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Firestone Ride-Rite 4135 Coil-Rite; Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Number W237604135;

4.2 4.2 out of 5 stars 71 ratings
$137.84
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Purchase options and add-ons

  • 1998-2012 > Toyota > 4Runner
  • ** NOTE: PRODUCT IMAGE MAY NOT BE VEHICLE SPECIFIC
  • Do not use on lifted vehicles
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Product Description

Firestone Coil-Rite Air Helper Springs Firestone air helper springs are designed to fit inside existing coil spring suspensions, creating a variable rate spring. These air helper springs are made of durable, elastic polyurethane providing years of comfort and stability to your vehicle. Coil-Rite air helper springs provide extra support for coil springs in cars, minivans, vans, light trucks, RVs and SUVs. The complete adjustability of these air helper springs will level your vehicle, provide a smoother ride, more effective braking and handling, even under heavy loading and adverse road conditions. Firestone's Coil-Rite air helper springs enable adjustment for varying loads and road conditions by inflating or deflating the air helper springs. Spring performance can be altered as easily as inflating a tire. The air springs will support 500-1000 lbs per set.(Note: Do not exceed the vehicle's recommended Gross Vehicle Weight Rating) Basic Kit includes everything for a quick installation: 2 Air springs Supports Hardware Air line Separate inflation valves for manual inflation Average Installation time 1 hour Features and Benefits of Coil-Rite air helper springs and air bag kits Increase Vehicle Stability Improve steering and balance Improve braking effectiveness Prevent bottoming out Maintain a level vehicle Keep headlights aimed on the road Reduce tire wear Firestone Limited Lifetime Air Spring Warranty Firestone Industrial Products Company LLC ("Firestone") warrants that its Ride Rite Air Spring Assembly will perform according to the manufacturer's specifications for as long as the vehicle on which the system was originally installed is owned by the original retail purchaser. This limited warranty does not include installation or other service charges for replacement. Warranty Period The Air Spring is warranted for as long as the original purchaser owns the vehicle on 2 Year / 200,000 mile warranty.

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Firestone Ride-Rite 4135 Coil-Rite; Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Number W237604135;

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Firestone Ride-Rite 4135 Coil-Rite; Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Number W237604135;
Firestone Ride-Rite 4135 Coil-Rite; Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Number W237604135;
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Price$137.84$124.51$124.46$144.12
Delivery
Get it May 10 - 14
Get it May 8 - 9
Get it as soon as Sunday, May 12
Get it May 10 - 15
Customer Ratings
4.24.2 out of 5 stars71
4.24.2 out of 5 stars98
4.24.2 out of 5 stars124
4.14.1 out of 5 stars33
Easy to install
4.3
—
4.7
—
Value for money
4.0
—
3.5
—
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Customer reviews

4.2 out of 5 stars
4.2 out of 5
71 global ratings

Customers say

Customers like the performance, ease of installation, quality, value, and sagging of the air bag suspension kit. They mention that it works well, is easy to install, and is well made. Some appreciate the sway stability.

AI-generated from the text of customer reviews

13 customers mention13 positive0 negative

Customers are satisfied with the performance of the airbags. They say it works well, levels the vehicle, and improves the ride.

"Added this to a 2008 4runner, very pleased with the results...." Read more

"...It does allow you to reduce rear sag so you can ride more comfortably and safely though and believe me for the price of this kit it was money well..." Read more

"...amount...both of my vehicles are set up this way and they handle fantastic! Firestone does not include this T for a reason!" Read more

"...when not loaded but I have left mine inflated because it improved the ride comfort level so much...." Read more

11 customers mention11 positive0 negative

Customers find the installation of the auto accessory to be easy. They mention that the directions are easy to follow and well written. They also mention that they were able to install the product without dropping springs.

"...Was able to install easily without dropping springs and recommend if you are wanting to slightly raise the rear suspension or level it out from..." Read more

"...The install is pretty straight forward. The most difficult part is finding where you are going to mount the valves...." Read more

"These were an absolute game changer for my 2000 4Runner! Very easy to install in my driveway with basic hand tools...." Read more

"I am very pleased with the quality of this product. The directions were easy to follow and well written...." Read more

11 customers mention11 positive0 negative

Customers are satisfied with the quality of the auto accessory. They mention that it is a good product, well made, and amazing. The bags themselves appear well made and hold up great in rough terrain. They also say that it greatly improved ride quality and that it handles heavy loads.

"...They are holding 20psi with no problems. The bags themselves appear well made, and I like that the bags have push to connect fittings as opposed to..." Read more

"...Bags are nice and thick material, hose is more than long enough with extra to spare, and everything necessary was included in the kit...." Read more

"...I was loaded down on a long West Texas hunting trip. They held up great in rough terrain." Read more

"Absolutely amazing product for an unbelievable price! I bought these several months ago and finally got around to installing them on my 16' 4Runner...." Read more

8 customers mention8 positive0 negative

Customers appreciate the value of the auto accessory. They say it's a very inexpensive way to beef up your suspension.

"...and safely though and believe me for the price of this kit it was money well spent so I don't have a grouchy spouse and child to contend with when..." Read more

"...Overall I would recommend this product to anyone, very inexpensive way to beef up your suspension!" Read more

"Absolutely amazing product for an unbelievable price! I bought these several months ago and finally got around to installing them on my 16' 4Runner...." Read more

"...This definitely solved that problem for a reasonable price!" Read more

6 customers mention6 positive0 negative

Customers like the sagging of the auto accessory. They mention it's easy to install and helps to level the rig and prevent a saggy back-end. Some say that it removes rear swag under hitch load and that it makes all of the'sagging go away' in the back of their truck when carrying a load.

"...It does allow you to reduce rear sag so you can ride more comfortably and safely though and believe me for the price of this kit it was money well..." Read more

"...am very pleased with the results helping to level the rig and prevent a saggy back-end...." Read more

"...Install was straightforward. removed rear sag under hitch load. I did have a need to contact cust support. EXCELLENT. They resolvedthe issue...." Read more

"...back from a trip with a lot of weight in the back and had no sagging on the rear end of the vehicle." Read more

4 customers mention4 positive0 negative

Customers like the sway stability of the auto accessory. They mention that it works well stiffening up the back, reducing swivel and stopping the droop.

"They seem to work well stiffening up the back, reducing sway, but also make ride a little bit rougher...." Read more

"...gone!...if not towing all you need is 5lbs of pressure and gives great sway stability as well!Great Buy" Read more

"Stops the sag..." Read more

"Leveled my truck with a load and made it ride much more stable..." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the air hold of the auto accessory. They mention that it holds air very well and can hold 20 psi with no problems.

"...They are holding 20psi with no problems...." Read more

"...Holds air well and does improve the ride." Read more

"Works great on my 98 Toyota 4Runner SR5... Holds air very well" Read more

Got a saggy rear end?
5 Stars
Got a saggy rear end?
Used this kit to lift my 98 4Runner when towing my camper and am very pleased with the results helping to level the rig and prevent a saggy back-end. Each airbag is rated for 500-1k lbs of weight, inflation is recommended between 5-35psi. I also bought the "T" union piece so you can inflate them at the same time, definitely worth it. Overall I would recommend this product to anyone, very inexpensive way to beef up your suspension!
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Top reviews from the United States

Deena
5.0 out of 5 stars Good product and quick to arrive
Reviewed in the United States on March 23, 2022
Verified Purchase
Added this to a 2008 4runner, very pleased with the results. Was able to install easily without dropping springs and recommend if you are wanting to slightly raise the rear suspension or level it out from increased weight.

Less than 1/2 the price of rear spring replacements, hope they hold up for the long term.
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Dave
4.0 out of 5 stars Nice kit, but check the application when using aftermarket springs
Reviewed in the United States on July 3, 2015
Verified Purchase
Nothing wrong with these, but not the best for my application. I had air lift bags on my stock 4Runner before I upgraded to toytec super flex coils in the rear. The gauge of the spring wire is larger (ok maybe gauge is lower, but the wires are thicker) so the old springs didn't fit anymore. I contacted toytec, and they recommended this kit, but the air bags are probably a little too small od for this spring application. They needed 10psi before the bag fit snugly within the coil. They are holding 20psi with no problems. The bags themselves appear well made, and I like that the bags have push to connect fittings as opposed to the air lift bags I used to have which used barbed fittings.
4 people found this helpful
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Shawn L
5.0 out of 5 stars Makes road trips that much easier
Reviewed in the United States on November 1, 2016
Verified Purchase
I installed these in my 2006 Toyota 4Runner because I tow a 3800# camper about once a month and past experience taught me these help make the road trips more comfortable. It took me half a day to get the kit fully installed but having owned an Airlift 1000 kit on a previous vehicle I can say I am much happier with the fittings on this kit. Push the hose into the fitting as deep as it will go and then pull firmly and done. No leaks and that is a big deal. I do wish there was an included T connector so I didn't have to run two separate valves but that is just a preference and barely worth complaining about. Bags are nice and thick material, hose is more than long enough with extra to spare, and everything necessary was included in the kit.

My first trip out loaded up with the family I had only 10 PSI per bag because there was no sag in the suspension and I figured I didn't need the kit until we got about halfway to our destination. You could feel the road's imperfections clearly so I pulled over and aired the bags up to 20 PSI (30 PSI max) and that made all the difference. I keep it at 10 PSI for unloaded driving because it isn't recommended to deflate the bags and at this pressure they have plenty of wiggle room in the coils but when it comes time for hooking up the camper it takes me all of 1 minute to inflate both bags to 20 PSI and tow off on another adventure in comfort.

No, this kit does not add a lift, increase the max towing capacity of your vehicle, or replace the need for a weight distribution hitch. It does allow you to reduce rear sag so you can ride more comfortably and safely though and believe me for the price of this kit it was money well spent so I don't have a grouchy spouse and child to contend with when going camping.
15 people found this helpful
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MaryMoon
5.0 out of 5 stars These are a win-win.
Reviewed in the United States on July 12, 2019
Verified Purchase
With these air bags, I can have a nice ride when we are just cruising around town, and I can load up the 4Runner and tow our trailer while camping. The install is pretty straight forward. The most difficult part is finding where you are going to mount the valves. I made a bracket which uses an existing bumper bolt. No drilling whatsoever.

***A quick note about using a T connector on the airlines. A lot of people do this so that they only have one valve to fill. The air goes to both sides evenly.
But look...if you go around a left hand corner, the body rolls to the right. This pushes down on the right side air bag. If you have a T installed, the air is pushed out of the right side bag and it goes into the left side air bag, pushing up on the left. This makes body roll to the right even more and is really unsafe...especially in a panic situation. Don’t do it!! With two independent air bags, the body rolls a predictable amount...both of my vehicles are set up this way and they handle fantastic! Firestone does not include this T for a reason!
22 people found this helpful
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Dennis J Johnes
4.0 out of 5 stars It does work.
Reviewed in the United States on August 8, 2019
Verified Purchase
Different than what I thought. The bag doesn’t hold weight, it just inflates inside the spring to keep it from compressing.
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chenman
5.0 out of 5 stars Got a saggy rear end?
Reviewed in the United States on July 14, 2018
Verified Purchase
Used this kit to lift my 98 4Runner when towing my camper and am very pleased with the results helping to level the rig and prevent a saggy back-end. Each airbag is rated for 500-1k lbs of weight, inflation is recommended between 5-35psi. I also bought the "T" union piece so you can inflate them at the same time, definitely worth it. Overall I would recommend this product to anyone, very inexpensive way to beef up your suspension!
Customer image
chenman
5.0 out of 5 stars Got a saggy rear end?
Reviewed in the United States on July 14, 2018
Used this kit to lift my 98 4Runner when towing my camper and am very pleased with the results helping to level the rig and prevent a saggy back-end. Each airbag is rated for 500-1k lbs of weight, inflation is recommended between 5-35psi. I also bought the "T" union piece so you can inflate them at the same time, definitely worth it. Overall I would recommend this product to anyone, very inexpensive way to beef up your suspension!
Images in this review
Customer image
Customer image
2 people found this helpful
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Joel Jay Villarreal
5.0 out of 5 stars Awesome product! Must have for 4Runner!
Reviewed in the United States on November 30, 2018
Verified Purchase
These were an absolute game changer for my 2000 4Runner! Very easy to install in my driveway with basic hand tools. I know Firestone doesn’t recommend inflating them when not loaded but I have left mine inflated because it improved the ride comfort level so much. I was loaded down on a long West Texas hunting trip. They held up great in rough terrain.
Customer image
Joel Jay Villarreal
5.0 out of 5 stars Awesome product! Must have for 4Runner!
Reviewed in the United States on November 30, 2018
These were an absolute game changer for my 2000 4Runner! Very easy to install in my driveway with basic hand tools. I know Firestone doesn’t recommend inflating them when not loaded but I have left mine inflated because it improved the ride comfort level so much. I was loaded down on a long West Texas hunting trip. They held up great in rough terrain.
Images in this review
Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer image
5 people found this helpful
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Bryan D Hayes
1.0 out of 5 stars They don’t stand behind their product
Reviewed in the United States on May 20, 2023
I’ve had problems with my Ride Rite twice. They fixed it once, the second time they said they would not fix it or upgrade to the newest system. That’s what they told my mechanic. I will never suggest their product to anybody. I’m a business owner and I fix things for free, because I stand behind my product & workmanship.
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