Firestone Coil-Rite Air Helper Springs - Rear Axle
Item # F4175
Retail:$180.40
Our Price: $127.02
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2018 Volkswagen Atlas
2 Wheel Drive Models
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2018 Volkswagen Atlas - Firestone Coil-Rite Air Helper Springs - Rear Axle
- 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 Volkswagen Atlas, improve braking and handling, and reduce tire wear.
Features:
- Provide extra support for your existing rear coil springs
- Fit inside existing coil spring suspension on your vehicle
- Keep your vehicle level when you are hauling a heavy load
- Improve steering control and balance
- Level your headlight beams
- Reduce tire wear
- Maintain even load distribution with air pressure, leveling off-center loads
- Air bags adjust manually, side to side, with individual inflation valves
- Enable more effective braking and handling
- Work under heavy loading and adverse road conditions
- Increase stability to promote a smoother ride and prevent bottoming out
- Made of durable, elastic polyurethane for years of comfort and stability
- Include all materials necessary for 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 quick and easy air spring inflation/deflation from inside your vehicle
- Made in the USA
Specs:
- Load-leveling capacity: at least 500 lbs (at most 1,000 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 to 35 psi
- Limited lifetime warranty on air springs
- 2-Year limited warranty on hardware
Firestone Coil-Rite Air Spring Basics
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. 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.
Adjustable Air Pressure
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
Coil-Rite springs are constructed of durable, elastic polyurethane to ensure years of service. Single replacement springs (sold separately) are available for maintenance to an existing Coil-Rite kit.
Air Spring Installation
The Coil-Rite springs install inside your existing coil springs. The custom-fit springs attach to your vehicle's spring seats.
W237604175 Firestone Coil Rite Air Bags - Suspension Kit - Rear Axle
Firestone 4175
Installation Details
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- Did not fit
- etrailer mistake
Customer Reviews
Firestone Coil-Rite Air Helper Springs - Rear Axle - F4175
Average Customer Rating: 4.4 out of 5 stars (494 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: Joe06/17/2021
Easy install in less than 2 hours. I disconnected the shock absorber on one side to get a little more room, but I was still able to slip the bags in on the side I didn't disconnect. On my atlas cross sport, there was a plastic plug at the bottom of the coil in the lower control arm that needed to be removed.
by: Jim01/26/2023
These work great for the VW Atlas!! They reduce the rear end sag when pulling a travel trailer or putting the roof tent on and loading all the gear for some overland trail riding and camping!! They are a must for any adventurous Atlas Owner!
by: Ben06/26/2021
2020 VolkswagenAtlas
Instructions were straightforward, install went smooth, and the product works great!
by: Mike C11/07/2013
2013 Volkswagen Beetle
I installed the F4175 kit on my 2013 VW Beetle TDI. Installation was very easy. I usually carry a wheel chair which lowers the rear 1 inch. My base unlaiden measurement was 9 inches. I put in 5 lbs of air and rear end went up 1 inch I then put in my wheel chair and the rear end went back down 1 inch, which put me right back to my base unlaiden measurement, so the vehicle did not sag at all and remained level. I need to do a full ride quality test, but it seems a little firmer in the rear.
by: William11/01/2018
2018 Nissan Rogue
Product installed without any issues. Do suggest taking a paper towel or rag and spraying a small amount of WD40 on it and wiping around spring coils only not on air bag. Bags slide in a little easier. Would have been 5 Star except for unacceptable shipping time, 5 days to on instate location 200 miles away.
by: Ray 01/05/2021
This product works very well! Leveled my SUV just like I was hoping when towing my Travel trailer. Install instructions are pretty simple and it is a challenging task to push the bags inside the coils, one thing I figured out after a few hours struggling is to push all of the air out then twist the bag before trying to push it into the coils.
by: Valentin08/05/2021
Good product for little air bags.i like it and easy to install
by: Michael09/28/2018
Daz Ryte... Awesome!!! Really helps out the suspension while hauling my trailer...
by: 12/19/2022
by: William 11/15/2022
by: Naran07/31/2021
2019 VolkswagenAtlas
by: Michael 03/28/2021
by: Matt Svihlik 03/25/2017
Overall great product
by: Jose05/18/2022
2019 VolkswagenAtlas
by: Joell03/05/2021
2021 VolkswagenAtlas
by: Eric 07/11/2021
2019 VolkswagenAtlas
by: Steve 02/10/2021
by: Cleotis06/13/2021
by: John03/13/2021
Review from a similar Coil-Rite in Vehicle Suspension
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 - 03/14/2022by: Murph01/17/2022
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.
-- 
Sierra K - 01/18/2022by: Josh05/13/2022
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: Jason10/21/2022
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.
-- Brooke M - 11/01/2022by: Chris K11/11/2020
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 - 11/12/2021by: Lloyd05/22/2022
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: Off2Mtns12/13/2017
Review from a similar Coil-Rite in Vehicle Suspension
Installed on a 2016 4Runner in conjunction with a 1-1/2" Daystar coil spring spacer. Since the coil spacer is hollow, I left one segment of the factory bump stop in place to compensate for and match the height of the spacer. I also added a Firestone T-fitting on the airline for a single inflation point and located the inflation valve next to my trailer plug wiring. Quite a pain to wrestle the coil back in place with the added height of the spacer, but that is no fault of the airbags; pry bar proved critical to wedge the coil back in place since I did not try the bottle jack between the frame and axle trick. After nearly a year, no leaks, bags hold air well. I put 25 psi in them for towing our travel trailer, or keep them at 10 psi for normal running around. I have also found them useful to prevent or at least reduce bottoming out the soft rear suspension that happens when off road driving with even just a couple hundred pounds in the back. Even at 25 psi they ride great and you wouldn't know they are back there at 10 psi. Highly recommend for the low cost and added versatility!
Comments
Still working great after a year. Knock on wood... no leaks to date. I would consider these essential equipment for towing, and would highly recommend for heavily loaded backcountry travels as well. I did try them near their max pressure on one trip with 5 people, roof top tent, and gear for a week of camping this summer and it was too much and felt very unsafe ped the pressure back to sub-30 psi after driving a few blocks and all was great after that!
Off2Mtns - 12/14/201825
494
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See what our Experts say about this Firestone Vehicle Suspension
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view full answer... - Deflated Dimension of Coil-Rite Air Helper Spring for 2018 VW AtlasI reached out to the manufacturer, Firestone, who said the Firestone Coil-Rite Air Helper Springs # F4175 that fit your 2018 VW Atlas have a deflated measurement of 3.56" in diameter and 8.75" long. These springs will fit right inside the coils of your Atlas and help to increase the overall handling of your vehicle when you are towing. They work to provide stability and reduce body roll to give you a more comfortable ride. The Coil-Rite Air Helper Springs # F4175 are made in the USA...
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view full answer... - Do Firestone Coil-Rite Springs Need to Fill the Whole SpringThat's a good question, but coil springs like the Firestone Coil-Rite Air Helper Springs # F4175 do not have to fill up the entire vertical space of the spring during installation. What you are seeing in regards to photos is likely the spring during the installation process with the vehicle up on a lift (like in the accompanying photo). At this time there is no weight on the suspension, the the springs are extended all the way, but when the vehicle's weight, particularly with a load,...
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Info for this part was:
Test Fit:
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Test Fit:
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Updated by:
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Expert Research:
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Video Edited:
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