Spring Under Axle Configuration Trailer Kit | Timbren SES Suspension Enhancement System
FREE Ground Shipping on Orders Over $99
Lifetime Warranty and 100-Day Money Back Guarantee
Available to ship within 1 week
Towing top-heavy loads, like your RV trailer, can impact your ability to keep the trailer moving on a straight path down the highway. This doesn’t just make for a challenging drive — it’s dangerous.
Designed exclusively for RV trailers, Timbren SES kits for trailers keep your load level at all times. This creates a safe, controlled ride so smooth, you might forget you’re towing your RV trailer altogether.
How? Our Aeon® springs deliver a progressive spring rate. As load increases, our springs push back harder, eliminating your RV trailer’s squat, sway, and roll while providing a safe, smooth ride. The natural rubber properties of our Aeon® springs also cushion road shock, reducing hard hits on your trailer from driving over bumps and dips.
This SES suspension upgrade fits your RV trailer suspension with an underslung axle setup that has a 2 ⅜-inch to 3-inch diameter axle with 2-inch wide leaf springs. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit.
What makes Timbren SES kits different from other suspension enhancement systems? Unlike air bags, our kits require zero post-installation maintenance. And unlike other systems, you can install and haul in under 30 minutes, right from your driveway.
Key Features
- Eliminates trailer squatting and sagging
- Cushions road shocks
- Improves handling
- DIY installation
- Zero post-installation maintenance
Specs
Note: Even though you’re increasing the spring rate by adding this upgrade, this does not increase the trailer’s GTW (Gross Trailer Weight). Please make sure that the load does not exceed the GTW set by the manufacturer.
What's Included
How to Install
Suspension Support Location
Kit Type
Our Timbren SES kits for trailers are built to last. We back this up with a lifetime warranty.
Covered under this warranty are defects in material and workmanship, under normal use and service for the life of the vehicle on which the kit was originally installed.
FREE Ground Shipping on Orders Over $99
Free ground shipping is available in the contiguous United States on all orders over $99. Normal processing time is between 1 – 2 business days from placing the order.
We make every effort to ship the order within this processing time; however, no guarantees are expressed or implied.
100-Day Money Back Guarantee
If you’re not happy with your Timbren product, we want to remedy that. If our customer service team can’t find a solution for you, you can return your Timbren product for a refund, a replacement product, or another product of similar value within 100 days of purchasing the product. We’ll cover return shipping costs, too.
See how we stack up against other suspension enhancement systems for trailers.
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Timbren SES for Trailers |
Foam |
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Rated Capacity |
5,000 lbs |
3,000 lbs |
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Best Progressive Spring Rate |
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DIY Install |
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Improved Ride Quality |
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Durability |
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No Additional Parts Needed |
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Lifetime Warranty |
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100-Day Money Back Guarantee |
Your questions, answered
You want all the info before choosing the right towing solution for you. And we want to help.
An underslung axle refers to the way the leaf spring sits below the axle instead of above the axle. This gives it a lower center of gravity, allowing for more stability.
Timbren SES for trailers supports the existing trailer factory suspension system in order to reduce sag, sway, and roll while improving ride quality.
Silent-Ride and Axle-Less trailer suspensions, on the other hand, completely replace the factory suspension.
Have questions? Reach out to one of our resident suspension techs to determine which product is right for your trailer needs.