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  1. Vehicle Suspension
  2. Firestone
  3. Air Springs
  4. Towing/Load Leveling
  5. Light Duty
  6. Rear Axle Suspension Enhancement
THIS ITEM IS NOT A FIT FOR
2016 Keystone Alpine Fifth Wheel
Firestone

Firestone Coil-Rite Air Helper Springs - Rear Axle

Part Number: F4175
In Stock
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$151.33
Retail:$198.89
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Vehicle Suspension
Not Confirmed to Fit

2016 Keystone Alpine Fifth Wheel

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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 F4175 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Firestone Vehicle Suspension - F4175

  • Air Springs
  • Towing/Load Leveling
  • Firestone
  • Light Duty
  • Rear Axle Suspension Enhancement
  • Suspension Only

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:

  • 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


Note: The construction material of the fittings may vary.


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.


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.



W237604175 Firestone Coil Rite Air Bags - Suspension Kit - Rear Axle

4175

Installation Details F4175 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.4

709 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.

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See what our Experts say about this Firestone Vehicle Suspension

  • Where Should Coil-Rite Air Valve be Installed on a 2019 VW Atlas?
    Hey David! The supports that come with the Firestone Coil-Rite Air Helper Springs # F4175 aren't going to be used for your 2019 Volkswagen Atlas. This kit fits a handful of vehicles, so the instructions say to put the air valve at either the top or bottom depending on what will be best to keep the air valve from getting damaged. Does this help you out at all?
    view full answer...
  • Complete Rear Suspension Air Spring Kit With Compressor For 2020 Volkswagen Atlas
    Yes, the Firestone Coil-Rite Air Helper Springs - Rear Axle # F4175 is confirmed to fit all models of the 2020 Volkswagen Atlas. This air spring kit comes with everything necessary for installation and use. When hauling a heavy load, these springs will reduce rear vehicle sag, improve steering and balance, and even reduce tire wear. It is rated at 500lbs, but make sure to never exceed the weight capacity of your vehicle. While this kit does come with everything you need to install and...
    view full answer...
  • Best Coil Helper Springs For 2021 Nissan Rogue Front Wheel Drive
    Hey Albert, thanks for reaching out. The Firestone Coil-Rite Air Helper Springs # F4175 are what I recommend for your 2021 Nissan Rogue front wheel drive. These will fit any model with rear coil springs, so the front wheel drive will not be an issue. They will fit two wheel drive or four wheel drive models, so as long as your Rogue has rear coils you will be good. I have included a link to an install video for you below. Feel free to reach out with any questions.
    view full answer...
  • Do Firestone Coil-Rite Springs Need to Fill the Whole Spring
    That'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,...
    view full answer...
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  • Recommendation For Preventing Rear Suspension Sag When Towing With 2020 Volkswagen Atlas W/ Tow PKG
    I do have an option to help prevent sag in your rear suspension when towing your trailer that does not include a weight distribution system for your 2021 Volkswagen Atlas. The option I recommend is adding the Firestone Coil-Rite Air Helper Springs # F4175 which install inside of your rear coil springs and allow you to air them up with up to 35 PSI of air to help support your rear suspension when the weight of your trailer is attached and can be aired down to 5 PSI when not towing to keep...
    view full answer...
  • Sway Control For 2022 VW Atlas That Cant Use Weight Distribution
    While there isn't a way to completely mimic how a weight distribution hitch works, you can use a friction sway control system for a safer way to tow with your 2022 VW Atlas, and you'll also need a bracket that goes over your ball mount: - Reese Friction Sway Control Kit # 83660 - Reese Sway-Control Bracket for 2" Ball Mounts # RP26003 Then to help with any suspension sag, what you can do is add air springs to the coils, the Firestone Coil-Rite Air Helper Springs # F4175.
    view full answer...
  • Can I Install Air Helper Springs at Home on My 2018 Volkswagen Atlas
    The Firestone Coil-Rite Air Helper Springs # F4175 will work great on your 2018 Volkswagen Atlas. This kit can and has been installed by many people at home. It helps if you can get your hands on a set of car ramps to get the rear of the vehicle in the air a bit to give you more room to work but other than that the installation is very straight forward. I also recommend picking up a T-Fitting # F3025-1 so that it make inflating and deflating the air bags much easier.
    view full answer...
  • Will the Firestone Coil-Rite Air Helper Springs Work W/ a 2022 Volkswagen Atlas
    Yes, the Firestone Coil-Rite Air Helper Springs # F4175 will work great with your 2022 Volkswagen Atlas.
    view full answer...
  • Sway Control Options Without Use of Weight Distribution System
    You hit the nail right on the head for the best option for sway control that does not require the use of a weight distribution system, which is an electronic sway control, the Tuson Asymmetric Sway Control # 335TSC-1000. This is going to do the job of helping control sway on your 2019 VW Atlas wonderfully by itself, and there isn't going to be anything else needed. The Sway Command is easy to set up and is going to counteract trailer sway by lightly tapping the trailer brakes to ensure...
    view full answer...
  • Can a Weight Distribution Hitch Be Used On a 2018 VW Atlas
    If the owner's manual states a weight distribution system cannot be used then we cannot recommend using one. That said, we do still have options that can take ones place such as the Firestone Coil-Rite Air Helper Springs part # F4175 which like a weight distribution system will transfer the weight from the rear of the car to the front. If the trailer has brakes you can use the Tuson Asymmetric Sway Control part # 335TSC-1000 for sway control but this is about your only option for sway and...
    view full answer...
  • Is There a Set Of Air Bag Helper Springs Confirmed To Fit a 2024 VW Atlas Cross Sport SEL Premium R?
    I may be able to help you determine a rear suspension enhancement kit for your 2024 Volkswagen Atlas Cross Sport SEL Premium R Line as there currently is not a system confirmed to fit. This includes the Firestone Ride-Rite # F4175 air bag helper springs you found which are confirmed to fit the larger Atlas. I will need for you to send me a picture of your rear suspension with the springs as well as measurements for the inside diameter of the springs, height of the springs at ride height....
    view full answer...
  • Is There a Way to Allow Both Firestone Coil Rite Bags to Inflate at Same Time
    Yes, if you want to use a union tee like the # F3025-1 you can easily inflate both bags of the Firestone kit part # F4175 equally with the same inflation valve. Unless for some reason you need ability to have one bag with more pressure than other this is the way to go for sure.
    view full answer...
  • Max Air Pressure for the Firestone Coil Rite Air Helper Springs
    The Firestone Coil-Rite Air Helper Springs # F4175 can be adjusted to a maximum of 35 PSI.
    view full answer...
  • Firestone Air Bag Fitment on 2018 Volkswagen Atlas Rear Coil Springs
    With the Firestone Coil-Rite Air Helper Springs # F4175 installed on your 2018 Volkswagen Atlas there may be some vertical play left and will depend on how far the spring is compressed. The air bags are designed to fit the width inside the spring. When Inflated the bag will push into the coils and that is how they provide the additional support.
    view full answer...
  • Recommended Trailer Hitch And Wiring To Tow A Trailer With A 2022 VW Atlas
    We definitely have what you need to get your 2022 Volkswagen Atlas all set up to tow a small trailer. There will be a couple more things needed than just a hitch and wiring, but not many. With that said, let's get into it. First thing's first, the hitch. For this we have the American made Curt # C24ER. There is some fascia trimming required for the installation, but no drilling, so it is a pretty straight forward install. This is also rated up to 6,000 pounds towing and 900 pounds of tongue...
    view full answer...
  • Recommended Trailer Hitch Receiver For 2021 Volkswagen Atlas
    The Curt Trailer Hitch Receiver # C93CR you were looking at is confirmed to fit your 2021 Volkswagen Atlas as long as it is the Cross Sport model. To tow your trailer with a 2-5/16" coupler you will need a ball mount and a 2-5/16" hitch ball. To find the correct ball mount you will want to measure from the ground to the top inside edge of the trailer hitch receiver, and then from the ground to the bottom of the coupler on your trailer. The difference between these measurements is the drop...
    view full answer...
  • Are Replacement Air Bags Available For Firestone F4175 Kit?
    I reached out to Firestone and the air bags used in the # F4175 are not available by themselves. To replace them you'll need an entire new kit # F4175. The most common reason your bags would both rip or pop is due to under inflation. They need to have a minimum of 5 PSI air pressure at all times, so it's recommended to double check the air pressure every month. A 10 degree change in weather can change the PSI in the air bags by 1 PSI so if you're really keeping them at 5 PSI I'd be checking...
    view full answer...
  • Deflated Dimension of Coil-Rite Air Helper Spring for 2018 VW Atlas
    I 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...
    view full answer...
  • Suspension Enhancement Options Available for a 2019 VW Atlas
    I spoke to Air Lift and, unfortunately, they did not recommend using the # AL61730 on your 2019 VW Atlas. They stated that they do not have anything that will work with a VW Atlas as of yet. I contacted Firestone as well and had better luck, however. The Firestone Coil-Rite Air Helper Springs # F4175 can fit the VW Atlas from 2018 to 2021. Though we do not have an install video of these on an Atlas as of yet, I did include one we did on a 2017 Nissan Rogue. The install will be much the...
    view full answer...
  • Will Firestone Coil-Rite Rear Air Helper Springs Part # F4176 Fit 2013 Volkswagen Beetle Diesel
    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...
  • Helper Springs for a 2010 Volkswagen TDI
    The problem on the TDI models of the 2010 Volkswagen Jetta is that apparently the chassis is slightly different than regular gas models in terms of mounting the air bags so TDI models are excluded. There are components related to the diesel motor that interfere with the placement of the brackets that hold the air bags. We do have a suspension enhancement product that will fit the TDI models. You can use SumoSprings # CSS-1145R to help support heavy loads and improve ride quality.
    view full answer...
  • Can Air Lift 1000 Air Helper Springs for Ram 1500 Replace Firestone Coil-Rite 4175 for 2019 VW Atlas
    The Air Lift 1000 Heavy Duty Air Helper Springs # AL60828HD have a height of 12-1/2" and width of 6". These are designed to fit the 2019-2022 Ram 1500. The Firestone Coil-Rite Air Helper Springs # F4175 fit select years of the Volkswagen Atlas, Beetle, Jetta, Passat, Lincoln MKC, and Nissan Rogue. These are not interchangeable. It looks like you have a 2019 VW Atlas. If that is the case, the only custom fit option is the # F4175. If you have a 2021 Ram 1500 then the # AL60828HD would...
    view full answer...
  • Does Union Tee Put Same PSI In Both Firestone Air Bags
    Hey Dan, if you were to use a union tee like the part # F3025-1 with the Firestone Coil Rite kit part # F4175 the entire system would all have the same psi. So if you put 35 psi in to the inflation valve both bags would have that.
    view full answer...
  • Installing Firestone Coil-Rite Air Helper Springs on 2013 VW Beetle
    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...


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