Firestone Coil-Rite Air Helper Springs - Rear Axle
(622 reviews)
Price: $144.12
Firestone Coil-Rite Air Helper Springs - Rear Axle
Retail:$203.71
Our Price: $144.12
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- Reviews (622)
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Firestone Vehicle Suspension
- Air Springs
- Rear Axle Suspension Enhancement
- Light Duty
- Firestone
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.
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.
W237604155 Firestone Coil Rite Air Bags - Suspension Kit - Rear Axle
4155
Item # F4155
Installation Details
This Product Fits The Following Vehicles
- 2005 - 2007 Saturn Relay
- 2004 - 2022 Toyota Sienna
- 2005 - 2007 Buick Terraza
- 2005 - 2009 Chevrolet Uplander
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
- Wrong item was ordered
- etrailer mistake
- Too difficult to install
Customer Reviews
Firestone Coil-Rite Air Helper Springs - Rear Axle - F4155
Average Customer Rating: 4.4 out of 5 stars (622 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: Richard03/17/2024
2021 Toyota Sienna
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: DD05/15/2023
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: Duc03/13/2024
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: David 10/07/2022
2015 Toyota Sienna
Units was fairly easy to install. It was a complete kit and they work great !
I would recommend these air bags to anyone looking for such a product.
David
10/18/2023
They air lifts are working well.
Mike L.
11/9/2023
@David We're happy to hear that!
by: Alexander 09/02/2023
Toyota Sienna
I use my Toyota Sienna as my work van, so it's loaded with tools and supplies. It's heavy enough that the rear suspension sags, and the car rocks forward and back on rapid deceleration. I was almost ready to pay for a custom suspension before I found this product. I've been using it for a year and I can't say enough good things. It was reasonably easy to install, had to get some ramps and a creeper, but the rest of the installation was tool free. I measured the height of the front fender to the ground (highest point of the gender) and inflated the system until the rear fender was within 1/2"of that. For me it wound up getting 28 psi. Just short of the 30 psi max working pressure. The benefits were immediate. My acceleration improved, because the car didn't rock back as much when accelerating. Surprisingly, my breaking got better, which makes a little sense, since the car was only leaning forward, and not teetering back and forth. Best of all, the van was no longer leaning like a motorcycle every time I made a turn. The entire driving experience improved massively. It's been a year, and things are still going strong. Well worth the money.
by: John L.12/09/2013
2006 Toyota Sienna
I put these on two Toyota Siennas ('06 and '09). Installation was "easy" without any special tools to speak of. I didn't have to remove the bottom bolt of the shock. If you collapse the rubber and use the red plugs to hold them without air, they will fit between the spring coils with a little coaxing. So far very happy with both. Have had the vehicles loaded heavily multiple times and the difference in load capacity and handling while full is impressive. Ride can be a little stiff if you leave the air pressure at 35lbs without a load. I find around 25lbs is perfect for average use. Anyone with a Sienna knows that loaded down and the trailer hitch will drag in and out of parking lots etc. No longer with these on! Drilled through the bottom of the plastic bumper on one for the valves. The other one I attached an angle bracket to the plate where you would mount a larger trailer power plug.
Would absolutely recommend these to anyone with a Sienna.
JL in SC.
by: William 08/03/2023
Toyota Sienna
I had these installed on my Toyota Sienna one year ago and I couldn't be happier with the product. I frequently load the vehicle with heavy DJ and sound equipment and when inflated to about 35 psi, the air springs provide perfect support. No more squatting or handling like a boat going down the road. I highly recommend!
by: Bill 10/21/2021
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.
Bill
10/22/2022
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.
by: Karl 01/22/2022
All parts there to install, no buying necessary parts that are not included. Instructions and video will make installation straightforwRD
Karl
1/23/2023
Working great, keeps tail of car at correct height. Cut the air lines when installing as directed. Do not use sidecutters.
by: Don R.10/05/2016
2008 Toyota Sienna
I did not actually time the install but I believe it was less than an hour. I have been loading my 2008 Sienna very heavy when going on vacation. This last time my trailer hitch that I use to haul 5 bikes dragged leaving the driveway and was just a few inches off of the pavement when sitting on the level. I installed this system and tested the load with live body weight, I had a family visiting, they crawled into the van and it did not sag half as much as before. My next big trip is coming up in a week, so we will be giving it the full road test then. I recommend this product.
Don R.
10/11/2017
I just came back from another trip and it worked well.Once installed it is easy to inflate and deflate as needed.
by: Cal P.03/09/2017
2015 Toyota Sienna
I'm very happy with my Firestone Coil-Rite kit for my '06 Sienna. I added a
"Tee" to join the bags together and routed the schrader valve to exit inside my fuel fill door. It was a little extra work, but well worth it as it's out of the weather and sight, and I don't have to scrabble around on the ground in the slop to check / adjust the pressure. I run 15 -17 lbs when I'm not hauling a load and that seems to help with body roll, and up to 25-28 psi fully loaded. The kit does the job it was intended for, and hasn't leaked a snif of air since I installed it a year ago. Three thumbs up!
Cal P.
3/11/2018
Two years out, and still happy as a clam. Just do it!
by: Bruce B.01/31/2015
2011 Toyota Sienna
This Firestone #F4155 air-bag product is excellent. The fit to my 2011 Toyota Sienna was just as described. I installed the bracket and the two air-fill valves in the jack compartment, easy to get to and out of the weather. etrailer has been a pleasure to deal with.
Bruce B.
2/1/2016
Love the product. Had it installed by my favorite local Toyota dealer. Makes a nice difference towing our Park Liner Fiberglass Egg Camper. Would certainly recommend.
by: Bryan 10/03/2023
Work great
by: E07/07/2014
2008 Toyota Sienna
I installed Firestone Coil-Rite Air Helper Springs and they work great. With minimum air pressure they improved the unloaded ride and driveability. Loaded the van for vacation, added air pressure to bring the ride height back to the normal ride level and the van drove and handled better than when it was new.
Followed your on-line installation video and installation was a breeze.
The installation instructions with the kit were poor and incomplete.
.
by: Scott M09/15/2016
2011 Toyota Sienna
These were surprisingly easy to install using ramps and a floor jack and really helped with preventing our Sienna from bottoming-out when carrying heavy loads on the hitch mounted luggage carrier. Highly recommended. Be sure to watch the installation video on etailer!
by: Terri10/27/2018
Still holding pressure and does what I need. Van is more stable unloaded, even with new shock dampers it's better. With a full load of hundreds of pounds in back the van is much more stable and does not wallow like a whale near as much. Towing trailers is much better too. Didn't expect airbag pressure to hold for months and months but no leaks so far. Only issue was as expected...little bit of elbow grease to install bags and find best airline routing. some bag rubbing squeeks in the coils but I did expect some inherent to it's design. Nice product I would recommend to friends.
by: Paul 05/14/2023
2010 Toyota Sienna
This is a really solid product. Installed one 10 years ago and never had one issue. Replaced vehicle and installed another. Directions could be better out of box. Fortunately the Sienna is fairly straightforward. Thanks!
by: Tad 08/26/2022
Etrailer and Firestone have some great customer service. This kit was fairly simple to install
by: Marc05/29/2014
2006 Toyota Sienna
Installed on 06 Sienna. Bought these for towing our 16' boat. Had a mechanic buddy put the bags in and ran air lines myself. Had one initial leak but I recut the end of the air line and it works fine. Noticeable difference when inflated to 25 psi. Some slow pressure loss over 24 hrs but well within driving times needed. Overall excellent service from etrailers and a very good product so far.
by: CM05/27/2016
2011 Toyota Sienna
Excellent product, installed on 2011 Toyota Sienna that tows 3,000# Hybrid Travel Trailer. Works great to keep rear level (along with Anderson Hitch Weight Distribution). We now run air in them without the trailer as well to help prevent typical Sienna sag when loaded with people or loads.
by: Mark M07/06/2011
Toyota Sienna
This was my second order with Etrailer. AWESOME. Product went out same day it was received. Great service and pricing, with service being the most important to me. The air bag support system for my Toyota Sienna van's rear spring coils was easy to install with very minor modications. They made a huge difference on the back end of the van "hitting" the ground when loaded. Just what I needed to pull a trailer.
by: Tom11/02/2016
Very useful for heavy loaded road-trips (fully loaded mini van) or trailer attachments.
Easy to install and use. Definitely a recommendation!
Thank you e-trailer team!
by: Dan02/15/2022
Box was a little damaged but contents was unharmed. Things look good. Dealing with etrailer has always been a good experience
by: John08/23/2022
2021 Toyota Sienna
Didn't fit
David B.
9/20/2022
Did you try putting a little bit of dish soap on the bags and sliding them into position. Then you can just spray them off.
by: Robert 08/18/2022
Robert E.
8/19/2023
the valve that hold the air line is bad how can i purchase 2 new one. The line is leaking and i cannot air it up. please let me know. thank
25
622
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See what our Experts say about this Firestone Vehicle Suspension
- Suspension Air Bag Kit For A 2022 Toyota SiennaPer the manufacturer The Firestone Coil-Rite Air Helper Springs # F4155 is confirmed to fit your 2022 Toyota Sienna, and are for rear axle suspension only. These bags will fit inside your existing coil spring suspension on your vehicle. The bags are made out of a durable, elastic polyurethane. They have a load-leveling capacity at 500 pounds, and have an adjustable air pressure between 5 psi to 35 psi. The coil-rite springs will not increase your vehicle's weight-carrying capacity....
view full answer... - Best Rear Suspension Enhancement For 2021 Toyota SiennaBy far the best suspension enhancement for your 2021 Toyota Sienna are air helper springs: - Firestone Coil-Rite Air Helper Springs # F4155 The reason the Coil-Rite # F4155 are the best is due to the amount of additional support they add directly to the coil springs on your Sienna. When inflated they will help eliminate side-to-side movement, improving overall stability, and help remove squat. With less squat - and the weight more evenly distributed to the front and rear of your '21...
view full answer... - Suspension Enhancement Recommendation for 2020 Toyota SiennaWe have one air bag kit that fits the rear suspension of your 2020 Toyota Sienna with the Firestone Coil Rite kit part # F4155 which gives you the ability to add support to the rear suspension of your 2020 Toyota Sienna like you are needing. This will help with cargo in the rear of the vehicle as well as when towing.
view full answer... - Air Bag Suspension Kit for 2021 Toyota Sienna AWDWe do have an air bag suspension enhancement kit that fits your 2021 Toyota Sienna AWD with the Firestone part # F4155 that you referenced.
view full answer... - Recommended Suspension Enhancement For 2022 Toyota SiennaI recommend the Firestone Coil Rite, # F4155 for your 2022 Toyota Sienna. Firestone is known to have higher quality air bags than the competition and this kit easily installs by slipping into the coil spring on your Sienna. This will allow you to inflate the air bags as needed to compensate for loads but have "normal" ride quality when not heavily loaded and have tongue weight from a trailer. Please note the linked product review and installation videos below.
view full answer... - Helper Springs For A 2018 Toyota SiennaThe Firestone Coil-Rite Air Helper Springs # F4155 comes with everything you need when installing helper springs on your 2018 Toyota Sienna. Using these helper springs will increase the stability to promote a smoother ride and prevent bottoming out on your Sienna. The springs are made out of a durable, elastic polyurethane which will provide comfort and stability. The load-leveling capacity for these helper springs is at least 500 pounds (at most 1,000 pounds). They have an adjustable...
view full answer... - Rear Suspension Enhancement Recommendation for 2018 Toyota SiennaFor your 2018 Toyota Sienna the suspension enhancement kit I recommend is the Firestone Coil Rite part # F4155 because Firestone is known to have higher quality air bags than the competition. This kit installs by slipping into the coil of your Sienna. Check out the picture I attached that shows it installed. I also attached an install video for this kit on a similar Sienna for you to check out too.
view full answer...
- Where To Route Air Line on 2021 Toyota Sienna with Firestone Coil-Rite Air Helper SpringsI checked with Firestone and confirmed the Firestone Coil-Rite Air Helper Springs part # F4155 for a 2021 Toyota Sienna (FWD). It looks like we have installed a few of these kits on some older models, in these the air line went through the top of the spring mount. I don't show any obstructions in the way but if you do have any then you make need to make an opening, you shouldn't have to drill through metal or anything though.
view full answer... - Do Firestone Coil Rite Bags Need Air Pressure When Not NeededWhen not needed you would want to keep 5 psi in the Firestone Coil Rite helper bags part # F4155 to prevent them losing their shape and damaging themselves. When needed you'd want to run whatever PSI works the best.
view full answer... - Valve Stem Location Recommendation for Firestone Coil-Rite Air Spring on a 2006 Toyota SiennaThe first priority for the valve stem location when installing Firestone Coil-Rite Air Helper Springs # F4155 is that the airlines will be routed in such a way that they would not come in to contact with any areas that might pinch or melt the lines. With that being said, I have seen a lot people install them into the rear bumper, out of the way of anything that might hit it, and not directly behind a wheel to prevent road grime from building up on it too much. You would do this by drilling...
view full answer... - Will The Firestone Coil-Rite F4155 Fit A 2009 Chevy Uplander VanYes, the Firestone Coil-Rite # F4155 are indeed compatible with your 2009 Chevy Uplander. They will definitely help to improve your ride quality, especially if you are hauling a heavy load. They are very easy to install too. The kit includes two standard air valves that will be mounted on the rear bumper. I have linked an install video below if you want to take a look.
view full answer... - Air Bag Suspension Kit Recommendation for 2021 Toyota Sienna AWDYes we do have an air bag suspension enhancement kit that fits your 2021 Toyota Sienna AWD with the Firestone part # F4155 that you referenced.
view full answer... - What Is Included In The Package With Firestone Coil-Rite Air Helper SpringsThe Firestone Coil-Rite Air Helper Springs, part # F4155 price includes both air springs, includes all materials necessary for installation. To make it easier to control inflating or deflating of the air springs from the driver seat I recommend installing an onboard air compressor system like part # F2158. This comes with a gauge that lets you keep track of the amount if air you have in the air spring system.
view full answer... - Installation Process for Firestone Coil-Rite Air Helper Springs # F4155 in 2005 Chevrolet UplanderIn your 2005 Chevrolet Uplander the Firestone Coil-Rite Air Helper Spring Kit # F4155 will install with its air valve at the bottom of the spring. The vehicle's bump stop is to be removed and the included spacer will be placed at the bottom of the air spring in your installation. The written instructions are linked for your reference. Always keep these springs inflated to at least their recommended minimum pressure of 5-psi and never exceed the 35-psi limit. If you prefer to have automated...
view full answer... - Do Firestone Coil-Rite Air Helper Springs Fit 2021 Toyota Sienna FWDI went ahead and double-checked with the manufacturer, Firestone, for you just to make sure, and can verify that yes, the Coil-Rite air springs will absolutely fit your 2021 Toyota Sienna with front-wheel drive. The correct part for your '21 Sienna is the following: - Firestone Coil-Rite Air Helper Springs # F4155 These air springs are going to do a superb job of helping keep your Sienna level and giving you the best handling while under load, such as when towing. They are going to give...
view full answer... - Trailer Hitch Recommendation for 2009 Toyota Sienna LE for Carrying Motorcycle CarrierFor your 2009 Toyota Sienna there are no hidden trailer hitches that fit so your best option is going to be the Draw Tite part # 75237 which has the highest tongue weight capacity of 675 lbs. Rear suspension enhancement would be a great option too to prevent suspension sag when carrying the weight of the carrier and your motorcycle. For that you'd want the Firestone # F4155 and you'd be set.
view full answer... - Recommended Air Springs for 2005 Toyota Sienna to Reduce Body RollThe Firestone Coil-Rite Air Helper Springs # F4155 will help reduce body roll and will improve both steering control and balance on a winding highway whether loaded or unloaded. It will level your headlight beams to give you a clear view of the road. This system also reduces tire wear and assists with braking. Improving the stability and stance of your minivan will help with many aspects of the ride of your vehicle. These springs fit inside your current coil springs to enhance your...
view full answer... - Recommended Suspension Enhancement for a 2011 Toyota Sienna Firestone Vs. TimbrenThe Firestone Coil-Rite Air Helper Springs part # F4155 and the Timbren Rear Suspension Enhancement System part # TTORSEN04 will both do a great job of helping handle the added weight on the rear of your 2011 Toyota Sienna which will in turn decrease vehicle sag. The Timbren springs are more designed for towing as they are stiffer and provide more support than the airbags. The airbags will still give you plenty of support for your bike rack and will not sacrifice ride quality whereas...
view full answer... - Rear Coil-Rite Helper Springs for a 2013 Toyota Sienna Do Not Require a Heat ShieldThe Coil-Rite helper springs # F4155 fit inside of the rear coil springs on your 2013 Toyota Sienna. The exhaust is not close enough to cause any problems. Also, the coil springs themselves would also help dissipate any heat. I have included a link to a video showing an example installation for you. Like you said, the Air Lift springs # AL60732 do come with a heat shield as a fail safe. I have linked a video of this kit as well. The Air Lift system is a good value so if the heat shield...
view full answer... - Comparing Air Lift and Firestone Air Bags for a 2019 Toyota Sienna AWDI checked with Firestone, the Firestone Coil-Rite Air Helper Springs part # F4155 are not listed as a fit for AWD models. That said, I also checked with Air Lift and the Air Lift 1000 Air Helper Springs for Coil Springs part # AL60732 are a fit for all models. Therefore, you really don't have an option for which to go with but I would choose Air Lift anyway even if you did as they provide a tee fitting so you can fill both air bags with one port and they use a black air line which is easier...
view full answer... - Troubleshooting Leaking Firestone Air Bag Problem in 2008 Chevrolet UplanderThank you for your purchase of Firestone Coil-Rite Air Helper Springs # F4155 for your 2008 Chevrolet Uplander. I suggest your mechanic begin his troubleshooting at the bag that deflated. If he inflates the bag to about 30-psi (near its 35-psi maximum) and applies soapy water to all connection points and the bag surface too he can check for air leaks. It is not necessary to remove the system from the Uplander to do this testing. The same test can be done wherever he can access the air...
view full answer... - Suspension Enhancement Fit for 2014 Toyota Sienna AWDI have a solution for you, but unfortunately the Firestone Coil-Rite Air Helper Springs # F4155 are not confirmed to fit your 2014 Toyota Sienna AWD. I spoke with my contact at Firestone and he confirmed they do not list this kit as a fit for the AWD Sienna. For a coil spring suspension enhancement system, I recommend the Air Lift 1000 Air Helper Springs for Coil Springs # AL60732 because they are confirmed to fit your Sienna AWD and are similarly designed to the Firestone air bags. When...
view full answer... - Cover Recommendation for 2020 Rockwood 2280BHESPFor the length of your 2020 Rockwood 2280BHESP the best storage cover for the climate you mentioned would be the Aquashed SFS part # 290-12295 that you referenced. This fits the best and will do the best in your winter climate. Then for air bag suspension support for your 2015 Toyota Sienna the Firestone kit part # F4155 would do an excellent job giving you additional support when towing.
view full answer... - Will Air Lift Wireless ONE Compressor Kit Work with Firestone Air Bags on a 2021 Toyota SiennaYes, the Air Lift and Firestone air bag kits and compressors use the same 1/4" hose size for their air systems so you will be able to use the Air Lift WirelessONE Compressor System # AL25980 with the Firestone Coil-Rite Air Helper Springs # F4155 on your 2021 Toyota Sienna.
view full answer...
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Jenny N.
5/23/2023
I understand where you are coming from as at first I believed that we needed to update the site. However when we mean no drill in this application we mean that you do not need to drill bolt holes into the vehicles frame. All of the air springs kit will require a hole to be made for the air line nozzle.