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  1. Vehicle Suspension
  2. Nissan
  3. Titan
  4. 2021
  5. Timbren
FITS 2021 Nissan Titan
Timbren Rear Suspension Enhancement System
Timbren

Timbren Rear Suspension Enhancement System

$269.36
Retail:$316.90
You Save: $47.54
Vehicle Suspension
Confirmed to Fit
2021 Nissan Titan

2 Wheel Drive

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Call etrailer.com at 1-800-940-8924 for expert service. We are your Nissan vehicle suspension experts, and offer a great price. etrailer.com carries a complete line of Timbren products for your Nissan Titan 2021. Timbren Rear Suspension Enhancement System part TTORTUN4 from Timbren can be ordered online at etrailer.com. Complete vehicle suspension installation instructions and technical support.
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2021 Nissan Titan - Timbren Rear Suspension Enhancement System

  • Towing/Load Leveling
  • Bump Stops
  • Timbren
  • Extra Heavy Duty
  • Rear Axle Suspension Enhancement

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your Nissan Titan. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.


Features:

  • Improves suspension, handling and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride
    • Allows the leaf spring ample movement while cushioning light loads
    • Becomes more rigid as more weight is added
      • Increases stability - providing great performance while hauling heavy loads
      • Reduces vehicle sag
  • Works independently - side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension


Specs:

  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 6,000 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


An example of sag on a vehicle's rear axle under a heavy load

Whether you're hauling heavy loads in your bed or cargo area or you're towing a trailer, you will often see the rear of your vehicle sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but also more of the vehicle's weight. Because less weight is on the front axle, the front tires are making less contact with the road. Overall handling - traction, steering, and braking - is negatively affected. But the resistance from Timbren's Suspension Enhancement System works with your factory suspension to keep your vehicle level and improve your driving experience.


Diagram of the Timbren spring installed

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits, 1" above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride that you are used to.


Animation of a standard Timbren rubber spring

Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape increases resistance, stiffening the suspension and keeping your vehicle level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's side or passenger's side of your vehicle. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when you are hauling off-center loads.


An example of a trailers swaying

Because the vehicle handles better with the springs, less turbulence will be passed along to the trailer, and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi), because the movement from the trailer is not transferred to your vehicle. This also works to make the sway subside more quickly.


An empty truck on a bumpy road without Timbren

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.


Timbren Suspension Enhancement Compared to the Competition

Timbren's Suspension Enhancement Systems are much easier to install than air springs - there are no air hoses to run, no compressors or gauges to hook up, and no manual adjustments to make. The rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. And more elasticity allows for a more comfortable ride because the rubber has more travel.



TORTUN4 - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Item # TTORTUN4

Installation Details TTORTUN4 Installation instructions

Customer Satisfaction Score:

Ratings & Reviews

4.7

3741 reviews
5 Stars
(2960)
4 Stars
(497)
3 Stars
(119)
2 Stars
(77)
1 Star
(88)
6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

by:



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by:

Product has performed great. I have had no problems.



by:

As advertised was easy to install. Works great.



by:

These work great and very easy to insta ll.



by:

I absolutely love them, retains factory ride.



by:

It was easy to install and they work very well



by:

Product was easy to install and works as advertised.



by:

Easy to install corrected squat when pull 5wheel



by:

Put them on The day I received them. Have not put a load on the truck yet. But, they definitely help with vehicle role around corners. Very satisfied.



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by:

Takes the sag out for a bargain, but not as good as real springs



by: 07/05/2021

did not do what I wanted it to do.



by:

These work great when hauling my race c ar.



by:

easy to install, works as expected, alot less leaning in wind



by:

Love them! Work great in taking out vibration and back end play when hauling our camper!



by:

Products were great super easy to install. Shipping took longer than expected



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by:

Excellent product. Did everything I exp ected.



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by:

Missing 2 washers hardware was lose in box



by:

Awesome easy install and great stability



by:

This product works in the background and does as advertised



by:

Fairly easy install. Timbres makes quality stuff.



by:

Only difficult part is getting the first bolt in place. Very straigt forward install.


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Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • Recommendation for Fighting Sag When Towing with a 2010 Toyota Tundra and Weight Distribution
    Weight distribution (WD) systems actually take on the weight of any cargo behind the rear axle of the tow vehicle (your 2010 Toyota Tundra) as well as the tongue weight (TW) of the loaded trailer. This is why you are finding that your WD system isn't performing as well when you load down the bed of your pickup. For example, the Equal-i-zer # EQ37100ET has a TW range of 600 lbs - 1,000 lbs. If you were using this system and the 709 lb TW of your trailer plus the cargo behind the rear axle...
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  • Recommended Timbren Rear Suspension Enhancement For A 2019 Toyota Tacoma With 4WD
    Suspension enhancement systems like Timbren springs are perfect for the scenaro you're describing. These solutions supplement your factory suspension but don't necessarily increase your capacity. Timbrens are hollow rubber springs that sit above the rear axle to help stabilize and level your Toyota Tacoma. Below are what I recommend of the available spring choices. For off road applications, I recommend the Timbren Active Off-Road Bumpstops # TABSOSR for vehicles if the axles are...
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  • Best Way to Prevent Sagging Suspension When Towing a Trailer
    For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle by distributing the tongue weight of the trailer up to the front axle of the vehicle as well. This will help greatly with handling and braking, especially in an emergency situation. The best way to pick out a weight distribution system is...
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  • Comparing Jounce-Style and Air Bag Enhancements for Off-Road Camping in a 2010 Toyota Tacoma
    Hey Paul, thanks for reaching out again! Looking into suspension enhancements can be exhausting and overwhelming, especially when you've found a solution that works for you but it seems like there is a better alternative out there. You've stumbled upon the exact dilemma that faces everyone wanting to upgrade from jounce-style to air bag enhancement and there's nothing wrong with your thinking - or with either solution. The jounce-style you currently use are designed to be more cost-effective...
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  • Recommended WD Hitch For A 2023 Airstream Basecamp 16X
    Hello Michael. So, we do not sell the Andersen WD hitch here, but it is something I am familiar with. I also just spoke with an associate of mine who has some experience using the Andersen WD hitch so I can definitely give you an honest opinion on it. What they say about it being easy to set up is true. Other than that, they really are not that great. The components seem flimsy, and it does not provide good sway control or weight distribution. I cannot say it is something I would recommend...
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  • Suspension Enhancements for a 2017 Toyota Tacoma with Firestone Airbags
    I do have a suspension enhancement option for your 2017 Toyota Tacoma that is compatible with the Firestone Ride-Rite Air Helper Springs part # F2407, however, the Timbren Rear Suspension Enhancement System part # TTORTUN4L and the Roadmaster Active Suspension Kit part # RAS4514-SAT will not work. In order to use a set of suspension enhancements with your currently installed Firestone Ride-Rite Air Helper Springs, I recommend the TorkLift StableLoad Rear Suspension Upgrade part # TLA7311...
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  • Towing Capacity Limits for a 2010 Toyota Tundra
    As long as you stay under the 10,300 pound mark you should be fine. Currently your trailer and gear estimate would weigh 9,100 pounds. Take a look at the rig when the trailer and truck are fully loaded as though you were ready to hit the road. If the Tundra is sagging in the rear, I would suggest using some sort of suspension enhancement system. They spread the load to to more springs so there is a total of 4 points on the axle that weight rides on. Timbren makes hollow rubber springs...
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  • Suspension Enhancement Recommendation for 2015 Coachmen Freelander 22 ft Class C
    Suspension enhancement would be your best option since you mentioned having an aluminum frame trailer. That we've found there isn't an aluminum frame trailer manufacturer who will state that you can use weight distribution with their trailers. They just put a different kind of stress on the trailer frame. So the best option I have would be the SuperSprings part # SSA22 which installs on the leaf spring you have now and gives you 2,200 lbs of additional suspension support.
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  • Can Andersen Ultimate Connection Part # AM3200 Be Used with 2016 Toyota Tundra
    As long as you have a set of fifth wheel rails installed in the bed of your 2016 Toyota Tundra the Andersen Ultimate Connection part # AM3200 can be installed and then attach to your fifth wheel pin box. For a set of rails confirmed as a fit for your 2016 Toyota Tundra you'd want the part # RP50084-58. This is a custom fit rail kit that would minimize drilling when compared to a universal one.
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  • How Much Space Should There Be with Timbren Active Off-Road Bumpstops On 2007 Toyota Tacoma
    The Timbren Active Off-Road Bumpstops part # TABSOSR which are a fit for a 2007 Toyota Tacoma are designed so that there is more space between the spring and frame to allow the suspension to articulate freely when off-road. If you're looking for a spring which is closer and provides support sooner you would instead want to go with the Timbren Rear Suspension Enhancement System part # TTORTUN4 which is designed to sit around 1/2" to 1-1/2" from the frame. If the truck has been lifted you...
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    Image 1 for
  • Recommended SumoSprings And Timbren Jounce Springs For A 2021 Grand Design Reflection 337RLS
    Hi Ryan, If your leaf springs sit on top of your axles then you'll need the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # SS26MV. If your leaf springs sit below the axles then you'll need the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # SS33HR. Timbren does offer a few different options for leaf spring suspensions but you won't be able to use both the SumoSprings and Timbrens because they both mount in the same spot. If your leaf springs sit on top...
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  • Recommended Suspension Enhancement For 2023 Ram 1500 4x4 Towing A 7,600lb GVWR Trailer
    Hey Greg, The pressure is all on the suspension of the tow vehicle is this case so adding in a weight distribution hitch and an enhanced jounce bumper will definitely help with distributing the load safely. The Timbrens compatible with your 2023 Ram 1500 are all rated so highly that you'd likely have a rough unloaded ride quality and would want to take them back off so I recommend going with the SumoSprings Solo Custom Helper Springs # SSR-307-40 instead. These springs have a 1,000lb...
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  • Recommended SumoSprings for a 2022 Toyota Tacoma 4WD
    For your 2022 Tacoma you are going to want the SumoSprings Solo Custom Helper Springs item # SSR-612-47. These attach directly above the leaf springs so the block between your axle and leaf spring won't affect the springs function. I have linked the instructions below along with a review video.
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  • Timbren Helper Springs for a 2006 Toyota Tundra 4x4 TRD
    I spoke with my contact at Toyota and he said that Timbren helper springs # TTORTUN4 will fit your 2006 Toyota Tundra 4x4 TRD. I have included a link to a video review and a link to the installation details for you.
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  • Timbren Rear Suspension Enhancement For a 2005 Toyota Tacoma Pre-Runner
    We do have the Timbren Rear Suspension Enhancement System # TTORTUN4 for your 2005 Toyota Tacoma Pre-Runner 2wd. This kit has a rated capacity of 6,000lbs to reduce sag and improve stability. We also have the Timbren Active Off-Road Bumpstops # TABSOSR rated for a capacity of 3,600lbs. These will provide you with more suspension travel than the kit above. So while you will see more sag out of this kit when you load your Tacoma, you will have a smoother ride when unloaded.
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  • Recommended Suspension Enhancement For 2008 Toyota Tundra SR5
    I would normally recommend using an air bag suspension enhancement for your truck but since you said you are planning on towing a fifth wheel trailer the air suspension kits we offer are not compatible with a fifth wheel hitch and I recommend going with a system like the Timbren Rear Suspension Enhancement System, part # TTORTUN4. This system not only increases your stability, it helps reduce sag as you described. Because they are independent of each other, they help stabilize your truck...
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  • Will RoadActive Suspension Enhancement Kit Fit a 2018 Toyota Tacoma
    Sorry to hear about your dissatisfaction with the Timbren # TTORTUN4 on your 2018 Toyota Tacoma. They are hollow rubber springs and can create a bumpy ride when you have a load on the truck and go over speed bumps. As for the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4514-SAT, which is the right kit for your '18 Tacoma 4WD with the axle below the leaf springs, your ride will not be as stiff as with the Timbrens. The RoadActive Suspension is really a full system which...
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  • Comparing the Timbren Suspension Enhancement to other Helper Springs Options for 2007 Tundra
    For your 2007 Toyota Tundra, I highly recommend the Timbren Rear Suspension Enhancement System part # TTORTUN4. The Timbren springs will be much more durable than the Air Lift AirCell Custom Helper Springs Kit which was discontinued. The durability will result in more support and a longer life. The Timbren have also produced much greater feedback from our customers and are currently one of the most popular suspension enhancements we carry. I have attached a review video of the Timbrens...
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  • Recommended Suspension Enhancement System For My 2019 Toyota Tundra With A 6 Inch Lift
    When installing suspension enhancement on your 2019 Toyota Tundra that a 6 inch lift The RoadActive Suspension # RAS4611TD will work for you as long as the leaf springs are stock, if not The Timbren Rear Suspension Enhancement System # TTORTUN4 will work you if you use the Spacer Kit for Timbren Suspension Enhancement System # T68MR. The Timbren System has a 6,000 pound capacity. The hollow rubber springs sit above the rear axle to help stabilize and level your Toyota Tundra. They also...
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  • Is Spacer Needed to Install Helper Springs on a 2007 Toyota Tundra with 1 Inch Lift
    If the 1 inch lift at the back of your 2007 Toyota Tundra increased the distance between the frame and the axle, also by 1 inch, then you might need a spacer kit. The shortest spacer kit for Firestone Ride-Rite air bags is 1-1/4 inches, # F2536. What I recommend is to go with Timbren springs, # TTORTUN4. Then you could add a couple of 1 inch spacers, # A25723-90AH00, which are 1 inch.
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  • Comparing Timbren and SumoSprings for The Rear Suspension of a 2021 Toyota Tundra
    The main difference when comparing Timbren and SumoSprings for suspension enhancement is going to be the weight capacities. Timbren uses hollow rubber springs that is able to support more weight but they can cause a firmer ride. The SumoSprings are made of a durable microcellular urethane that will progressively increase capacity as the spring is compressed. This will offer a smoother ride as the springs will better absorb the shock but they do not offer the capacity and stability of the...
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  • Suspension Enhancement Recommendation for 2000 Toyota Tundra that Bottoms Out
    I really like the Timbren setups like the part # TTORTUN4 that you referenced. This will replace your bump stops and provide you with 6,000 lbs more of suspension support. That means your truck isn't going to bottom out when you are loaded. I like these kits over air bags as you don't ever have to mess with inflating bags or worrying about air leaks.
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  • Suspension Enhancement Recommendation for a 2012 Toyota Tundra Crewmax with Gooseneck Hitch
    I have a suspension enhancement solution I can recommend for your 2012 Toyota Tundra but none of the air kits will fit with a gooseneck hitch. The most popular option that would work great is the Timbren part # TTORTUN4. What's great about these kits is they do not require running any air lines or maintaining air pressure so they are a great option. Basically these will provide support when needed and then when not towing your suspension would go back to normal without any adjustments required.
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  • Jounce Bumper Helper Spring Options for 2021 Toyota Tacoma
    Some 2021 Tacoma were equipped with 3 leaves in the springs, some with 4, so you'd just need to take a quick peek at what you have to determine which Timbren kit you'll need, as I have no way to look up how your truck is equipped. For a 4WD with 4 leaves in the spring pack, use # TTORTUN4, for 3 leaves use # T72FR. For 2WD vehicles with 4 leaves, use # T62FR or # T72FR for 3 leaves. This being said, the Timbren systems offer much more support than what you'd actually need to counteract...
    view full answer...


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