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 F4176 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Firestone Vehicle Suspension
- F4176
Highlights
Custom Fit for Your Vehicle: Mounts to existing attachment points
Levels Heavy Loads: Adds up to 1,000 lbs of support to stop rear sag and keep handling steady.
Better Steering and Braking: Keeps your ride level so traction and headlight aim stay consistent.
Smoother Ride Under Load: Cushions the suspension to cut bounce and prevent bottoming out.
Adjustable Air Pressure (5–35 psi): Fine-tunes support side-to-side for off-center or uneven loads.
Durable Polyurethane Springs: Elastic design flexes with the suspension for long-term stability.
Features to know about
Stay Level and Confident Under Load: Air Springs That Keep You Balanced
Hauling heavy gear or extra weight in the back can cause sag that throws off steering and braking. The Firestone Coil-Rite Air Helper Springs fit inside your existing rear coil springs to provide extra rear-end support. With a load-leveling capacity of at least 500 lbs (at most 1,000 lbs) and adjustable air pressure from 5 psi to 35 psi, you can fine-tune the support to match what you’re carrying. Keeping the vehicle level helps maintain stability, improves braking and handling, and keeps tire wear even.
Dial In the Ride You Want: Adjustable Air Pressure From 5 psi to 35 psi
Every load is different, and these Coil-Rite springs let you set your ride height and firmness to match. Add more air when carrying heavy cargo or towing, then drop down to the minimum when unloaded for a softer ride. Each side adjusts manually with individual inflation valves, so you can balance uneven loads and reduce body roll. The result is steadier handling whether you’re on the highway or on rough roads.
Tackle Rough Roads Without Bottoming Out: Durable Polyurethane Construction
Bumps, dips, and uneven pavement are no challenge for these elastic polyurethane air springs. They absorb shocks and cushion the suspension to prevent bottoming out under load. That same durable construction keeps them flexible for years of service through varying road conditions. They’re designed to work with your factory suspension to smooth out the ride and keep the axle from taking all the impact.
Simple, Complete Setup for DIY Installation
This kit includes everything needed for installation—air springs, brackets, hardware, air line, and separate valves for manual inflation. The springs mount inside your existing coil springs using your vehicle’s spring seats with no need for complex modifications. Optional switches, gauges, compressors, and air tanks (sold separately) can be added later for quick in-cab adjustments if you want even more convenience.
Specs
Weight and Capacity
Load-leveling capacity: at least 500 lbs (at most 1,000 lbs)
WARNING: This product and/or related accessories can expose you to chemicals including lead and/or lead components, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Customers Who Purchased This Vehicle Suspension Also Bought...
Parts are very good quality but installation instructions for my 14 Jetta were very poor. Had to air to 25 psi to keep air bag from shifting in spring but did help stabilize vehicle. 3584135
by:
Ivan
05/11/2026
2014
Volkswagen
Beetle
THE SERVICE IS AMAZING IHAD A SMALL ISSUE AND IT WAS HANGELED BY PAULA IMEDIATELY THANK YOU THE PRODUCT IS INSTALLED ON A 2014 VW BEETLE THERE IS A HOLE IN THE BOTTOM OF THE SPRING HOLDER SO I INSTALLED THE AIR SPRING WITH THE LINE AT THE BOTT0M AND THREADED THE LINE STRAIGHT OUT THE HOLE PRETTY SMOOTH THANKS AGAIN 3543713
by:
Jason
04/22/2026
2014
Volkswagen
Jetta SportWagen
The plugs that are used in Step 1 to keep the spring deflated for installation leak, thereby preventing installation. 3525475
by:
Josh
05/13/2022
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. 1297759
Quite the satisfied customer, I’m very pleased with etrailer. The part I ordered was out of stock, but they kept me up to date and even called me multiple times, to insure me, that when the product came in, I would be the first to know.
perfect way to keep my car stable and level with weight on the hitch, little tricky install but overall great product 3366405
by:
Good Product Great Service Difficult Installation
12/21/2019
This is a review after installation. Will comment on performance later.
Easy order, fast service. Thankfully used services of mechanic for install. i would not have made it at home.
First: used a lift, then had to remove the coil spring as the air bladder would not fit between the coil. After that it was easy to insert.
After that the rest was pretty straightforward: feed the air hose, reposition the shock and suspension and the wheels.
BIG PROBLEM: my kit came with the hose inserted in the air spring and the other end in a valve. IMPOSSIBLE TO REMOVE as directed. Left the air spring end in place and did the hose rooting with no problem.
On the valve side could not disconnect and basically broke it trying to remove.
DO NOT CONNECT HOSES BEFORE FINALIZING THE INSTALLATION.
Thankfully I contacted etrailer and they are sending a replacement valve. The mechanic will wait to finalize the install at no additional cost.
Thank you etrailer for great service, Firestone for a good product but, unless you have huge coils or are ready to dismantle the whole wheel assembly, don’t try the install alone. Leave to professionals the professional’s job.
Can’t wait to try it. Will review performance later. 733661
1 D.
12/25/2020
It works well but again, the installation instructions are sketchy at best. I had installed valve up but the coils are very long and the valve hits the top of the coil upper bumper. It went sideways and I could not inflate. Later I went to my local service center and we reversed the coils and put the valve towards the bottom. My Hyundai Tucson has a lower bumper and there is a hole in the lower suspension arm so we made a hole through the bumper and ran the tube through the suspension arm. Works great. Ran the fill valves in holes through the rear plastic bumper: easy access. Please make Firestone aware of the install info and maybe add a video on your site for your customers. BUT: eTrailer, your service and customer support people are GREATTTT. Thanks
by:
Daniel B
10/29/2013
2012
Volkswagen
Jetta SportWagen
Etrailer was fanatic there communication is great and follow thru
Install was a bit harder then other reviews say it is as far as getting the air bags inside the coil springs .I ended up taking the coil springs off the car for install not hard just time .after air bag install the rest was a peace of cake .With 35 psi in the air bags car was a lot firmer rode better and handle better then stock .Still the vw sport wagon is weak for towing tong weight .But the air bags are a must have if you tow anything or even carrie a bike rack 105672
Daniel B.
10/30/2014
Still working Great i just check the air pressure every now and then and i keep towing a three rail dirt bike trailer with three bikes on it very happy with air bags
by:
Tim F
03/09/2016
Volkswagen
Jetta
Used the Air Helper Springs on a VW Jetta to help when we put the 4 bike rack on it. Worked perfectly, kept us level when loaded and letting the air out gave us the ride when empty. Bike pump easily pumped them up when needed. I would recommend this product for anyone needing to control ride height under load or when towing to stiffen the suspension. We have had them installed for over a year. Way to go eTrailer! 240426
Tim F.
3/9/2017
Continues to work well. Would recommend without reservation
by:
JimT
11/05/2015
2013
Volkswagen
Jetta
I purchased this product on the recommendation of a service writer from my local VW dealership.
I carry a lot of tools and equipment in me Jetta Sportwagen for work.
Shipping was super quick and follow up was excellent.
I just installed the air bags yesterday with a friend. Very easy to install. One helpful suggestion, after the first attempt to stuff the deflated air bags in the spring we found it too flat and hard to get in. I suggested squeezing the top end round like an eggroll and putting a cable tie around it to hold it and then getting the remaining air out. It goes it much easier and no need to remove the bottom shock mount.
Huge difference on the ride home! Ride height back to level with 350 lbs of equipment in the back.
I highly recommend this product. 231481
Jimt
11/4/2016
A full year later and not a single problem. I havent had to add air since I set the bags up. About 11k miles of mostly city driving.
by:
Brad S
12/23/2013
2010
Volkswagen
Jetta
Easy installation; I replaced my worn shocks as well at the same time on my 2010 jetta sportwagon. Removing the shocks gives you a few more inches of room to slide in the assist bags. It was easier to slide them in after wiping the bags and spraying the coil springs with silicon. I routed the air lines through the frame and mounted the valves in the spare tire well. Much better ride especially when towing my 5x8 trailer. 110981
Shane K.
1/12/2015
Can i ask what you used as a bracket to mount in the spare tire well? Did you plug the holes you drilled with anything?
Brad S.
1/13/2015
- response for Shane K question - I did not use a bracket to mount the filler valves in spare tire well just used a drill bit slightly larger than valves and the tensioner nuts holds the filler valves in place no worries. Just be sure you mount the valves so that you can fill them when the spare is in place. I used silicon sealer around the edges so no air can get to the bare metal.
by:
Erik S.
10/11/2013
2011
Volkswagen
Jetta
I just installed these Firestone Air Bags on my 2011 Jetta Sportwagen. I did it myself and it was easy! Just remove the tire... The bag slides in without even removing the shock. I'm towing a 13' Scamp trailer, and the lift is about 2" at 30 psi... The ride and steering are greatly improved! This product actually performs as advertised! 103418
Mariano L.
3/17/2014
I will pick up a scamp 13 type 2 this May in Backus, MN using the same as your TV. I would appreciate if you can give me some type of feedback regarding your jetta performance, towing wise and MPG. I will be coming from Southern CA.I opted for an electric brakes on my and installed a curt hitch. I am in the process of installing a curt brake controller and wiring ,all purchase from e- trailer. You help me decide to install the Firestone Air Bags to my TV and I will Install it myself too. thanks to you.
by:
Ed M.
01/30/2020
A note for those who might have lowered your vehicles: For me, this made it much more difficult to install. My aftermarket lowering springs had the coils closer together, making it extremely difficult to stuff the bladder into the spring, and since they're honeycomb-shaped springs you can't just slip it in the end of the spring either. I got it in but juuuust barely.
Considering the price, I'm satisfied. I would have happily paid a few bucks more to get some higher quality hoses and fittings, but it still seems to work well. 745905
Ed M.
1/31/2021
Still working just fine a year later.
by:
David
01/21/2026
2013
Volkswagen
Jetta
Easy to install and leveled off my 2013 Jetta TDI sport wagonwhen I put extra weight and tools in the back 3480193
by:
Curtis B.
08/05/2016
The product does work, but for how long is the question. Installation was straightforward. I was very careful to make sure i had clean straight ends when i cut my tubing. After installation i filled up the air bag to half the rated PSI. Soap tested and test drove for 20mins. Filled the bags to 3/4 there rated and soap tested, test drove another 20 mins no leaks. My first trip with a trailer on the ball was 90 long and by the time i arrived one bag had leaked out where the hose pushes in. Do to space i had to cut the line to remove the bag remove the hose and then reinstall. The system does work. I'm just not a fan of quick connects. Due to the amount of work to install the bag i would like to see a more fail safe hose connection. 279882
by:
Russell
06/19/2025
The coil rite works well but they were a little harder to install than we thought. 3352676
by:
Dan C
05/28/2019
2015
Volkswagen
Jetta
These bags were installed on my 2015 TDI jetta and work very well I tow an enclosed 10ft trailer with a motorcycle in it thats about 800LBS and it gives me better control of my front wheels as they are planted on the ground much better. I would recommend these to anyone. 647557
by:
Brian
05/29/2023
2019
Volkswagen
Jetta
The kit works well, the airlines/fittings are very easy to use. The directions could have been more clear, particularly emphasizing how challenging it would be to get the airbags into the coil springs. I was sure I had the wrong size for a while, but after double checking, I found it easier to take the coil springs out of the car for easier access. In the end the install and performance are a success. 1591795
by:
Bill
06/13/2023
Hasn’t been great. I have used a different brand before and it was amazing, but this one has had nothing but small leaks that my mechanic and I can’t seem to find, even with all the soapie water in existence. So I just pump it up when I need it and it gets me the lift I need to get to the dump and back. Wouldn’t recommend. Also dealing with Firestone for warranty is practically non existent. So you are on your own. 1600461
by:
Lee Seabeck
08/27/2014
2010
Volkswagen
Sportswagen TDI
It took my auto mechanic 25 minutes to install the F4176 package in my 2010 Volkswagen Sportswagen TDI. All went smoothly and at about 10 PSI leveled the vehicle as wanted.The air bags were at a safe distance from the exhaust pipes. The mechanic is a AUDI/Volkswagen professional. 148991
by:
Micky
02/25/2021
The install for me was easy and the set up was as well. However after the install the right bag would not hold air. I have looked repeatedly for leaks and have not been able to find anything leaking. Not sure if there is a defect within the bag. As of now the bags are not being used because they do not hold air. 968455
by:
Jay
07/18/2018
The kit is easy to install and it works great! I would not tow a trailer with out it! 542994
by:
Robert
08/27/2019
Took a bit longer than I expected, but all's well that ends well. etrailer representatives extremely helpful - kept me informed as to the status of my order and reason for the delay. I would recommend to others. 697037
by:
Craig B.
01/12/2015
It was tougher than the instruction stated. At 70 yrs. old I don't have the strength to get them through the coil. Problem solved, dropped the lower "A" arm and removed the coil spring, in it went. The second one only took about 15 min. With the lift and scooter on the car no longer scrapes backing out of the driveway. (8lbs.) inflation. 168679
by:
Thomas
05/28/2025
Wish I would have installed it sooner. Huge improvement in handling and reduced tire wear. Should have taken before and after pics. Car sits prettier. 3334075
I do have ways to help with trailer sway and vehicle sag on your 2013 Volkswagen Tiguan but none of the trailer hitch receivers they have for your vehicle are compatible with a weight distribution system. Load leveling is what Volkswagen calls what we refer to as weight distribution.
A weight distribution system is never going to be required however, if the gross trailer weight (GTW) of your trailer is more than 50% of the gross vehicle weight rating (GVWR) for your vehicle, the use of... view full answer...
Hey Bill! The Replacement Air Spring for Firestone Coil-Rite Rear-Axle Kits 4167, 4168, 4176 and 4183 item # F6027 fits quite a few different air bag kits like the item # F4176. Some of these kits require a spacer.
When you install the Firestone Coil-Rite Air Helper Springs item # F4176 on a 2016 VW Golf SportWagen you do not need a spacer, which is why there isn't a set included with the kit. The spacers are typically required when the air bags are mounted with the air inlet facing down.... view full answer...
The SuperSprings Coil SumoSprings, # CSS-1125, will fit your 2015 VW Passat TDI. You are correct that the Firestone airbag kit, # F4176, will not fit the TDI models, but based on the coil spring dimensions you provided in the attached diagram, these SumoSprings will work for you and help level the rear end of your Passat with the weight of the bike rack and bikes. view full answer...
While it is not a requirement, I do highly recommend using the Firestone Air Command I - Analog Gauge with Standard-Duty Compressor # F2158 with the Firestone Coil-Rite Air Helper Springs # F4176.
The reason for that is the compressor is going to make it much simpler to inflate and keep the pressure of the air springs where you need it. The reason is, the springs come with manual inflation valves (see accompanying photo) that you need to find a place to route and install underneath the... view full answer...
To help prevent rear sag on your 2023 Kia Sportage, I would recommend adding rear axle air helper springs. For your vehicle we have The Firestone Coil-Rite Air Helper Springs # F4176 and The Air Lift 1000 Air Helper Springs for Coil Springs # AL29PD. Out of the two sets I would recommend The Firestone Coil-Rite Air Helper Springs # F4176 over The Air Lift # AL29PD because they have a better more durable construction and will last longer.
The Firestone airbags have a load-leveling capacity... view full answer...
I reached out to my tech contact at Firestone and he let me know that the Firestone Coil-Rite Air Helper Springs - Rear Axle # F4176 are a fit for the TDI models as well. There was an exception for 2007-2010 where they did not fit, but the 2011-2017 TDI models do fit. view full answer...
Yes, there is one option to upgrade your 2023 Tiguan's suspension. It is the Firestone Coil-Rite Air Helper Springs item # F4176. These fit inside your VW's rear coil springs and provide an additional 1,000 lbs of load leveling support. The air bags can be adjusted manually with the included lines and valves.
I have linked an installation video below. view full answer...
Yes, it does! I checked with Firestone and their Coil-Rite Air Helper Springs item # F4176 have been confirmed to fit all models of the 2015 VW Golf Sportwagen including the TDI's. view full answer...
The Firestone Coil-Rite # F4176 system is covered by a lifetime warranty.
Is the leak occurring at the spot where the line itself secures in the fitting, or where the fitting is installed in the air bag?
It sounds as if you're leaking where the line enters the fitting. The junction between the fitting and the air line is VERY dependent on a good fit of the line in the fitting. If the line isn't fully seated, or the cut on the end of the line isn't EXACTLY perpendicular (or perfectly... view full answer...
The air line that is included in the Firestone Coil-Rite Air Helper Kit, part # F4176, is 1/4 inch diameter.
If you wish to purchase more air line, we do carry the air line by itself, part # F99ZR. This is a 22 foot long section of red tubing.
The Tee you could use to split one line into two is the Firestone Union Tee, part # F3025-1. view full answer...
No, you will not have to remove the coil spring in order to install the Firestone Coil-Rite Air Helper Springs, # F4176. I have included a link to the installation details for you to view so that you can see what is involved for a typical installation. view full answer...
I want to start by thanking you again for ordering your hitch from etrailer.com. We truly appreciate your business.
I spoke with my contact at Firestone and if the coil springs on your 2014 Jetta Sportwagen measure just over 3-1/2 inches in diameter and 7 inches in length when the springs are bearing the weight of the vehicle, the Coil-Rite Air Helper Springs, # F4176, will work for you. These air springs fit inside your existing coil springs and help to level your vehicle, improve braking/handling,... view full answer...
Hello Troy, thanks for reaching out. I do have one potential option for you, but truth be told, there are not going to be any Coil-Rite kits that are "confirmed" to fit the springs in a 1969 AMC Rebel. Looking thru the Firestone catalogue, they only make one Coil-Rite kit for a 5" diameter spring. This would be Firestone part 6134 which is a 5" diameter 11" long type E spring. Unfortunately, this is not a kit we carry here at etrailer, so you would have to go directly thru Firestone to get one. view full answer...
According to my research the 2013 Volkswagen Beetle diesel came with either a 1.6L or a 2.0L turbo diesel. The Firestone Coil-Rite Rear Air Helper Springs Part # F4176 will not fit the turbo-equipped Beetle. However, we do offer a similar kit from Firestone that will fit the turbo-equipped 2013 Beetle, part # F4175.
This Firestone Coil-Rite kit includes all parts required for installation (with no drilling necessary) and allows for manual inflation of the air bags. If you wish, Firestone... view full answer...
The best solution for sag and poor ride quality caused by towing a trailer is weight distribution and not suspension enhancement. But the hitches for your 2012 Volkswagen Jetta Sportwagen are not rated for weight distribution. The next best ting would be suspension enhancement.
Firestone kit # F2158 can be used with Coil-Rite system # F4176 which fits your Jetta SportWagen. They will provide a better ride and decrease sag caused by carrying a heavy load. I have linked the installation... view full answer...
I spoke to my contact at Firestone and they informed me that the Firestone kit # F4176 is the custom fit suspension airbag kit for your 2010 Volkswagen Jetta SportWagen. This kit's airbag will measure 3.56 inches in diameter and 7 inches long.
The way the air bags are designed is to sit loosely in the coil spring, they will not need to touch the top and the bottom when uninflated.
I also recommend adding an onboard compressor system # F2158 so you can adjust the air pressure from inside... view full answer...
At this time there is only a Firestone air bag type of suspension setup available for your 2012 Volkswagen Jetta Sportwagen. For that you would want the part # F4176. The Firestone and Air Lift bags are both made by the same company though either way you would basically be ending up with the same components.
Your other option is the part # CSS-1145R which installs in between the coils of the springs to provide additional support. What's nice about this kit is that it does not require you... view full answer...
I spoke with my contact at Firestone and if the coil springs on your 2014 Jetta Sportwagen measure just over 3-1/2 inches in diameter and 7 inches in length when the springs are bearing the weight of the vehicle, the Coil-Rite Air Helper Springs, # F4176, will work for you.
They haven't tested this kit on your vehicle yet so they don't know for certain if it will fit, but there is a good chance it will.
These air springs fit inside your existing coil springs and help to level your vehicle,... view full answer...
Yes! The Firestone Coil-Rite rear helper springs # F4176 will fit your 2015 Volkswagen GTI. I double-checked the fit with Firestone. I have linked a video review of this system for you.
To avoid having to find an air pump I also recommend adding an onboard compressor system # F2158 so you can adjust the air pressure from inside the vehicle. view full answer...
If the carrier is hitting the ground due to suspension sag from the weight of it and the chair we do have the Firestone suspension kit part # F4176 which will give you the ability to remove the sag so that it will stop dragging. This the only solution we have that will help with the sag. view full answer...
Which spring are you using? You'll want to make sure you're using the correct spring for the vehicle. If your Beetle is a Turbo model, use # F4175 or # F4176 for non-turbo models.
When you're installing the air springs, it's very important that the car is up on jack stands being held by the frame, not by the axle or the suspension. With the rear suspension hanging free, there should be enough space between the coils of the spring to shove the air spring into the coil, after you've flattened... view full answer...
I am not sure what you mean by stabilizer bar but there are going to be three components required for you to tow your trailer if it does not have brakes or five components required if it does. I have listed these parts for you below.
Without Brakes:
Curt Trailer Hitch Receiver part # C13240
Curt T-Connector Vehicle Wiring Harness part # C56348
Curt Towing Starter Kit part # C45534
With Brakes:
7-Way RV Upgrade Kit for Trailer Brake Controller Installation part # ETBC7L
Curt Echo Mobile... view full answer...
The Firestone Coil-Rite helper springs, # F4176, are made of an elastic polyurethane and not a regular hard plastic so they can move and flex with the vehicle suspension and will last for years provided they are inflated as specified in the instructions, linked for reference, and not overloaded. view full answer...
The Firestone Coil-Rite Air Helper Spring Kit, part # F4176, is specified to fit the Volkswagen Jetta Sportwagen for model years 2009-2010, and 2012-2013. There is no fit confirmed for the 2011 model year. I spoke to a technical contact at Firestone who indicated that the manufacturer changed body styles after the 2010 year and did not complete the re-design in time for a 2011 model year to be test-fitted for this kit. It may fit but Firestone cannot confirm with certainty.
We do offer... view full answer...
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
1 D.
12/25/2020
It works well but again, the installation instructions are sketchy at best. I had installed valve up but the coils are very long and the valve hits the top of the coil upper bumper. It went sideways and I could not inflate. Later I went to my local service center and we reversed the coils and put the valve towards the bottom. My Hyundai Tucson has a lower bumper and there is a hole in the lower suspension arm so we made a hole through the bumper and ran the tube through the suspension arm. Works great. Ran the fill valves in holes through the rear plastic bumper: easy access. Please make Firestone aware of the install info and maybe add a video on your site for your customers. BUT: eTrailer, your service and customer support people are GREATTTT. Thanks