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Firestone Coil-Rite Air Helper Springs - Front Axle

Firestone Coil-Rite Air Helper Springs - Front Axle

Item # F4102
Retail:$223.32
Our Price: $169.92
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For safety and stability, air springs are the perfect partner for your front suspension when you are pushing a plow. 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 - Front Axle part number F4102 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (628)
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  • Videos (1)
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Firestone Vehicle Suspension - F4102

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

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


Features:

  • Provide extra support for your existing front coil springs
    • Fit inside existing coil spring suspension on your vehicle
  • Keep your vehicle level when you pushing a plow or any heavy, front-mounted object
    • 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: 10 psi to 60 psi
  • Limited lifetime warranty on air springs
  • 2-Year limited warranty on hardware


Note: The construction material of the fittings may vary.


Firestone Coil-Rite Air Spring Basics

Firestone Coil-Rite springs fit inside your existing front coil springs to maximize the effectiveness of your suspension system. The added cushion provided by the air springs allows your vehicle to better handle pushing a plow or hauling a heavy, front-mounted load such as a large grille. Hauling heavy loads can make the front of your vehicle sag and the rear end rise. This puts more strain on your front axle and reduces contact between your rear tires and the road, causing problems with braking, steering control and traction. By adding air springs to your front 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 airline installation

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.


Firestone Coil-Rite air spring components

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.



W237604102 Firestone Coil Rite Air Bags - Suspension Kit - Front Axle

4102

Installation Details F4102 Installation instructions

This Product Fits The Following Vehicles




Video of Firestone Coil-Rite Air Helper Springs - Front Axle

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Firestone Coil-Rite Front Axle Air Helper Springs Review

Hi there hard workers! Today we're going to be taking a look at Firestone's line of Coil-Rite Air Helper Springs for the front axle. You want to make sure you use our fit guide, so you get the correct airbags for your vehicle. Along with your airbags, you're going to get everything you need to get them installed. This includes your airline, your manual inflation valves, and zip ties, so you can properly route all those lines. You'll also receive any grommets or bushings that are required for your particular set in your truck. On our Ram here, we had one that went in the bottom that supports the bottom of our airbag.Air Helper Springs on your front axle is going to help support front loads.

These are typically things such as a snowplow, maybe you've got a front hitch or other accessories. Our customer's got a very large aftermarket bumper on here with a winch, and he likes to do a lot of off-roading. He's big into caving. So he has to do off-road some time to get to his caves. He's got his winch there to help pull them out.

And he's got a real big fifth wheel that he also halls.So in addition to the front airbags here, we also put a set of rear airbags on to help with this fifth wheel and in the front here to help with smooth out his ride when he's off-roading, and when he's helping pull people out with his winch. These bags are designed to go inside of your coil spring to help provide that additional support. They operate between five and 35 PSI and can support loads between 500 and a 1000 pounds per set. Now this does vary slightly depending upon your truck and vehicle. You want to make sure you never exceed the hauling capacities of your particular vehicle.I've got our airbags currently set at the lowest of five PSI.

We're going to hit the test course and see how they feel while our trucks unloaded to see if it makes it really stiff. Five pounds shouldn't make too much of a difference. We're going to go into our uneven bumps section first. This is going to mimic like hitting a pothole. Our back and our side to side movement is what we're going to be feeling here and it's very smooth.

Right now, it doesn't feel like we've stiffened up the front. It kind of just feels like it does from factory right now. It doesn't really make too much of a difference. And that's what we want when we've got them all the way aired down because that's what we're really not using them. We don't want it to adversely affect our truck.Next we're going to be going over the even bump section, which is going to simulate a speed bump or going in and out of your driveway and that's our forward and backward. And when our front hits the bump here, we go over the bump. It's nice and smooth. We don't have too many oscillations. It's not harsh when we come down. So everything seems fine there.We're now going to go into our slalom section, and this is where we're going to mimic an invasive maneuver. So with the five pounds in our bags, I kind of expect it to be pretty much just like a stock truck. It's probably not going to make too much difference, but often when you add airbags, it does help out with sway a little bit. You don't get as much body roll. So we're going to go ahead and get into it now and everything feels good. This truck didn't have a lot of sway to begin with. It already had a pretty stiff suspension. So everything seems nice. Doesn't seem to have changed whole lot there. We're going to go ahead and head back to the beginning of our test course now. We're going to air the bags up to max and we're going to see how they feel different.All right, we're back at the beginning of our test course. Now we've got 35 pounds in the front bags, and we're going to hit that uneven bump section first. And you can definitely feel that they're stiffer, but it's really not as stiff as I had imagined it to be. I really thought it was going to make this thing slam into these as it hits them. It does feel stiffer. It is a little more abrupt. The truck kind of is a little more jarring when it hits, but it's not nearly as bad as I had expected it to be. And our even bump section is still quite smooth going over them. There's less oscillations up and down when we come down off the bump. When we hit the bump, it is slightly harder, but it's really not too bad.And now we're going to head up to our slalom section and see if it's stiffened up the front any to make it a little bit less body roll. And you definitely can tell that it's stiffer there in the front. There is pretty much no body roll whatsoever with it now. It is a little bit too stiff for my liking. So unless I'm actually using it to do some work and get some stuff done, I wouldn't have the bags aired up this high, but they don't feel as terrible as I thought it would. So if you need to have them aired up while you're just heading to someplace, maybe you don't have a compressor system on it, so you've got to air them up before you get there. You're not going to have too terribly of a rough ride on the way there.One of the cool things about these airbags as well is that they can be adjusted independently from one another. So if you do have some uneven loads, such as something extremely heavy, that's just up on the left front or maybe the right front, you can air up that bag slightly higher to compensate for that. You'll receive manual inflation valves with your kit. So you can air them up independently from one another. Now I don't have them installed on this particular truck because our customer didn't want to have to get out his compressor and air them up. Instead, we installed a compressor system on the truck, so that way he can do it with a remote inside the vehicle.We've got a bunch of different compressors here at etrailer.com and I highly recommend Air Lift's Wireless Air System if you're planning on doing a front and rear setup. It's a dual pass system, so you can set up the front independently from the rear, so you can adjust those sets from one another, which is nice because typically you need more pressure in the back than you do the front, especially if you're going to be hauling a fifth wheel. And I also like that compressor because it's extremely easy to install.Airbags can also help restore some lost handling and braking performance that you might have from a heavily loaded front end because this as the front is weighed down, that's going to affect your braking because the weight is not going to be transferring the way it normally would. So you can help restore some loss breaking performance by leveling your vehicle back out and returning to the proper ride height. It also affects your handling because as the front's lower down, it changes the geometry of your tires. So you're not going to have quite the same surface area on the road that you did before. This can lead to excessive tire wear, as well as that reduced handling. Lifting it back up helps restore that geometry. So you get good tire wear and you have the best handling possible when you're hauling your load.Lastly, this is something you probably don't think about too much, but when you're front's loaded down and you're driving at night, your headlights are going to be pointed down towards the road. So you're not going to be able to see nearly as far in front of you as you would before. Using your airbags to help lift the front end back up to where it was is going to give you better illumination at night, so you can get home safely.And that completes our look at Firestone's line of Coil-Rite Air Helper Springs for the front axle.


Customer Reviews

Firestone Coil-Rite Air Helper Springs - Front Axle - F4102

Average Customer Rating:  4.4 out of 5 stars   (628 Customer Reviews)

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

by:
1993 Ford Bronco

Worked out good!!Installed new coil springs as well.



by:

After installation we are towing on the level and enjoying the ride. In an effort to maintain the minimum air pressure to each Coil-Rite Helper at all times, we installed individual air supplies to each Helper. We used our onboard Horn-Blaster air compressor to supply two air pressure regulators allowing us to easily change air pressure to each individual helper as desired. Each regulator employs a check-valve to maintain pressure to the Helpers in case of a compressor failure. We have marked each pressure gauge to the minimum pressure and another mark for our desired towing pressure.



by:

The Firestone airbags are very well made and has quality feel. It was not very warm in MN when I installed them so I needed to use lubrication and a heat gun to warm the airbags from a distance so the airbags would be pliable. My gladiator has a Decked drawer system and rear steel bumper installed which caused the rear to squat more than the front. After installing these airbags and learning that I was fluent in “FRENCH” the rear of the truck was raised and squatting issues addressed. The drive was improved as well, less body roll around curves.



by:

I have purchased 3 sets of Coil-Right. The product is very good but the installation instructions were terrible. The first set (2023) I installed per video instructions and it failed. The puck that is placed at the top of the bladder fell of and caused a catastrophic failure. The bladder was punctured and was basically destroyed. The second set (2023) I installed per the video but I enlarged the hole in the puck to help is stay on top of the bladder It failed also. The third set (2024) installed per the new installation instructions which removed the bump stop at the top of the tower. So far they seem to be working better but I think eventually the puck will diappere because there is nothing to hold it inside the spring. Time will tell. This is the only product for my vehicle I can use. 2021 Toyota Sienne LE.



by:

As most have indicated fitting the bags in the springs is the hardest part. one tip I found helpful was once the bag was partially in, force the bottom of the bag with the air tube into the center of the spring then slowly let the air go back into the bag. Once it had some air in it i was able to move it around and get into place. once installed at 20 psi it raised my back end two inched. from 35" to 37" It is now level with the front of the vehicle. my vehicle is a 2015 armada platinum. Yes it has the auto leveling system. But the system wasn't functional. I've used these before in a 2010 armada platinum and it worked out great



by:

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.



by:

Great product. I must say that they were a little tough to install. A very tight fit. Fortunately for me I had the availability of a vacuum pump. With that I was able to evacuate all the air out of the bags which made them flatter, with that, it made it easier to slide them between the coil springs. I tow a small camper trailer, I usually run around 20 psi in the bags. This keeps my vehicle level and adds for a smooth ride. A great product.



by:

These things are awesome. Install was a bit tricky with actually getting them inside the spring. Defintely don’t attempt during the colder season as the material is NOT pliable. A bit of soapy water helps if the springs uncompressed still aren’t wide enough to easily work them in. They’ve held up great and provide a decent ride when the vehicle is loaded down. Minimal squat!



by:

I'll preface with I am an average do it yourselfer. I tried I stalling them on my VW Atlas for almost 3 hours before I just quit. I had to have them professionally installed. The installers said it took two of their people trying to fit the air rites in each spring. After installation they have been fine. My vehicle drops a little when I hook up boat but not a problematic amount. They hold air for quite a while and have not made any noise while traveling. They work as should. Just be prepared to pay for an install in event you cannot get them in.



by:

The bags seem too short for my 2011 Yukon. The bags increase the spring rate but don't provide any lift to level the truck out. The air hose also keeps coming out of the bottom of the bag, I'm not sure if that is also because they are too short. I've tried to keep the min 5psi in the bags when not towing but the hose just pops out and leaks the air out anyway. My best guess is the wrong part number is listed for my vehicle. Pretty disappointed overall.



by:

They provide support for my Volkswagen Atlas 2022 when towing our travel trailer. Installation wasn't' too challenging other then pushing the bags into the springs. Once I flattened them out and rolled them into a hotdog bun shape with zip ties, went in easy. I also added 90 Degree elbows to avoid kinking the hose if too tight.



by:

Installation was every bit as difficult as other reviews say. I removed the plastic covering the springs, used lubrication, and nearly gave up many times. But in the end, I got them both in place. The only problem I have had have been leaks in the hose caused by my placement. Both times I removed the punctured areas and replaced it with new hose.
As far as function, I have been very happy towing a 1900 lb trailer with my 2012 Toyota RAV4. The air help springs keep the tongue level high enough without sacrificing ride quality.
Overall, I am very happy. I wish they were easier to install!



by:

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!



by:

This system require drilling on even though this item says no drilling is required, the 2021 and newer Toyota Sienna FWD models require drilling. This is direcred in the toyota minivan specific instructions. You have to download the specific instructions for the Sienna that are linked in the description of the item.



by:

Great upgrade for carrying weight in the back or towing a trailer. They are a bit tough to install. I found twisting the bag over in the middle and inserting it between the spring to the trick. Insert the top side on the passenger bag first. Insert the bottom side first on the driver side take care with the week ass tubing because if it folds over on itself in a coil, it will remain pinched which I can see will cause problems in the future. The tubing was better 20 years ago than what they give you today. One tube replacement over $30!! Ridiculous !! I like the right height adjustability and my truck feels more stable with a load of weight in the back of my truck advertised in the video shown below.



by:

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:

Installed on 2020 VW Atlas Cross sport. Jacking up vehicle to let rear wheels hang separates the spring coils. It is not easy to get the bags inside to coils it takes strength. Also make sure the tubing is connected to the bag and threaded thru the hole in the lower control arm before setting the bottom of the bag in place. A little armor all on the spring helps too and also to remove squeak when driving while deflated.



by:

Install not bad at all!!! Just a pain to do on the ground. Best thing to do with the air bag is to compress it, zip tie so it doesn’t air back up to slide between the springs not much too to work to spin the valve attachment if it opens back up inside the spring.
Definitely helped out with my 2014 Hyundai Santa Fe sport with 175k the springs were worn out now it rides like brand new. As a 6’3” guy now I don’t have to bend down to get under the back door when it’s open like when it was new. Made me think I was getting taller while the car was getting smaller lol.
Worth the investment and time to install!!!!



by:

They keep loosing air have checked hoses quick fittings slowly seep air.



by:

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.



by:

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.



by:

These air bags for my Santa Fe work great. Little more work as we had to drop shocks and drill holes for the Air line, but that's the model of vehicle. Had an air bag leak from the fitting ( not sure if that is because of how the bag is designed or an install error but they shipped me a new air bag very quickly to replace it. Been a week now and no complaints. Make all the difference with sag when towing a boat or camper. Happy customer.



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.



by:

I had these installed in the rear of my 2023 Toyota Sienna Limited after getting it lifted with the Journeys Off-road lift kit. Installation went smoothly with no issues. Initially, there were some squeeking, but that went away after a couple of months.



by:

The installation video is not accurate for a 2008 Trailblazer. It was much more involved and required removal of the coil springs to do theinstall.


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Info for this part was:

Employee Leah B
Updated by:
Leah B
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Daron K
Updated by:
Daron K
Employee Alex H
Updated by:
Alex H
Employee Tyler C
Written by:
Tyler C
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Jonathan Y
Video by:
Jonathan Y
Employee Aidan B
Video by:
Aidan B
Employee Robert C
Installed by:
Robert C
Employee David F
Installed by:
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