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2004 Cadillac SRX
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Firestone Coil-Rite Air Helper Springs - Rear Axle
Part Number: F4164
In Stock
$131.23
Retail:$208.83
You Save: $77.60
2004 Cadillac SRX
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Firestone Vehicle Suspension - F4164
Highlights
- Custom Fit for Your Vehicle: Mounts to existing attachment points
- Levels Heavy Loads: Keeps your vehicle even and stable when hauling for safer handling and braking.
- Customizable Support: Adjust 5–35 psi to level off-center loads and improve ride comfort.
- Protects Steering and Tires: Prevents squat so headlights aim correctly and tires wear evenly.
- Smooths the Ride: Absorbs road shock to reduce bounce and bottoming out under heavy loads.
- Durable Polyurethane Build: Elastic design provides lasting comfort and stability over time.
Features to know about
Stay Level and Confident Under Load: Up to 1,000 lbs of Rear Suspension Support
Heavy loads or trailers can drop the rear end and throw off steering and braking. Firestone Coil-Rite air helper springs add load-leveling support of at least 500 lbs and up to 1,000 lbs to help keep your vehicle level and balanced. By maintaining even load distribution, you improve braking, handling, and headlight aim, while preventing bottoming out or excess tire wear when hauling or towing.
Tune the Ride for Every Trip: Adjustable Air Pressure from 5 psi to 35 psi
Not every day calls for the same suspension stiffness. With Coil-Rite’s adjustable air pressure range of 5 psi to 35 psi, you can fine-tune the support for the weight you’re carrying. Add air to firm things up when towing or hauling, then drop back down when unloaded for a smoother ride. The separate manual inflation valves allow side-to-side adjustment so you can level off-center loads with ease.
Smooth Out Rough Roads: Cushioning That Prevents Bottoming Out
When rough pavement or heavy weight sends your suspension to its limits, these air springs step in to absorb shock and soften the hit between the axle and frame. The added cushion helps your vehicle handle bumps, dips, and uneven roads with better stability and comfort, cutting down on bounce and sway that make towing or hauling tiring.
Built to Last Through Years of Use: Durable Polyurethane Construction
Firestone Coil-Rite springs are made from elastic polyurethane designed for long service life under heavy loading and adverse road conditions. Each kit includes the air springs, brackets, hardware, air line, and separate valves needed for manual inflation. Replacement single springs are also available if maintenance is ever needed down the road.
Specs
Weight and Capacity
- Load-leveling capacity: at least 500 lbs (at most 1,000 lbs)
Pressure
- Adjustable air pressure: 5 psi to 35 psi
Warranty
- Air springs: Limited lifetime warranty
- Hardware: 2-Year limited warranty
Note
The construction material of the fittings may vary.
W237604164 Firestone Coil Rite Air Bags - Suspension Kit - Rear Axle
4164
This Product Fits The Following Vehicles
- 2008 - 2021 Toyota Land Cruiser
- 2008 - 2011 Lexus LX 570
- 2016 - 2027 Infiniti QX80
- 2008 - 2016 Toyota Sequoia
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- Wrong item was ordered
Ratings & Reviews
4.4
780 reviews
by:
Jarrod
07/14/2025
2016
Toyota
Land Cruiser
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.
by:
Matt
10/18/2019
The instruction are not for independent rear suspension. They are for a straight axle. All you have to do is disconnect the sway bar links and remove the shocks and you can slide the bags into the coils. It’s not easy though. They do make a big difference in towing. I cut a piece of aluminum angle to make a bracket for the valves, and that makes it easy to access for pressure adjustments.
by:
Thomas
11/10/2021
Air bags have worked well on our 2010 Sequoia for one full year. We also pit purchased the service kit, but we haven't had to use any of that yet.
by:
Derek G
02/06/2017
2011
Toyota
Sequoia
Great product, with moderate install. I had to drill out the lower pan of the coil spring in order for the hose not to be pinched. Other than that, it went smooth and has been working great for almost a year. I would highly recommend this product.
Derek G.
2/6/2018
Fantastic product. Theyre on my 2011 Toyota Sequoia and still works like a charm. By increasing the suspension on my rear wheels, my stability has improved, trailer sway has been eliminated and my rear tires dont wear out on the insides. I just wish I bought these air bags years ago. Since installing 2 years ago, I have travelled approximately 5,000 km while towing with no issue. While towing I fill to 30 psi, and when not towing, I keep them just under 10 psi.
by:
Mark
08/12/2017
2011
Toyota
Sequoia
Easy install on 2011 Sequoia. Jack up and support right side of vehicle, remove wheel. Deflate and plug bag then stuff into the middle coil of spring. Use soapy water if bag hangs on spring coils, I used sweat.
Make sure you run the air line through the top of the spring mount before unplugging the bag. As soon as you remove the plug, attach air line to bag. It's much more difficult to plug in the air line after bag is inflated.
Run air line to left side and repeat , about a 1 hour job. Firestone really should include a T fitting to run the bags together.
At 10psi Sequoia sits about 1/2" taller in the rear, I'll probably run them about 8psi unloaded. Will have to see how they perform and hold up under load, so far I'm impressed.
Make sure you run the air line through the top of the spring mount before unplugging the bag. As soon as you remove the plug, attach air line to bag. It's much more difficult to plug in the air line after bag is inflated.
Run air line to left side and repeat , about a 1 hour job. Firestone really should include a T fitting to run the bags together.
At 10psi Sequoia sits about 1/2" taller in the rear, I'll probably run them about 8psi unloaded. Will have to see how they perform and hold up under load, so far I'm impressed.
by:
Martin R
06/04/2025
I think the air bags are probably ok but I haven't finished installing them yet. I like etrailer because you usually have a video on how to install your products. I bought these for a 2008 Toyota Sequoia. The 2008 Sequoia has independent suspension and all your install directions are for a sold axle. The 2008 Sequoia does not have a rubber bump stop in the middle like the 2007 has. When I called the help line the agent just used the written directions like I had that were not correct. He said I didn't have to remove the coil springs to install the air bags. That's wrong, I had to remove the springs and it was sill hard to get them in. I finally found a utube video that helped.
by:
Thomas
10/29/2022
2010
Toyota
Sequoia
We installed a set of airbags in Fall of 2020. We originally gave a five-star review. However, air leaking started in about a year. By Fall of 2022, the left airbag was diagnosed as leaking. We're having another set installed in a couple of weeks. So, because of the problem, I'm down to at least three star review on these airbags!
by:
Mike
11/04/2017
2003
Chevrolet
Silverado
Great product, I have it on my 2003 Silverado to level the truck out while towing my 5th wheel. I only gave 4 stars because I think it should come with a "T" fitting so both bags could be filled at the same time with an equal amount of air.
by:
Aaron
09/26/2023
2022
Toyota
Tundra
Working great after a year but rarely used. Easy install at home.
by:
Eric w
06/22/2017
2012
Toyota
Sequoia
They followed up very well
by:
Bohoon
05/26/2026
by:
Jung-Jin
03/11/2022
Good company
by:
Bryan
02/18/2026
by:
Wellington
09/01/2022
by:
Brad
09/08/2022
by:
Bruno
06/19/2025
by:
Gerald
01/14/2022
2011
Toyota
Sequoia
by:
Nathan
06/22/2023
by:
Stanley
07/03/2025
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!!!
Gwendolyn Y.
7/10/2025
Really cool to hear how well the airbags have been working out for you, especially hearing your experience in the past. How's the ride day-to-day when you're not hauling that awesome camper?
Stanley
7/4/2026
Other than a slight leak in the driver’s side that is not any fault of the product, this set up has worked extremely well! I’m very happy with these air bags and would highly recommend them over the AirLift1000 bags as there’s no comparison in quality! These Ride Rite bags are worth every penny!!!
by:
Dustin
07/29/2026
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.
Heather A.
7/30/2026
Thank you so much for taking the time to leave a review and for sharing those awesome photos! I'm really glad Jeremy was able to get everything straightened out quickly and make the exchange process easy. How are the bags working for you so far?
by:
Joel
01/19/2026
Chevrolet
Avalanche
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.
Lazer S.
1/20/2026
Good idea taking the springs off, Joel! These can definitely be a bit of a pain in the butt with all the stuff impeding an easy install. Being able to clean the area is also nice! What are you towing with your Avalanche? Or did you want these more for regular driving?
by:
Randall
08/26/2026
2022
Ram
1500
Great Idea - but they won’t hold air, which makes them useless! I knew they would be difficult to install, so I had an experienced auto mechanic who has installed these before to help me. They went in nicely, there were no leaks at the fittings-but they just refuse to hold air. Very disappointing.
Mike L.
8/26/2026
Have you tried putting a dishwashing liquid/water combo on the area where the air line joins with the bag? This will make any leaks stand out like a sore thumb. It's extremely important that the air lines are cut precisely at a 90° angle. You can't use angle cutters, because it will crush the air line and it'll always leak....
by:
Tom
07/13/2026
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.
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.
Mike L.
7/14/2026
I'd make sure that the tubing that goes into the air spring's fittings are cut so they're perfectly square. That is the main culprit when it comes to leaks....
by:
Ethan
06/23/2025
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.
Ethan
6/25/2026
I had to take the right rear airbag and deflated it. I took a piece of mudflap about a quarter inch thick and put it on top of the airbag with a hole in the middle of the mudflap piece that gave more clearance between the car and the airbag valve. Now I have had no leaks for a year. With the least 9000 miles of towing and rough terrain.
by:
Larry
10/10/2026
2013
Nissan
Armada
Excellent product! Raised my sagging rear end, and made the ride 100% better! Easy install. I actually removed my springs, and installed air bags. Much easier for me. I put new springs in, which made it easy for me.
2013 Nisssan Armada.
Etrialer comes through again! Thanks!
2013 Nisssan Armada.
Etrialer comes through again! Thanks!
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See what our Experts say about this Firestone Vehicle Suspension
- Best Rear Suspension Enhancement Options For 2016 Toyota Land Cruiser With 2.5" LiftHey Anthony, thanks for reaching out. You are on the right track with the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension # CSS-1145R being a good option for your 2016 Toyota Land Cruiser. They insert inside the factory coils so you can easily add support and stability. The 2.5" lift will not be a problem since the coils are still there. These are by far the easiest way to add rear end support. We also offer an air bag insert for the rear coils part # F4164. These are...
view full answer... - Suspension Enhancement Recommendation for 2008 Toyota Sequoia Towing TrailerThe Timbren kit part # TTORSEQ1 that you referenced is the correct fit for your 2008 Toyota Sequoia and would give you additional suspension support when towing. That said I wouldn't necessarily recommend this kit unless you were planning to be towing most of the time as it would make the ride quality a bit harsher when not towing. The better option if you are concerned about ride quality is the part # F4164 which allows you to use varying air pressure in the bag so that you can tailor...
view full answer... - Does Upper Spring Seat Still Get Drilled if Installing Firestone Coil Rite Upside DownHey Blair, if you were going to install the Firestone air bag kit part # F4164 upside down then cutting the hole in the top of the spring seat would not be necessary but this is not the recommended way to do this so I would lean on recommending you do it the way the instructions describe. Is there a reason you want to install it upside down?
view full answer... - Comparing Suspension Enhancement Colors for 2013 Toyota SequoiaThe Air Lift and Firestone Coil-Style air springs that fit your 2013 Toyota Sequoia are different colors so that they do stand out actually. Coil-style springs install inside your coil suspension so they are a bit more hidden while standard air bags install above the axle so they are seen a bit easier. If you want suspension enhancement that is a black color then I recommend the Timbren kit # TTORSEQ1. This simply replaces the factory bump stops on your vehicle so your suspension gets...
view full answer... - Are Firestone Coil-Rite Air Bags the Same Dimensions as Air Lift Springs for 2008 Toyota SequoiaYes the Firestone Coil-Rite springs, # F4164, have nearly the same dimensions as the Air lift springs, # AL60786. This is because they install the same way and same place and are custom fit products for the 2008 Toyota Sequoia. If you are debating on which system to get, Firestone is the way to go. Firestone is a leader in the industry and they make a good, quality product. The Firestone bars are 5-1/2 x 10 inches and the Air Lift bags are 5-3/8 x 9-1/2 inches.
view full answer... - Will Firestone Air Helper Springs Work With 2016 Infinity QX80?The Firestone Coil-Rite Air Helper Springs - Rear Axle # F4164 is compatible with all models of the 2016 infinity QX80. The Air Lift Load Controller Compressor System for Air Helper Springs- Heavy Duty - Single Path # AL25854 is also my recommendation for adjustability at your fingertips.
view full answer... - Rear Air Bag Suspension Enhancement Recommendation for 2016 Toyota Land CruiserFor air bag style of suspension enhancement that fits your 2016 Toyota Land Cruiser the Firestone Coil Rite kit part # F4164 is a confirmed fit and will work well. This fits into the coils on the rear suspension which will then give you the additional support you need.
view full answer... - How To Help Prevent Rear End Sag While Towing with a 2016 Toyota Land CruiserI have two option to help decrease rear end sag on your 2016 Toyota Land Cruiser while towing, the Timbren Rear Suspension Enhancement System part # TTORLC2 or the Firestone Coil-Rite Air Helper Springs part # F4164. The Timbrens are a one time only install whereas the Firestones require adjustments. That said, these adjustments also mean you can really fine tune your setup for the perfect amount of support/comfort. If you will be towing multiple times a week then you most likely won't...
view full answer... - Recommended Suspension Enhancement for 2018 Toyota Land CruiserI can see why this must be a bit frustrating, when the vehicle is supposed to already have the enhanced suspension features, but I do have something that can help you. You can add the Firestone Coil-Rite Air Helper Springs # F4164 to help add some leveling, and will fix the sway (jello like feeling you described) on your 2018 Toyota Land Cruiser. These are easy to install and they'll provide you with a certain level of customization since the air bags can be filled to provide as much or...
view full answer... - Is There A Confirmed Fitting Coil SumoSpring For A 2010 Toyota Sequoia SuperSprings doesn't currently have a confirmed fit for Coil SumoSprings for a 2010 Toyota Sequoia, but you can measure to see if one of their models will fit. While the vehicle is on the ground with weight on the coils you'll need to measure the distance between the coils in the center of the spring. Once we have this dimension we can look for a compatible match. If there isn't a compatible match then the only other option to stiffen up the coil springs would be to install Firestone...
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- Dimensions Of Firestone Coil Rite Air Helper Springs F4164 For 2015 Toyota SequoiaI would be happy to help, but I will need to know the inside dimensions of the new springs on your 2015 Toyota Sequoia to recommend the correct air helper springs for you. The Firestone Coil Rite Air Helper Springs # F4164 designed for the factory coil springs on your Sequoia measure 5-1/2" wide x 10" tall, so as long as that is the same or very close to the size of your new coil springs this would still be a great option. If you need a different spring just let me know. I included a...
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- Air Helper Springs for 2008 Toyota Sequoia LimitedI checked with Air Lift and their Air Lift 1000 # AL60786 are only confirmed to fit the SR5 model of the 2008 Toyota Sequoia. The Firestone Coil-Rite Air Helper Springs # F4164 will fit all models of the '08 Sequoia and will work for you. These springs fit inside your Sequoia's coil spring suspension and allows you to adjust the air pressure between 5 psi and 35 psi. Addtionally, the Firestone Union Tee # F3025-1 is available for the 1/4" hoses.
view full answer... - Correct Air Bags for a 2014 Toyota Sequoia LimitedIf you're looking for air bags for a 2014 Toyota Sequoia Limited I recommend the Firestone Coil-Rite Air Helper Springs part # F4164 which I confirmed with Firestone are an exact fit. These air bags will work great to provide extra support while you are towing or hauling. They are straightforward to install and don't require any modifications. I checked with AirLift as well and they haven't been able to confirm fit yet on a Limited model.
view full answer... - Can Coil-Rite Air Spring Be Mounted With Air Line At The Top On 2010 Toyota SequoiaI took a look at the installation instructions for the Firestone Coil-Rite Air Springs part # F4164 for your 2010 Toyota Sequoia. It does show that the air line should be at the bottom of the air spring when installed. I spoke with another Expert about the instructions and they told me that they called Firestone and was told that if you are able to install the Coil-Rite with the air line at the top it would not make a difference in the performance. If you have a kink in the line or...
view full answer... - Replacement Air Line Kit for Firestone Coil-Rite Air Helper Springs F4164Thank you for purchasing Firestone rear air bag kit # F4164 for your 2015 Toyota Sequoia that has coil springs. To replace the damaged air line you can use kit # FWR17600048 which is 18-feet of air line hose that is already equipped with the 1/4-inch threaded brass fittings. It can be tough to remove the air line from the fittings since their friction fit is intended to help prevent accidental disconnection.
view full answer... - Replacement Air Line and Fitting for the Firestone Coil-Rite Air Helper Springs Justin, sorry to hear about all of the issues you're having. I don't see any real remedy for the situation other than to just replace the air line with the Replacement 1/4" Hose with Fittings for Firestone Coil-Rite Air Helper Springs # FWR17600048 and the push to connect connector # F3079-1.
view full answer... - Can Firestone CoilRite Air Springs Be Used w/ Timbren Helper Springs on 2020 Toyota Land CruiserYou could add the Firestone # F4164 Coil-Rite Air Helper Springs to your existing setup, but I don't believe they'd do you a whole lot of good. When the Timbren # TTORLC2 Aeon springs are installed, you'll have about 1/2 to 1-1/2 inches of preload between the spring and the and the top surface of the axle tube. Once the suspension compresses by that amount to take up the preload, the Timbren springs will come into play. In other words, the only time the # F4164 Coil-Rite springs would...
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Thomas
11/11/2022
NOT GOOD!! After 1 year, system losing air, left airbag leaking. Tried contacting Firestone Dont waste your time, voice mail jail. eTrailer does not sell 1 replacement air bag! So, ended up buying a new set, to be installed next week.