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2001 Toyota Sienna
Firestone Coil-Rite Air Helper Springs - Rear Axle
Item # F4147
Retail:$290.32
Our Price: $169.92
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2001 Toyota Sienna
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Firestone Vehicle Suspension - F4147
- 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.
W237604147 Firestone Coil Rite Air Bags - Suspension Kit - Rear Axle
4147
Installation Details
This Product Fits The Following Vehicles
- 2007 - 2020 Chevrolet Tahoe
Video of Firestone Coil-Rite Air Helper Springs - Rear Axle
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Firestone Coil-Rite Air Helper Springs Review
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.
Customer Satisfaction Score:
66% were satisfied with this product
34% of customers were not satisfied
- Wrong item was ordered
- etrailer mistake
- Product did not meet expectations
Customer Reviews
Firestone Coil-Rite Air Helper Springs - Rear Axle - F4147
Average Customer Rating: 4.4 out of 5 stars (628 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: Joel 05/20/2021
by: David03/25/2023
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: Xong02/28/2024
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: Richard03/17/2024
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: Brad S.03/19/2024
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: Joseph01/27/2024
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: Jason10/21/2022
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: Josh03/23/2024
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: Eric 05/02/2024
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: Casey S.12/18/2023
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: Alex05/31/2023
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: Mark01/04/2023
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: 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: Off2Mtns12/13/2017
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: Jim01/26/2023
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: Curtis11/26/2023
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: Vincent 04/18/2024
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: Joshua05/29/2023
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: Chris K11/11/2020
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: Shawn02/12/2024
They keep loosing air have checked hoses quick fittings slowly seep air.
by: Murph01/17/2022
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: John03/13/2021
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: Rory10/06/2023
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: 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: Linda L04/18/2023
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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See what our Experts say about this Firestone Vehicle Suspension
- Firestone Coil-Rite Air Bags Compatibility With a 2007 Chevrolet Tahoe with Coil SpacersFor the Firestone Coil-Rite Air Helper Springs # F4147 to fit the coil vibration dampeners that you have between your coils must be removed. This particular kit is also specific to fit a police package edition 2007 Chevrolet Tahoe. If your Tahoe does not have the police package you will need the Firestone Coil-Rite Air Helper Springs # F4108. The Air Lift WirelessONE Compressor System # AL25980EZ is a great system that will allow you to wirelessly control and monitor the air pressure...
view full answer... - Rear Suspension Enhancement for a 2009 Chevrolet Tahoe Police EditionI do have an option for you, but the Air Lift 1000 Air Helper Springs for Coil Springs - Rear # AL60769 you were looking at do not fit the Police Edition of the 2009 Chevrolet Tahoe. For your 2009 Chevrolet Tahoe Police Edition you would need to use the Firestone Coil-Rite Air Helper Springs # F4147 which are designed for use with the Police Edition.
view full answer... - Suspension Enhancement for 2019 Chevy Tahoe and 2016 Coachman Apex 269RBSSFor an air bag kit that fits your 2019 Chevy Tahoe the Firestone Coil Rite kit part # F4147 is your best option as it has the highest quality bag available and would give you ability to add exactly as much suspension support as you'd need by adjusting the air pressure in the bags. The bags of this kit basically just slip between the coils of the spring for installation. The jounce spring solutions are great too like with the Timbren part # TGMRYS4 but the support they provide isn't adjustable...
view full answer...
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Info for this part was:
Updated by:
Leah B
Updated by:
Mary K
Updated by:
Wilson B
Updated by:
Daron K
Updated by:
Alex H
Written by:
Tyler C
Expert Research:
Jameson C
Video Edited:
Jacob T
Video Edited:
Chris R
Video by:
Jonathan Y
Installed by:
Robert C
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