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Trailer SumoSprings are a maintenance-free suspension enhancement built to create a better journey by reducing G-force in your towable by 68%.  Handmade from micro-cellular polyurethane, they are designed to remove sway, hop, & body roll while increasing overall driver control and comfort while towing.

The TSS-107-47 is designed for trailer frames with a GAWR of 5,000-8,000 lbs with the spring sitting on top of the axle tube. The Black SumoSprings shouldn’t be compressed past 65% of their original height in order to keep full memory rebound.

This product is designed to work on most trailers with the springs mounted above the axle.  The factory spring plate must not be wider than 4-1/4″.  Because of the varying build designs from different trailer manufacturers, there are occasionally some models that this product will not fit. For installation of Trailer SumoSprings the gap between the top of spring plate and bottom of the frame must be between 5.3″ and 6.55″.

John W Dodson Jr
2022-11-23 09:53:34

The ride was greatly improved with the Sumo Springs on our RV.

Darrell Suggs
2022-11-15 10:51:45

I have not installed the item yet but the parts arrived quickly after I ordered them. I will be recommending SuperSprings to my friends.

Duane Bossman
2022-11-08 15:35:52

They were fairly easy to install, between the instructions and help of other RV owners.

David Ladwig
2022-10-25 10:57:12

I had questions prior to purchasing and I got through quickly to a very knowledgeable and helpful tech. Great experience. I have not installed them yet.

2022-10-20 05:44:13

Your whole towing experience will get better instantly. I installed 2 sets of these on travel trailer and has made a huge difference. Less bounce, Less sway, better towing..

Gary Whitaker
2022-10-13 12:06:06

Great response in question and very quick with the linc for purchasing. Thanks

Claude Lym
2022-10-11 16:26:50

First the customer service was great. Secondly the installation was easy and all parts were included. We have not tested it yet. Thank you

Toby Rini
2022-10-11 16:19:55

Easy to install.

Matthew Pinson
2022-10-11 16:12:34

Improved the ride 100%

Dane Babboni
2022-10-11 15:22:15

Everything was great! Order was easy online. Shipping was on time and arrived in perfect condition. Highly recommend!

Customer Reviews

15 ratings for the TSS-107-47

5 out of 5  

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Product Specifications

Weight 13 lbs
Dimensions 13.00 × 8.00 × 5.00 in
Application(s) Summary

Trailer SumoSprings for Trailer Axle, GAWR: 5000-8500 (Spring-Over Axle Configuration)