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  1. Vehicle Suspension
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  4. Rear Axle Suspension Enhancement
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Firestone Coil-Rite Air Helper Springs - Rear Axle

Firestone Coil-Rite Air Helper Springs - Rear Axle

Item # F4130
Retail:$224.75
Our Price: $153.06
You Save: $71.69
Vehicle Suspension

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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. Great Prices for the best vehicle suspension from Firestone. Firestone Coil-Rite Air Helper Springs - Rear Axle part number F4130 can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
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Firestone Vehicle Suspension - F4130

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

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.


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 1,000 lbs)
    • These springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufaturer's recommended weight limit.
  • Adjustable air pressure: 5 psi - 70 psi
  • Warranty:
    • Limited lifetime for air springs
    • 2-Year limited for hardware


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.



W237604130 Firestone Coil Rite Air Bags - Suspension Kit - Rear Axle

Firestone 4130

Installation Details F4130 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Firestone Coil-Rite Air Helper Springs - Rear Axle - F4130

Average Customer Rating:  4.5 out of 5 stars   (474 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:

Installed on my 2020 Ram 1500 4x4 ecodiesel. Took about 1 hour. Jacked up rear of vehicle to let coil spread out a little. Bags went in easy. Air lines were simple to run. Bought the union T-valve so I could air the bags up at same time and to make sure equal PSI goes to each bag.


Comments
They still working great. Only minor issue is the line that threads onto bags do come lose and cause air leakage. Recommend locktite to solve the issue.
John - 03/14/2022


by:

Works great towing my trailer. A little rougher ride without the trailer, but knew that at the start




by:

Overall great product it has performed exactly as I needed. However it is not an easy install at all. I am a very experienced mechanic and I ended up taking it to a garage that had a lift. They had to drop the rear axle down to get air bags in springs. That cost me another $200. The mechanics exact comment was " you would have never got these in without a lift". I would buy again but I would not attempt without a lift.




by:

Worked great, would recommend this product, etrailer was very helpful finding me the parts I needed




by:

They do the job.




by:
2022 Ram 1500

They look good. I have a new truck coming shortly So when I get them in I will Let you know how I like them




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Comments
They are working great! Air pressure holds constant. Provided the little extra lift I was looking for
David B - 10/14/2022


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2022 Ram 1500




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2021 Ram 1500




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2021 Ram 1500




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Review from a similar Coil-Rite in Vehicle Suspension


Installed on my '08 Acura MDX, very tight fit, it would work perfectly if air didn't leak out of the connection at the bottom of the bag.
It was a very lengthy install process for me, about 6hrs due to a stuck rear strut bolt that required drilling out. Also, needed an additional person to re-install the coil while holding down the lower control arm and squeezing the coil back into position.
The air leak is easily identified where the air line connects into the bottom of the airbag. I've re-cut the airline multiple times to ensure a perfectly flat end of the tube, and re-connected it. Even had a mechanic check the system, but there's still a slow leak at the connection into the bag.
These airbags seem very sturdy, but this is starting to make me second guess the quality, it seems like that connection is a clear weak point/design flaw.


Comments
Customer Service will reach out to you about the warranty.
-- Etrailer Expert Sierra K - 01/18/2022


by:

Review from a similar Coil-Rite in Vehicle Suspension


No issue at all with these. Keep them with at least 10-15psi at all times and lift it up to 30psi only when fully loaded or hauling. Initially, the blue fill tube seemed too long but worked out great to get it laced underneath the exhaust heat shield. Some have put the fill valves on the inside. However, I found it easier to use a standard bike pump on the exterior. And made it symetrical :)
I would had have recommended it to several others who have simular needs.




by:

Review from a similar Coil-Rite in Vehicle Suspension


They work great. First I added a levelling kit then the Firestone ride rite for when I tow my boat. Really notice the difference when towing.

With fully loaded tongue weight, rear suspension dropped .75 inches, added 10psi to the bags and brought it back up .5 inches.


Comments
Its been great one of the best additions to use when towing. I recommend it for anyone that tows or adds excessive weight in the rear.
Chris K - 11/12/2021


by:

Review from a similar Coil-Rite in Vehicle Suspension


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:

Review from a similar Coil-Rite in Vehicle Suspension


I added these to my Trailblazer ext after I lowered it 2/4. I pull a 25ft pontoon and a heavy duty equipment trailer that weighs 2500lb empty and I've never rubbed and it keeps the bounce to a minimum. Installation was easy.




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Review from a similar Coil-Rite in Vehicle Suspension


I can only give this 3 stars because one of the bags only holds air for about 1-2 days. The other bag stays filled for months. When they are both filled it gives my Pathfinder about 1" of extra lift while towing our travel trailer. So, the trip to the campground is fine but then I have to find an air pump for the trip home or tow with it lower. If they would both stay filled I would give them a 5 star rating. I contacted etrailer support and was told that I had to contact Firestone for warranty support. I have emailed (can't find a phone number on their web site) them twice with no reply.


Comments
Thanks for reaching back out about this. I have gone ahead and sent you an email with some more contact information for Firestone.
-- Etrailer Expert Brooke M - 11/01/2022


by:

Review from a similar Coil-Rite in Vehicle Suspension


Installation was easy I definitely recommend after squeezing the air out shaping them into a hot dog bun shape and they slid right in have not put them under a load yet but seem to be what was promised I did not remove the spare tire or heat shield on my 2020 gladiator not necessary




by:

Review from a similar Coil-Rite in Vehicle Suspension


Product works as advertised. Surprising held most of its pressure after a year without further inflation. Provides very good suspension assistance when trailer tongue hitched to minivan.


Comments
Air bags are still performing as expected. The additional surprise is how well they hold their pressure with time. Thanks again for a very good product.
Bill - 10/22/2022


by:

Review from a similar Coil-Rite in Vehicle Suspension


This is the worst product I have ever experienced.. both in terms of installation and use. I was very excited upon receiving the product and couldn't wait to install as my SantaFe was suffering from the rear end squat upon loading up for a trip.

Before installing I gave the product a test fit to see how it would perform and here I found the first problems. The air hose wire as well as the bags were super stiff... which I later learned was going to have a major effect on the installed product. I hooked up the L-shaped connectors to the bag and upon trying to test the system for leaks I found that I wasn't able to put any any air inside. After further investigation it appeared as though the L-shaped connector wasn't reaching the air valve to depress it to allow air to enter or exit upon tightening the connectors on the valve stem of the air bags. OK not a super big deal.. I got rid of the valves in the airbag as the only valves that really mattered were the valves on the end of the line where I would fil up the system air near the bumper.
Upon installing the system onto my car which was a process that took many hours, I quickly realized that the system wont last for too long. The who system is not stable inside the shock.. the pillow moves around as the shock experiences vibration as it travels down the road. Also the L-shaped connectors barely clear the black puck like discs and its very hard to tighten them down on to the air bag. Also on installation there isn't enough room in the cavity for the wire to come out properly to the hole that was drilled causing it to either wrap in a spiral or it creates a kink in the line causing the line to crack over time as the L-shape connector creates a 90 degree angle... I have now idea who designed it this way..why not use a straight up connector and softer air lines.
After the install the lines lasted maybe 2 weeks before the system went total flat. Upon looking at it both sides had their lines crushed and cut allowing air to escape. One side had an air leak right by the L-shaped connector (in the hose) and the other side developed a leak in the hose near where the drilled hole was the hole was too small to give the super stiff hose enough clearance to freely move as the air bag was moving up and down with the suspension spring as the car was being used. The holes were drilled to spec.

I tried fixing the system 2 times following the initial install but similar problems continued. I enlarged the holes and changed the lines to clear flexible tubbing, and tossing out the L-shaped connector. I had minor success but the tubing eventually comes loose or gets worn out. The biggest problem is that the black puck should be attached to the bottom of the suspension cavity and the air bag to it... but without being able to find the proper inline screw on cap connector I resulted to attaching the clear tubing to the treads of the air pillow with crazy glue and Teflon tape. Part of the problem is that the whole assembly air bag and black puck just kind of float in the
inside the spring of the suspension and are in constant movement up and down as the bag itself once inflated travels up and down as the spring gets compressed. It appears the air hose also serves to keep the who system in line which it does not. Eventually small leaks develop and the system gets flat. I have wasted too much time on this but I will try to fix it again this summer for the last time. Hope this helps someone out.. I have had terrible experience with this. cheers


Comments
The installation of this kit is a more involved installation. I would not recommend removing the valves in the air bags though I understand that it worked in the short term. I recommend watching the video installation that we completed on a 2015 Hyundai Santa Fe.
-- Etrailer Expert Jenny N - 03/21/2022


by:

Review from a similar Coil-Rite in Vehicle Suspension


Ordered From QC,Canada. Delivery took 13 days. Installed on my driveway in my Toyota Prius 2012. It's a 2-person job, took 1.5 hr total. Not hard to do



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474
Show More Reviews

See what our Experts say about this Firestone Vehicle Suspension

  • Does Valve Core Stay Removed for Firestone Air Bag Kit F4130 When Installed in Air Spring
    The valve core of the bag in part # F4130 gets removed once the bag is in the air spring and then once the bag is installed and in place you instead thread the fitting on the end of the air line into the bag instead of the valve core you removed.
    view full answer...
  • Is PSI Adjustable Rating of Firestone Coil-Rite Air Helper Springs Measured After Load is on Truck
    A minimum of 5 psi must be in the air bags at all times, so the rating is measured before the load is on the truck for the Coil-Rite air bags that fit your 2019 Ram 1500, which are the following part: - Firestone Coil-Rite Air Helper Springs # F4130 I have added a link below to a video review for you to check out as well if you'd like to take a look.
    view full answer...
  • Does Firestone Coil-Rite Air Helper Springs F4130 Fit A 2021 Ram 1500?
    Yes, the Firestone Coil-Rite Air Helper Springs - Rear Axle # F4130 you were looking at are confirmed to fit your 2021 Ram 1500 as long at it is not the Rebel model and the 1000lb load leveling capacity will do a great job of supporting your rear suspension when your 9000lb trailer with 800lb tongue weight is hitched. To keep from having to manually inflate the air helper springs I recommend adding the Air Command Compressor System w/ Light Duty Compressor - Wireless - Smartphone Enabled...
    view full answer...
  • Tee Union Connector For Firestone F4130 Coil Rite Air Helper Springs
    We sure do, you'll want to use the Firestone Union Tee for 1/4 inch air tubing, part # F3025-1. This fitting will allow you to inflate both of the air bags included with your # F4130 Coil-Rite kit to the same pressure at the same time using a single Schrader valve.
    view full answer...
  • Comparing SumoSprings and Firestone Air Springs for 2020 Ram 1500
    As you mentioned, there are some pretty big differences between a jounce-style spring setup like the SumoSprings # SSR-307-47 and an air bag kit like the Firestone # F4130 for your 2020 Ram 1500, both in terms of install/maintenance and actual performance. The jounce springs definitely offer the easier install and require no maintenance thereafter, while the air bags are bit more intensive to setup and would need to be adjusted based on your truck's load. If you are okay with this though...
    view full answer...
  • How To Help Prevent Sag While Towing with a 2019 Ram 1500
    In order to help prevent sag while towing with a 2019 Ram 1500 (4x4 or 4x2) you have a few options, the SumoSprings Solo Custom Helper Springs part # SSR-307-47 or the Firestone Coil-Rite Air Helper Springs part # F4130. The Coil-Rite Springs are nice because you can adjust them for varying loads whereas the SumoSprings are non-adjustable. The SumoSprings however are maintenance free whereas the Coil-Rite Springs are not. That said, the adjustability of the Coil-Rite Springs exceeds the...
    view full answer...
  • Will Hayes Genesis Brake Controller Work on a 2005 Toyota Tundra Limited
    The Hayes Genesis # HA81790 with the adapter # HA81785-HBC is exactly what you need if your 2005 Toyota Tundra has the factory 7-Way. If your Tundra doesn't have a factory 7-Way then you'll need to use the pigtail # HA81789-HBC instead of the adapter, plus you'll need to install a 4-Way # 119190KIT and the Universal Installation Kit # ETBC7. As far as the air bag suspension goes, the Firestone # F4130 are for new Ram pickups so for your Tundra you're going to need the Firestone Ride-Rite...
    view full answer...

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Info for this part was:

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Expert Research:
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Employee Jeff D
Installed by:
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Employee Daron K
Edited by:
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