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  1. Vehicle Suspension
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  3. Towing/Load Leveling
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  5. Standard Duty
  6. Front Axle Suspension Enhancement
  7. Rear Axle Suspension Enhancement
Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Front or Rear Axle
SuperSprings Intl

Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Front or Rear Axle

Part Number: CSS-1145
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$206.99
Retail:$222.14
You Save: $15.15
Vehicle Suspension
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Get the cushioning power of SumoSprings for your coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support extra loads on your front or rear suspension. Great Prices for the best vehicle suspension from SuperSprings Intl. Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Front or Rear Axle part number CSS-1145 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (64)
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SuperSprings Intl Vehicle Suspension - CSS-1145

  • Towing/Load Leveling
  • Bump Stops
  • SuperSprings Intl
  • Standard Duty
  • Front Axle Suspension Enhancement
  • Rear Axle Suspension Enhancement

Get the cushioning power of SumoSprings for your coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support extra loads on your front or rear suspension.


Features:

  • Helper spring inserts increase ride comfort and enhance your coil suspension's ability to support loads
    • Inner core of microcellular polyurethane foam provides cushioning and support
  • Adjusts progressively to the weight of your load - the more you load onto your vehicle, the stiffer they become
  • Reduces body roll and helps level your truck
  • Withstands extreme temperatures
  • Durable springs resist damage caused by abrasion, oil, road salt and UV rays
  • Installs easily on front or rear suspension coils
    • Inserts between the individual coils of each coil spring
    • Custom fit for your vehicle
  • Requires no maintenance
  • Includes 2 helper springs
  • Made in the USA


Specs:

  • Application: front or rear coil spring suspensions
  • Designed to work with a suspension system that is in good working order
  • Coil SumoSprings will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's weight limit for your vehicle.
  • Limited Lifetime warranty
  • 30-Day satisfaction guarantee


Insert these helper springs in between the individual coil loops in either your front or rear coil springs to defeat driver fatigue and add better support for heavy loads. Most factory front coil suspensions have a difficult time supporting heavy front loads like winches, brush guards and snowplows. The rear coils may struggle with supporting the extra load placed on your rear axle when you're towing a trailer or using a hitch-mounted cargo carrier or bike rack. If your coil springs are totally squished under a load, the lack of shock absorption can be harsh on your backside, especially if you spend long hours sitting in your vehicle while clearing snow or driving to a campsite.


Coil SumoSpring installed between rungs of coil spring

Inside each helper spring, a core of microcellular polyurethane foam adds cushioning between your coils to make your ride more comfortable. Each doughnut-shaped spring has H-shaped channels at the top and bottom that fit to the rung of an individual coil in your front or rear coil springs. The cushioning absorbs shock, but also works progressively to better support weight, keeping your truck level.


Unlike air springs that fit inside your coil springs, these polyurethane springs require no air pressure monitoring, and they are easier to install. Say goodbye to air lines, valves and air tanks and hello to maintenance-free suspension support. Unbumpify your ride with Coil SumoSprings for coil suspensions.



CSS-1145 Coil SumoSprings Kit - Front or Rear Axle

Installation Details CSS-1145 Installation instructions



Customer Satisfaction Score:

Ratings & Reviews

4.7

64 reviews
Get the cushioning power of SumoSprings for your coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support extra loads on your front or rear suspension.

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Great product these coil are simple and quick



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Easy to install, received fast!



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Great product, fast delivery.



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Unbelievably fast shipment on a part that I really needed that was on back order everyplace else. THANK YOU SO MUCH!



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Great prices and customer service



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It has a firmer ride now that this custom helper is installed.



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Always great service with you guys. Suggestion would be the ability to add a PO to orders. We deal with the VA a lot and we use the Veterans last name for ordering.



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Work great and great price


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See what our Experts say about this SuperSprings Intl Vehicle Suspension

  • How To Prevent Sag While Towing with a 2008 Honda Ridgeline 4x4
    There might very well be a set of Coil SumoSprings Custom Helper Springs that will fit your 2008 Honda Ridgeline 4x4. However, in order to confirm the correct part number I would need you to take the measurements in the attached photo. Once you have done this I can then see if there are a set of Coil SumoSprings Custom Helper Springs available but this is your only option as no one else makes a set of suspension enhancements for this vehicle.
    view full answer...
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  • Availability of Suspension Enhancement that Fits 2014 Toyota Prius
    We have suspension enhancement that fits your 2014 Toyota Prius with the Firestone Coil Rite kit part # F4136 but we do not have any Coil SumoSprings Kits that fit your vehicle.
    view full answer...
  • Are There Coil SumoSprings Custom Helper Springs for a 2020 Honda Ridgeline
    I checked with SuperSprings and they do actually offer the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension for a 2020 Honda Ridgeline, it's part # CSS-1145 but it's only confirmed for two wheel drive models without the factory tow package. If you have a four wheel drive model and or the factory tow package then we do not have suspension enhancement options at this time.
    view full answer...
  • Comparison Between SuperSprings # CSS-1145 And # CSS-1145R
    Part # CSS-1145 and part # CSS-1145R are identical helper springs. They are designed to fit the rear only for your 2013 Dodge Durango. Originally these were designed for both the front and back and the R indicated they were to be used on the rear only. These are inserted between the coils of each coil spring on your Durango and help to reduce body roll and help keep your Durango level. As more weight is added the stiffer they become.
    view full answer...
  • Suspension Enhancement Product for 2020 Toyota Highlander
    Although the # AL60732 Air Lift air helper spring system you'd looked at isn't a fit for your vehicle, we do offer an option that would work for you. SuperSprings offers a Coil SumoSpring product for the 2020 Toyota Highlander gas engine equipped models. If your Highlander is a FWD model, use # CSS-1125 or for an AWD model, use # CSS-1145. The Coil SumoSprings are actually pretty ingenious. They install in between the coil loops in your rear coil springs to provide extra support for...
    view full answer...
    Image 1 for
  • Suspension Enhancement to Fit 2015 Mazda CX-5
    The only suspension enhancement designed to fit your 2015 Mazda CX-5 is the Coil SumoSprings Custom Helper Springs # CSS-1145 but these are for the front. While there aren't any suspension enhancement options for the back of your vehicle, we still might be able to help you with the problem you're experiencing. For example, if the end goal is a smoother towing experience then we have weight distribution and sway control systems to help out with that. If you let me know why you're wanting...
    view full answer...
  • Recommended Suspension Enhancement For A 2018 Toyota Highlander LE AWD
    You certainly can use the SumoSpring Coil Helpers # CSS-1145 on your 2018 Toyota Highlander LE AWD. They will help to beef up the factory springs and should help to minimize any sagging, and improve your ride quality while towing. This is definitely our top recommendation for enhancing the suspension on a 2018 Highlander. They are fairly easy to install. A floor jack and jack stands will be just fine to get them installed. You just have to jack it up high enough to let the wheel hang....
    view full answer...
  • Correct Number of Coil SumoSprings Custom Helper Springs Needed for 2020 Toyota Highlander
    The Coil SumoSprings Custom Helper Springs part # CSS-1145 for AWD or part # CSS-1125 for FWD will use one spacer per coil spring, you cannot use two per side nor would you want to as the ride would be too stiff but there is not enough room anyhow. These will be great for towing or hauling heavy load and they are currently the only option we have to help with rear end sag/squat.
    view full answer...
  • Are there Air Helper Springs for a 2017 Toyota Highlander 3.5 AWD?
    I spoke with my Rep at Air Lift and the air helper springs item # AL60732 are not confirmed to fit your 2017 Toyota Highlander. We do have an option for you though. SuperSprings offers a Coil SumoSpring item # CSS-1145 for the 2017 Toyota Highlander AWD model. This system installs inside your coil springs and offers support while towing or daily driving. These springs involve zero maintenance and do not require air. They can be removed easily as well. I have linked a picture and a video...
    view full answer...
    Image 1 for
  • Suspension Enhancement Recommendation for 2014 Ford Explorer FWD
    We have suspension enhancement that is a confirmed fit for your 2014 Ford Explorer like the Air Lift kit part # AL60821, but the # CSS-1145 is not a fit so we can't recommend it.
    view full answer...
  • Recommended Suspension Enhancement for 2018 Toyota Highlander
    In order to help reduce sag/squat while towing with a 2018 Toyota Highlander you'll want to use the Coil SumoSprings Custom Helper Springs part # CSS-1145. These are a confirmed fit per SuperSprings and are the only available option. They install between the coils on the coil spring and help prevent them from compressing as much with a load therefore there will be less sag/squat.
    view full answer...
  • Correct Coil SumoSprings for a 2020 Toyota Highlander
    The correct Coil SumoSprings for your 2020 Toyota Highlander include the following: Front - # CSS-1145 Rear - # CSS-1125 These are different sizes which makes sense since you're seeing different measurements between your front and rear coils. Attached are review videos for you to check out.
    view full answer...
  • What is The Difference In the SuperSprings Coil SumoSprings # CSS-1145 & # CSS-1145R?
    The Coil SumoSprings Custom Helper Springs # CSS-1145 and # CSS-1145R are exactly the same. We also have the # CSS-1145F which is the same. We created the Rear # CSS-1145R and Front # CSS-1145F specific products to eliminate confusion when looking up the products by vehicle application.
    view full answer...
  • Are There Suspension Enhancements for a 2018 Hyundai Santa Fe
    The only available suspension enhancement option we offer for a 2018 Hyundai Santa Fe is the Coil SumoSprings Custom Helper Springs, part # CSS-1145 for GLS and Limited models or part # CSS-1125 for all other sub-models. The Coil SumoSprings Custom Helper Springs do a great job of helping to reduce sag/squat while towing or hauling. They are easy to install as well with no modifications required.
    view full answer...
  • How To Reduce Strain On Rear Suspension Of 2019 Toyota Highlander Hybrid When Towing 2700lb Trailer
    I have a different option for you, but at this time there is not a rear suspension enhancement option confirmed to fit your 2019 Toyota Highlander Hybrid. Instead to help to keep your suspension from sagging I recommend adding a weight distribution hitch which redistributes the weight of the trailer from just the rear axle of your Highlander to each axle of the of the trailer and vehicle. This is helpful in keeping weight on your front axle to improve braking and turning while towing. To...
    view full answer...
  • Suspension Enhancement to Prevent Sagging While Towing With 2021 Toyota Highlander XLE
    Yes, the Coil SumoSprings Custom Helper Springs # CSS-1145 will help prevent the sag you are experiencing. These will provide additional support and use progressive load control so they get stiffer as you add more weight. The # CSS-1145 will work for the AWD model. If you have the FWD model then you can use the # CSS-1125 instead. Proper installation of the SumoSprings will not damage your vehicle or void the warranty.
    view full answer...
  • Coil SumoSprings for 2018 Subaru Forester Limited
    The # CSS-1125 Coil SumoSprings will help eliminate the sag you're experiencing when you're carrying bikes on your Forester. The # CSS-1125 are a fit for the rear coil springs on your vehicle, for the front springs, you'd use # CSS-1145. For carrying a bike rack, you honestly wouldn't need to install the SumoSprings on the front coil springs, as they wouldn't provide any benefit. As you can see by looking at the linked installation instructions, the install is very simple and should take...
    view full answer...
  • Determining The Correct Coil SumoSprings For A 2014 Ford Expedition 2WD
    Since we do not currently have a confirmed fit the easiest way to figure out which Coil SumoSprings will fit your 2014 Ford Expedition is to measure the gap between in the middle of the coil, pictured below. This will need to be done while the vehicle is on the ground with the full weight still placed on the axle. Once we have that measurement I can find the correct Coil SumoSpring for your application. For example the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension...
    view full answer...
    Image 1 for
  • Coil SumoSprings For A 2015 Volvo XC70
    Hey Jim, There isn't a confirmed to fit Coil SumoSpring for your 2015 Volvo XC70 so you'll want to lift it up by the frame to take pressure off of your rear coil springs and then measure the spacing between the coils at the middle of the spring (depicted below). Once we know this measurement I can see with kit will work.
    view full answer...

Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Jacob T
Video Edited:
Jacob T
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee Jeff D
Installed by:
Jeff D
Employee Tricia G
Written by:
Tricia G
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video by:
Joshua S
Employee Chris R
Video by:
Chris R
Employee Nicholas E
Test Fit:
Nicholas E
Employee David F
Test Fit:
David F
Employee Rachael H
Updated by:
Rachael H
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Noah M
Updated by:
Noah M

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