2017-2023); Mercedes-Benz Sprinter 2500 4 X 2 (2010-2023) ; Mercedes-Benz Sprinter 3500 4 X 2 (2010-2023)

Spring Diameter


Spring Height



500 (lb) Capacity at 50% Compression