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A loaded trailer or heavy cargo can make the rear sag and throw your steering and braking out of balance. Firestone Coil-Rite Air Helper Springs add up to at least 500 lbs and at most 1,000 lbs of load-leveling support to your existing rear coil springs. With adjustable air pressure from 5 psi to 35 psi, they help keep your vehicle level for better control, even load distribution, and properly aimed headlights when you’re towing or hauling.
Every trip is different, and these air springs let you dial in the right firmness for each one. By manually adjusting the air pressure—side to side if needed—you can balance off-center loads, reduce body roll, and soften road shock. The result is a smoother ride with less bottoming out when loaded and a more comfortable feel when driving empty.
Road conditions and heavy use can wear down factory suspension parts over time, but these Coil-Rite air springs are built from tough, elastic polyurethane for long-term comfort and stability. They maintain their shape under heavy loads and resist damage from repeated compression, so you get consistent performance season after season.
Installing better suspension support doesn’t have to be complicated. The Coil-Rite kit includes the air springs, brackets, hardware, air line, and separate valves for manual inflation. Everything you need for setup is in the box. Once installed inside your rear coil springs, you can easily access the inflation valves at the bumper for quick pressure adjustments whenever you load up again.
The construction material of the fittings may vary.
Customer Satisfaction Score:
92% were satisfied with this product
8% of customers were not satisfied
Ratings & Reviews
These were just as described as far as quality and look. The installation of them were a little more difficult than they show in the video but can easily be done by someone with basic skills. I would recommend if you have the ability to remove the springs and then just insert the bags that way as I couldn’t get one in without doing that. Otherwise the install is pretty straightforward. Haven’t used them with a load or towing yet but hopefully they will work as designed.
It fit great. And works like a champ... I couldn't be happier with these air helper springs! E trailer made it easy and they followed up with me to make sure i'm pleased with the product... Very happy with the service.
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.
I initially ordered the wrong airbags. I called eTrailer and Jeremy H. was very understanding. He got the right ones immediately shipped out and sent me a return label and info while I was on the phone with him. The bags seem good quality comparable to my previous Airlift bags. Instructions were well written and all hardware was accounted for in the shipment.
Easy install on lc200, it’s only been a couple days but test run with a trailer was great. Recommend getting getting inflation bracket (Firestone WR17607560) to reduce the need for any drilling if you don’t go with onboard compressor.
The airbags were difficult to install on a 2021 Sienna. It required removing the rubber stopper from inside the coil spring. Once that was out, install was easy. However, these need to be installed with the valve down as the plastic spacers fall out when the van is lifted for service when installed right side up as recommended. Upside down the air hose is routed thru the center of the plastic donut spacer which holds it in place when the van is lifted. However, once installed "upside down" the valves tend to pinch on the suspension as they move around. The pinching lets the air out and requires the bags to be frequently repositioned especially after the van is lifted for service. It is a good product, just unreliable and requires much inspection and maintenance to work properly. Will be loading up again for a summer trip and will need to reposition them so they work as I just had the oil changed.
These bags along with minor adjustments to my load leveling hitch made towing my 19.4 No Bo trailer so much more relaxing!I am running 20 PSI and 3/4 of an inch higher than stock ride hight. Easy peasy
I bought this set because I was having problems with one of the airbags I previously had gotten. It was on the right side of my forerunner. It had a slow leak. When I replaced the airbag this time it had a very fast leak. I finally found That if I used NAPA Sil-Glyde to insert tube it seems to be holding air. And I squeezed air bag into the spring. Use soap for sliding it in.
Phone service was excellent. Air bags helped a lot with stability. I found it easier to remove the spring from the Avalanche than to fight with it in chassis. Removing the spring also gave me a chance to clean the dirt and rocks out of the hose routing area. It was a little more work to drop the axle down but it really wasn't that bad. I was able to do it all without a hoist. Just used two floor jacks. I just let one side down at a time. Remove your swaybar link and shock and let one side down. Pull the spring and do the work in a vise. Its much easier than fighting with it on your back. Also put the air hose in really hot water and it will relax its memory.
Well I did not expect to have a one year follow up from ETrailer! I’m a 5 Star happy with these airbags over the AirLift 1000’s I had that blew out just after the warranty was up! These bags are more than twice the product, as you can inflate to >60 psi and that makes for a way more steady ride with weight! I typically run mine at around 45 psi now, the AirLift are limited to 28 psi. The construction is far superior and quality is excellent!!!
I am mechanically inclined, but these were near impossible to DIY on my 2006 Honda Pilot. Paid a pro to install, both are leaking but I have not checked it out. Not very pleased at this point.
I am very happy with this kit. It fits perfect on my 03 honda pilot the instructions are detailed. the kit install quick and has everything you need to install (except tools). Great customer service!!
I installed these on my 2006 Honda Odyssey to pull an 18ft (total length) popup camper. My van used to bounce pretty good through intersections and would occassionally bottom out on the big bumps. After putting these in, it rides nice and level, and hardly bounces at all, improving the ride for passengers and popup alike. One note, I had them installed at a local shop and he ran the airline so each stem comes out just in front of the rear wheels (through the bottom body panel) to avoid the exhause.
Easy to install with the help of a friend. The bags inflate easily once installed. Toughest part of the installation was drilling the 1/2 inch hole on each side. Make sure you have some good drill bits!
Excellent product. Fairly easy to install on my Odyssey 08. Lift well the end of the car with my popup trailer.
I'm very happy with this product after installing it on my 2005 Honda Odyssey. The instructions for installation were easy to follow. The stability unloaded is noticable.
I put about 7 lbs of air pressure on each side. I haven't tried it yet loaded, but I believe it will perform as it should. Thanks again etrailer.com great customer service and fast delivery.
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.
Installation of the first side was pretty slow and frustrating. The second side went much better. Dealing with the coil springs is always difficult, and I had a hard time getting the coil spring seated properly. Also, determining where to to drill the hole for the airline is difficult. I ended up using a Dremel to get it in the correct spot. Anyways, the air springs seemed to do their job, and adding 20 psi of air raised the back about 1/2". My wife complained about some squeaking coming from the back. Probably from the coil spring not being seated properly. A week after the install, the Pilot was rear-ended and totaled so I can't give any long term advice.
I purchased the Firestone Air Helper Springs for a 2006 Acura MDX. I wanted some extra lift in order to pull a large pop-up camper (300 lb. tongue weight). I had the springs installed by a local mechanic (install time was approx. 2 hours). Product works great and gives the extra lift that I needed while trailering. I would recommend filling the air springs with a hand pump. With the small volume it is tricky to get just the right amount of air in the system.
The product turned out great. It does the job of levelling out our Honda Odyssey quite well while pulling a boat. I'd like to make a recommendation. After the instructional step of drilling the hole in the bottom control arm, I wish there was something that was provided to protect the sharp edges of the hole that the airline runs through. It seems like a very vulnerable spot where the airlines could be severed. Someone needs to design a hole protector sleeve that sits straddled/sandwiched between the air bag and lower control arm that would protect the air lone travelling through. Just my thoughts, otherwise, this is a wonderful product!
Works great on my 2010 Honda Odyssey. Easy to install if you remove the main bolt of the suspension lower arm (that holds the spring). This is a much better approach than to squeeze the bag between the springs. On an Odyssey, you must first remove the yellow rubber stop bumpers at the top of the springs.
I've attached pictures to show the installed part, the air hose attachments, and a side shot to show the lift I can now achieve with only 24 pounds of air pressure in the bags.
Also, the customer service was outstanding. When I ordered these, Firestone was out of the part. As we waited just under 2 weeks for more to be manufactured, Lexus (not a car; the name of my customer service representative) kept in regular contact with me and was exceptionally courteous and helpful. If you have a minivan that rides low when loaded or towing, I highly recommend these and I am extremely pleased with etrailer.
Joe B.
8/5/2016
Its a year later and I still love the product!
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1/18/2022
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