Firestone Coil-Rite Air Helper Springs - Rear Axle
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2025 Ford Escape
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2025 Ford Escape
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When you’re hauling a heavy load or towing, rear-end sag can throw off your balance and steering. These Firestone Coil-Rite air helper springs fit inside your existing rear coil springs to add up to 1,000 lbs of load-leveling support. By keeping your vehicle level, they help maintain even load distribution and steadier braking and handling under heavy conditions. You get better control and more confident driving without bottoming out or squatting when the weight piles on.
Every load is different, and these air springs let you dial in the pressure to match. With a manual inflation range from 5 psi to 35 psi, you can balance off-center loads or soften the ride when running light. The separate inflation valves for each side let you compensate for uneven weight so the vehicle stays steady through turns and rough spots. The result is a smoother ride that absorbs road shock and helps prevent harsh contact between axle and frame.
Long drives, rough roads, and heavy weight demand strong parts. The Coil-Rite springs are made from durable, elastic polyurethane built to maintain comfort and stability over years of use. They’re engineered to work under heavy loading and adverse road conditions without giving up their shape or support. Each kit comes with brackets, hardware, air line, and separate valves for manual inflation so you have everything needed for installation.
A loaded rear end can lift the front end and reduce tire contact with the road. By adding these air springs inside your coil suspension, you help restore proper balance for improved braking, steering control, and traction. They also help level your headlight beams for safer nighttime driving while reducing tire wear from uneven weight distribution. It’s dependable suspension support designed to keep your setup stable when it matters most.
The construction material of the fittings may vary.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the Firestone coil rite line of air helper springs. Be sure to see eTrailer's fit guide for your application.Our springs are designed for a wide variety of vehicles. They're going to fit most passenger vehicles, vans, some light duty pickup trucks and motor homes. Whenever you haul a heavy load, have a lot of equipment in your vehicle or have a heavy trailer hooked up to it, it's going to cause the back end to sag down which is putting a lot of strain on your rear suspension, not to mention you're taking the contact off the front tires and misalignment your headlights. Our coil rite springs are going to take a lot of that effect out and help the sag in the rear end.Your air springs may look a little bit different than we have here, so you want to make sure you check each other's fit guide for your specific application, but these are going to provide us a smoother ride for vehicles that have coil springs in the back. They're designed to fit inside the spring, which is going to create a variable spring rate and help prevent the sag when we're loaded down and take stress off the rear suspension.
Our springs are going to be made out of a polyurethane, so they're going to be durable and last a long time. They are rated for working in temperatures from negative 40 degrees Fahrenheit all the way up to 180 degrees Fahrenheit. Each set is designed to support 500 to 1000 pounds and having an operating range of five PSI all the way up to 35 PSI.One thing I do want to mention is that our coil rite springs are not going to increase the payload of our vehicle. They're just there to help support the extra weight. So you always want to double check your vehicle's owner's manual and never exceed the manufacturer's recommended weight.Compared to other style of EHRs springs these are specifically made for the coil spring suspension, opposed to the leaf spring where that would sit on top.
These are gonna help out a lot with the SAG and prevent bottoming out and give us a smoother ride even when we're unloaded.Our kit's gonna come with two manual inflation valves. That way the bags can work independently from each other so we can inflate each one to our desired amount. That's going to help a lot with those off center loads, or if we take an evasive maneuver, it's going to take out some of that body roll. Our helper spring kits is going to come with everything you need to get it installed. Both springs, any brackets necessary, the lines, and the inflation valves.Ryan wrote in saying the install was easy on his 2014 FJ cruiser.
A year later he wrote back in and saying after a year of regular use, the bags had been great. They keep as FJ level where he's towing, and as a result, the steering while towing is vastly better.If you've had the back end of your vehicle sag down, rough ride, uneven tire wear, or even misaligned headlights our coil rite springs are going to help out a lot. All while giving us a smoother ride.
Ratings & Reviews
I learned the hard way that towing with independent rear suspension ends up wearing out the inside edge of the rear tires due to the sag changing the toe-in of the rear tires. I purchased these to raise up the back end when towing. Just finished installing. Went smoothly. I may have missed it in the directions, but on my RAV4, the upper coil spring bumper (They call it the upper protector) can be installed up thru the bottom support of the coil spring. I tried unsuccessfully to slip it between coil springs. It would not fit. It was a bear slipping the collapsed air spring between the coil springs. But with the aid of a very blunt tire iron, it went fairly quickly. Thumbs up so far. Time will tell if tire wear goes away, but I'm sure this will help. Thank You!
I've yet to install these, I will update once complete. But I've heard from numerous people that if you life the van at the jackpot and let the weight of the tire extend the spring, you can remove the stopper with channel locks and slide the bag in using a liberal amount of soap, so you don't need to disassemble the axle. Again, I will update when completed.
THE SERVICE IS AMAZING IHAD A SMALL ISSUE AND IT WAS HANGELED BY PAULA IMEDIATELY THANK YOU THE PRODUCT IS INSTALLED ON A 2014 VW BEETLE THERE IS A HOLE IN THE BOTTOM OF THE SPRING HOLDER SO I INSTALLED THE AIR SPRING WITH THE LINE AT THE BOTT0M AND THREADED THE LINE STRAIGHT OUT THE HOLE PRETTY SMOOTH THANKS AGAIN
my air bags for my 23 ram were easy to install, the service was excellent. I will be telling every body I know about how friendly and easy it was to order from you.
Worked well. Second time I’ve installed them on a 4Runner. The result was a needed improvement in sway, dive and sag. It also helps the steering wander.
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.
Fit my 2001 Expedition perfectly. Took away all the sag when towing and like others have said I like the way it rides better even unloaded with 5PSI in the bags. Well worth the money, easy install. FYI this was my first time using bags on any vehicle, I was nervous and these were fabtastic!
Firestone airbags have worked well for my 2017 4Runner. When I'm not attached to my camper, I keep the airbags deflated to about 5 PSI. But when I put my trailer 3,500 lb. Onto the back of my 4Runner I get several in of sag. I pump up the airbags to about 20 psi and I level out the whole rig. What a perfect hybrid system to have. It's there when you need it. Perfect system for a sagging. Backside on a rear coil spring 4Runner. Thanks, e-trailer
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.
Parts are very good quality but installation instructions for my 14 Jetta were very poor. Had to air to 25 psi to keep air bag from shifting in spring but did help stabilize vehicle.
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.
I installed these in my buddies 2024 Toyota Sienna Hybrid FWD. I installed with valves up and it took about 4 hours. I had to remove the springs to remove the stock upper bumpers. He's in a wheel chair and has a lift on the back. Going to test it out this week.
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.
Installer couldn't get them to hold air for more than a day.
And if pressure falls below 5 psi, there's a risk of damaging them.
Installation was difficult.
But they do fix the ride height issue when towing.
If I had it to do over, I'd get Sumo springs.
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!!!
Great service as usual !
Installed on 17'Jeep Wrangler to help with sag when towing trailer. Works perfectly to keep the rear end up. I don't suspect they will last forever,but they are hefty and definitely worth the price. Installation requires patients.
Easy install, I got them rolled down and used zip ties to keep them that way, it made it easy to slip them in the coils, then snipped the zip ties. Aired them up and they lifted my jeep. Looks like they are going to work great for heavy loads.
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Mike L.
10/2/2022
The air helper spring system is covered by a limited lifetime warranty on air springs and a 2-Year limited warranty on hardware