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Timbren SES

Reduce sag, eliminate sway, and stay steady when towing and hauling with our Timbren Suspension Enhancement Systems (SES).

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Reduce sag, sway, and roll — without changing your ride

Unstable loads don’t just make for an uncomfortable ride. Difficult handling, rear squat, and corner sway create dangerous driving conditions. For you, your passengers, other drivers, your vehicle, and your equipment.

Timbren SES kits, made with our Aeon® springs, solve your towing and hauling problems.

That means no more high beams from other drivers. No more cross-wind sway. No more body roll. Just a controlled ride so smooth, you might just forget you’re towing.

All at a price point for any wallet, and an installation for any skill level.

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See our springs in action


Install right in your driveway, no special skills or tools needed. Be ready to ride and haul in less than 30 minutes.


Our Aeon® springs feature a progressive spring rate. As load increases, our rubber springs push back even harder to level your load. Our springs also act like a shock absorber. This makes for a smooth, controlled ride loaded or unloaded.


From the beating heat of the Australian Outback to the sub-freezing winters of Canada, our Timbren SES kits are built to last in any conditions. They’re durable, too. In fact, our Aeon® springs are even tougher than bullets.

We purchased a 5th wheel lite camper to be pulled by our 2019 Ram 1500. First time I towed the camper I was afraid I had made a poor decision, yet my friends told me to check out air bags or Timbrens. I decided to go with Timbrens for the ease of install, and my son and I installed them in under an hour. What a difference these make!!! 110% different ride, tow and felt confident this time out! I am telling all my truck buds these are worth their weight in gold.


Whether we’re towing with our Nissan Titan or our Toyota Tundra, our Timbren SES kit has been a game changer. Reduced all sag in the rear plus helps the tow rigs gain maximum control. Over a year with SES and we would never go back.


This is the second set of Timbren overloads I've owned. The first set was on my 1999 for F150 with an 8' 1985 American Pilgrim hard-sided camper. They worked so well and made the truck and camper rig handle so much better. They were on the truck for 17 years and never had a problem. The first set worked so well that when I upgraded to a newer truck and camper I immediately ordered a set for my new 2015 F250 SD Supercrew with a Lance 855 slide in camper. I also haul a 22' enclosed car hauler, and with this setup I don't even know the trailer is back there. I highly recommend Timbren SES for anyone that is planning to haul anything, especially a slide-in truck camper.


My review of this product is excellent like for any other vehicle listed on here; my great review is based on this company’s customer service. My product was delayed due to manufacturing issues with supply not meeting demand on this brand new model Tundra. Timbren worked hard and made new brackets at a record pace and because of the delay they overnighted the product to me, so I could have it before a long trip towing the camper. Great products are easy to find but customer service like this is rare.


A Smooth Towing & Hauling Experience

Improved Ride Quality

Stay level when loaded, without sacrificing ride comfort.

Easy Installation

Install in less than 30 minutes, no special skills or tools required.

Zero Maintenance

No need to run air lines, check pressure, or watch for leaks. With Timbren SES kits, you can set ‘em and forget ‘em.

Responsive Customer Service

What if when you rang, a real human answered the phone? Our customer service line connects you directly to a person who’s ready to help you. We also offer email and chat support.

100-Day Money Back Guarantee

If you’re not satisfied, we want to fix that. If our team can’t find a solution for you, you can return your Timbren product for a refund within the first 100 days of purchase.

Lifetime Warranty

Our Timbren SES kits are built to last. We back this up with a lifetime warranty.

Better than air, metal & foam

See how we stack up against other suspension enhancement systems.

Timbren SES

Air Bags








Rated Capacity

8,600 lbs

5,000 lbs

1,500 lbs

1,000 lbs

Best Progressive Spring Rate

DIY Install

Ride Quality


No Additional Parts Needed

Lifetime Warranty

100-Day Money Back Guarantee

Shop Timbren SES

Shop our Timbren SES kits or learn more about our SES Spacer Kits and Aeon® spring technology.

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Off-roading or overlanding? Our Active Off-Road Bumpstops keep you comfortable and in control of your vehicle over every dip, bump, and whoop.

So you can hit the trails — without taking damaging hits to your suspension.

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