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  1. Vehicle Suspension
  2. Ram
  3. 1500
  4. 2013
  5. Firestone
FITS 2013 Ram 1500
Firestone Coil-Rite Air Helper Springs - Rear Axle

Firestone Coil-Rite Air Helper Springs - Rear Axle

Retail:$235.99
Our Price: $179.56
You Save: $56.43
Vehicle Suspension
Confirmed to Fit
2013 Ram 1500

2 Wheel Drive

4 Wheel Drive

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Shipping Weight: 4 lbs
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Firestone vehicle suspension for your 2013 Ram 1500 are available from etrailer.com. Installation instructions and reviews for your Ram vehicle suspension. Expert service, and great vehicle suspension prices. etrailer.com carries a complete line of Firestone products. Order your Firestone Coil-Rite Air Helper Springs - Rear Axle part number F4185 online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (622)
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2013 Ram 1500 - Firestone Coil-Rite Air Helper Springs - Rear Axle

  • Air Springs
  • Rear Axle Suspension Enhancement
  • Light Duty
  • Firestone

For safety and stability, air springs are the perfect partner for your rear suspension when you are hauling heavy loads. Springs fit inside existing coil springs to help level your Ram 1500, improve braking and handling, and reduce tire wear.


Features:

  • Provides extra support for your existing rear coil springs
    • Springs fit inside existing coil spring suspension on your vehicle
  • Keeps your vehicle level when you are hauling heavy loads
    • Improves steering and balance
    • Levels headlight beams
    • Reduces tire wear
  • Maintains even load distribution with air pressure, leveling off-center loads
    • Air bags adjust manually, side to side, with individual inflation valves
  • Allows for more effective braking and handling
    • Works under heavy loading and adverse road conditions
  • Increases stability to create a smoother ride and prevent bottoming out
  • Constructed of durable, elastic polyurethane
  • Includes all materials necessary for no-drill installation
    • Brackets, air springs, hardware, air line, and separate valves for manual inflation
    • Switches and gauges, compressors, and air tanks (sold separately) are available for quicker and easier air spring inflation or deflation from inside your vehicle
  • Made in the USA


Specs:

  • Load-leveling capacity: at least 500 lbs (at most 2,000 lbs)
    • Coil-Rite springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.
  • Adjustable air pressure: 5 psi - 70 psi
  • Warranty:
    • Limited lifetime for air springs
    • 2-Year limited for hardware


Note: The construction material of the fittings may vary.


Firestone Coil-Rite Air Spring Basics

Hauling heavy loads or towing a heavy trailer can make the rear of your vehicle sag and the front end rise. This puts more strain on your rear axle and reduces contact between your front tires and the road, causing problems with braking, steering control, and traction. By adding air springs to your rear suspension, you can help to level your vehicle for more effective braking and handling under heavy loading or when you encounter adverse road conditions. The air springs also help to level your headlight beams and reduce wear on your tires. Firestone Coil-Rite springs fit inside your existing rear coil springs to maximize the effectiveness of your suspension system. The added cushion provided by the air springs allows your vehicle to better handle a heavy load or trailer.


Adjustable Air Pressure

Firestone Coil-Rite airline installation

The air pressure in your Coil-Rite springs can be adjusted manually, side to side, to compensate for off-center loads. A centered load improves the stability of your vehicle by reducing body roll. The air springs will also help to absorb road shock and soften contact between your axle and frame. This prevents bottoming out, thus improving ride comfort. Route the air line tubing for the springs to your vehicle's bumper to provide easy access to the manual inflation valves.


Air Spring Construction

Firestone Coil-Rite air spring components

Coil-Rite springs are constructed of durable, elastic polyurethane to ensure years of service.


Air Spring Installation

The Coil-Rite springs install inside your existing coil springs. The custom-fit springs attach to your vehicle's spring seats - no drilling required.



W237604185 Firestone Coil Rite Air Bags - Suspension Kit - Rear Kit

4185

Replaces Firestone 4190

Item # F4185

Installation Details F4185 Installation instructions

Customer Satisfaction Score:


Customer Reviews

Firestone Coil-Rite Air Helper Springs - Rear Axle - F4185

Average Customer Rating:  4.4 out of 5 stars   (622 Customer Reviews)

For safety and stability, air springs are the perfect partner for your rear suspension when you are hauling heavy loads. Springs fit inside existing coil springs to help level your vehicle, improve braking and handling, and reduce tire wear.

by:

It performed as expected. I can hookup my boat and maintain my truck at the height that it was prior to hookup therefore keeping the headlights at the correct angle. I would have given it a 5, but it would not install through the coil springs. I had to remove them.



by:

They functioned exactly as advertised. Very strong and durable. So strong are they that they didn’t even burst or puncture in a roll over crash. One of the spring that contained a spring assist bag was knocked out of the truck and it still did not rupture.
In the pictures below you can see the spring in the bed of the truck.
Highly recommend this product.



by:
Dodge Ram Pickup

Ended up have to drop the rear axle to get the bags in. After that though, I couldn’t be happier with my purchase. From time to time I pull a dump trailer loaded with dirt or stone and my Ram 1500 barely squats and handles it well. We also pull a 32 foot travel trailer like it’s not even there.



by:

Just install my whole kit no problems at all. Everything went rite on very easy. Two hours start to finish. Haven't tried towing yet, if it tows as good as it all fit I'm happy



by:
Dodge Ram Pickup

Bags worked well on my Ram 1500. Small town shop depressed springs done in a hour. Cost $300.



by:

Once I figured out I had a bad air line things where a lot better (etrailer took care of me as usual). These work great leveled out my truck and helped my trailer dramatically.

Bri

9/13/2021

Still going strong and doing its job. I would definitely recommend and buy again.



by:

does what I needed it to do when I pull to box trailer or the camping trailer.



by:

My Coil-Rite helper springs are still working well after towing our Airstream more than 20,000 miles. I use them at 25-30 PSI to provide a little extra spring when towing with a load distributing hitch. The helper springs are most noticeable on roads with dips and heaves where the faster spring rate prevents porpoising.

I reduce pressure to about 5-7 PSI when we don't tow for a week or more. I manage the air pressure manually, which is easy with the valves clamped beneath the rear bumper.



by:

On the first go-around, one bag had a l eak!

Etrailer Expert

Jenny N.

11/11/2021

I will have our customer service team reach out to you. The air bags do have limited lifetime warranty.

Harry

11/11/2022

Good so far!



by:

Very good material and quality. But video showed you could just compress bag and squeeze it between truck spring. That was impossible to do. I had to put truck on lift and take springs off to install them. I think they will serve me fine.



by:
Dodge Ram Pickup

I just installed the Firestone air bags on my 2020 Ram 1500. Fortunately I was able to have a hoist to make installing much easier. It only took a little over an hour start to finish. The only thing I feel should be put in the instructions is after taking the Schrader valve out to let the bags fill back up, it should state to not put the Schrader valve back in. I put the valve back in and wasn't able to adjust air pressure. I took the valve out and it works great. Can't wait for camping season now.



by:

The customer service was excellent the product arrived quickly and was exactly as advertised, I would definitely recommend e trailer to anyone and I will use them in the future.



by:
Dodge Ram Pickup

Easy install, worked perfect for when I haul heavy weight in the back of my Ram. These do the job without breaking the bank. Would buy again.



by:

Great for a small trailer/camper.

Jason W.

1/13/2014

How big of a trailer are you towing with your Ram and did this kit help?

Charles

1/23/2014

The kit was okay for one trip. The lines keep coming off then I lose air. I have had to fix the lines four times now I gave up, dont know if there is a real fix to this.My trailer is 18 feet.Any help would be appreciated.Thank you.

Etrailer Expert

Patrick B.

2/4/2014

The lines need to be cut very cleanly and perfectly square. If there a little crooked or rough, the fittings cannot seal to the line. If you are using a knife or box-cutter or side-cutters to cut the line, your fix may simply be a proper line cutting tool like part # AL10530. Make sure when you push the line into the fitting, that you push it all the way in until it bottoms out.


by:
2017 Ram1500

Wasn’t real hard to put on. Still took me 2 1/2 hours if I had a lift would have taken a considerable amount of less time. Seem to be working well haven’t towed my travel trailer yet but I’m sure they will help tremendously.



by:

Great experience have awesome results from equipment I ordered thanks again



by:

Great customer service when I called in and fast delivery. Etrailer seems to be on point as I have ordered a couple items from them the past few months and have been happy with them.



by:

Little time consuming to install but pretty simple



by:

Harry

10/21/2022

The Firestone airbags have been working quite well since they were installed, and have performed as expected. You just have to get used to monitoring the air pressure once or twice a week as there are minor air leaks that you have to contend with.



by:

Sorry, no picture as it is on the pick up truck and working fine.



by:

Like the product and the promptness in which it arrived.



by:



by:

Great product, price, service!



by:



by:
2012 Ram1500


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  • Recommendation For Improving Ride Quality and Safety On 2020 Ram 1500 Classic Towing 30' Coleman TT
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Info for this part was:

Employee Leah B
Updated by:
Leah B
Employee Mary K
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Employee Wilson B
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Wilson B
Employee Daron K
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Employee Anna W
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Anna W
Employee Alex H
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Alex H
Employee Noah M
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Employee Tyler C
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Employee Jeff D
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Employee Robert C
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Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
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