7,500-lb Capacity. 7" Diameter LoadLifter 7500 XL Ultimate air springs upgrade your rear suspension with full-time load support. They level your vehicle, improve braking and ride comfort, and reduce the strain on your factory suspension. Great Prices for the best vehicle suspension from Air Lift. Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs - Rear Axle part number AL86KV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Air Lift Vehicle Suspension
- AL86KV
Highlights
Custom Fit for Your Vehicle: Mounts to existing attachment points
7,500-lb Load Support: Levels your truck and cuts rear sag for steadier, safer towing.
Smoother Ride Under Load: 7" air springs absorb shock and reduce sway for better control.
Protects Suspension Parts: Internal jounce bumper prevents damage if air pressure drops.
Adjustable Air Pressure: Fine-tune 5–100 psi to balance loads and keep handling consistent.
Long-Term Strength: 2-ply rubber and Zytel nylon endcaps hold up to heavy use without leaks.
Features to know about
Stay Level and Confident: Up to 7,500 lbs of Load-Leveling Support
When heavy trailers or bed loads make the rear sag, steering and braking can get unpredictable. The Air Lift LoadLifter 7500 XL Ultimate air helper springs add up to 7,500 lbs of load-leveling support to keep your truck level under serious weight. The 7" diameter double-bellows air springs have more volume than the LoadLifter 5000 series, giving greater leveling strength at lower pressures. This helps maintain safe headlight aim, steady tire contact, and confident handling no matter what you’re hauling.
Smooth Ride and Better Control: Internal Jounce Bumper and Full-Time Support
Big loads can make every bump hit harder, but these springs are built to handle it. Each bag includes an internal jounce bumper that cushions the suspension when running with low or no air pressure, preventing damage if you hit a dip with an underinflated setup. The system also reduces sway and absorbs road shock to keep the ride smooth and stable on highways or uneven roads.
Tune Your Air Pressure for Any Load: Adjustable from 5 psi to 100 psi
Every haul is different, so being able to fine-tune your suspension is key. The LoadLifter 7500 XL lets you adjust each spring manually between 5 psi and 100 psi for the exact support you need. Each spring can be inflated independently for side-to-side leveling when loads aren’t evenly distributed. Manual inflation valves and air lines are included and can be mounted for easy access, or you can add an optional compressor system with in-cab gauges for on-the-fly adjustments.
Built Tough for the Long Haul: Reinforced Rubber and Zytel Nylon Endcaps
Durability matters when your truck works hard day after day. These 2-ply, fabric-reinforced rubber air springs are protected top and bottom by Air Lift’s exclusive roll plates that increase load capacity and guard against damage. The endcaps are made from high-strength Zytel nylon that’s lighter and more corrosion resistant than steel, so they stand up to extreme conditions without adding unnecessary weight. Mounting brackets, hardware, and roll plates come included for a solid setup that’s built to last.
Specs
Weight and Capacity
Load-leveling capacity: up to 7,500 lbs
Pressure
Adjustable air pressure: 5 psi to 100 psi
Warranty
Lifetime warranty
60-Day satisfaction guarantee
57550 AirLift Load Lifter 7500 XL Air Bag Suspension Support System - Back Axle
7,500-lb Capacity. 7" Diameter LoadLifter 7500 XL Ultimate air springs upgrade your rear suspension with full-time load support. They level your vehicle, improve braking and ride comfort, and reduce the strain on your factory suspension.
by: Paul03/19/2026
I haul a Northern Lite 10-2 truck camper and the Airlift 7500 air bags are working out great. I have lower stabiloads that work great as well but the camper is significantly heavier on the right side so the airbags help level things up. Adding the on board compressor has been really helpful and I’m impressed with how quickly the compressor fills the bags. I have used it to help level the camper at campsites. As others have said the bolts at the top of the bags can be challenging to install so remove the spare tire and rear shocks to save yourself some trouble. I also made a tapered wooden dowel to make alignment of the bolts easier. Happy with my purchase.3503616
Watching the installation video provided by the web site will make your life easier as it gives great explanations and tips. I suggest having a few extra "pilot" drill bits on hand as I broke several due to not having a good right angle grill and the space between the frame rail and body was tight. A right-angle drill is a must have to complete the installation of the pump and controller. Installation was easy but I took my time and completed in 5 hrs. As for the product, all parts delivered in the kit. Wire Harness and Airline lengths were more than ample for a 2025 F350 Long box. Set up of controller and Phone app blue tooth was very easy. Very impressed with the phone app and response from the pump. I ran a few days without this due to shipping delays. This is a must have if you pull different trailers or more than once a week. Filling with an air compressor is a PAIN!3509454
This was a great upgrade for my 19 Ram 2500. Easily installed, had an issue with a leaking airline fitting but customer service addressed it and so far the bags have been operating on my truck for a year-and no complaints so far. Truck handles better when towing or cargo loaded into the bed. Highly recommend.3588854
Everything was perfect except FedEx added an additional day to deliver my parts causing additional problems.The product is amazing.3313142
by: Robert 05/09/2020
I added this to level my truck when hauling heavy loads like my truck camper. It took longer than expected to install, but the documentation was comprehensive. Plan on an all day installation with two people if you have never installed one before. I haven't driven the truck with the camper installed yet, but confident if will meet my needs.794267
by: Raymond05/07/2022
Had issue with the NPT threads leaking over time. Took them back out and Teflon doped and sealed. Maintains air pressure with no pressure decay for months now. etrailers prompt order shipment and packaging were excellent.1295191
by: Russell 12/14/2022
Easy install on my own. One year later they’re still working great. I haul a 10,000 lb tractor and Skid Steer as well as a 40’ GN full of hay, mostly. I typically leave the airbags at 50psi and that seems to do the trick. My dad also did some hotshot trucking for a few months and we love these airbags. A huge noticeable difference after airbags.1484565
by: Lars M05/18/2021
Sat in Sweden (Europe) and googled for Air Lift LoadLifter 7500 XL Air Helper Springs for my 2020 Ford F350 and found them on etrailer.com. Paid with Swedish credit card and sent them with UPS, 1 week later they were on my car in Sweden. Everything worked very smooth and quickly. Thanks etrailer.1040392
by: Ready 2 Roll RV Services04/09/2024
I have not towed anything yet. I pull a 42' 5th wheel RV and from what everyone tells me, these bags make a huge difference. I'm full time living in an RV so I don't have a shop or all the tools that would have made this a bit more easy. First of all, unless you have a lot of time and patience, this is a tough job for one person. Do yourself a favor and get an air socket wrench. This would cut down on install time considerably. I don't remember the size, but if you have a dually like I do, have a set of ratcheting box end wrenches. Thankfully, the guy helping me had a set and I don't know how we would have done one of the brackets without it. Watch some youtube videos for some helpful hints. Go to the manufacturers website for videos. Read through the directions a couple times first. Especially pay attention to the specifics of Left and Right, and sway bar or no sway bar. The directions aren't horrible, but they aren't great either. Divide your hardware, put them in zip lock bags and label them, using the parts list in the front of the book. Also, have a breaker bar on hand. My buddy and I had never installed these before. Neither of us are certified mechanics, but have a pretty good understanding of mechanics and we know how to turn a wrench. This install took us about 6 hours (note, this does not include the hour or so that I spent putting the bags together on a previous day). To raise and lower, we used a bottle jack under the rear hitch. You don't need to raise it off the ground, but you need to get it as high as you can without going off the ground. I will try to come back and add my 2 cents on the performance aspect after we head out with the RV. As always, etrailer was very helpful and I had a speedy delivery.1761842
by: Forrest 04/29/2024
I installed the air lift system and could not be happier. The truck now rides very smooth even with a heavy load. Great product addition to my truck.1775627
Forrest M.
4/30/2025
We have the airlift on my 2023 F350. We pull a 8,000lb. 5th wheel and it really helps improve the ride on rough roads or bridge over passes. Could not be happier. I generally run around 40 psi in both sides.
by: David08/14/2025
I have a couple thousand miles on them now and happy to have them. I put a compressor and tank onboard. I have an in cab gauge with controls to inflate and deflate. All is working great. There is a lot of finagling to get the bags into place but the instructions and videos we found made sure it was a complete job.3391166
Hey Greg, thanks for reaching out. We do have an air bag kit and compressor for your 2022 Ford F-350 dually. For the air bag kit I recommend the Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs # AL86KV. This kit is made especially for the F350 dually models. Also, the brackets are made to be compatible with an in-bed gooseneck or 5th wheel hitch, so your B&W companion hitch will not be a problem.
For a compressor what I recommend is the Air Lift WirelessONE Suspension System for... view full answer...
Hello Luke, thanks for reaching out. Since you have an F-350 I do like the Load Lifter 7500 kit. The springs are going to be more robust and you will not need to add as much PSI to get the same level of support.
Both the # AL55FJ and # AL86KV kits you mentioned are for the 2020 Ford F-350. The difference is the # AL55FJ is for single rear wheel models, while the # AL86KV is for models with dual rear wheels only.
I also recommend adding an onboard compressor like the Air Lift WirelessAIR... view full answer...
Hello Kirt, thanks for reaching out. Unfortunately, the air bag kit from a 2020 F350 will not carry over to a 2023 model. There were a few design changes after 2022, so the 2023 model will require a whole new kit.
For the 2023 F350 I recommend the AirLift # AL89DQ which are the heavy-duty 7,500 lb capacity air bags. Keep in mind this kit will only fit models with single rear wheels. If you have a dually you will need the # AL83DQ kit instead.
If you wish to add an onboard compressor... view full answer...
Yes, the factory bump stops will need to be removed to install the Air Lift LoadLifter 7500 XL Air Helper Springs # AL86KV on your 2020 Ford F-350. view full answer...
No, they do not Joey but I have a set that does. They are the Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs item # AL86KV. These are custom fit for the 2022 Ford F-350 duallys. They have a massive 7,500 lbs load leveling capacity and come with custom fit brackets.
The Air Lift LoadLifter 7500 XL item # AL55FJ fits the 2022 Ford F-350 but only the single rear wheel models.
I recommend adding the Air Lift WirelessAIR Compressor System item # AL74000EZ to your truck. This onboard... view full answer...
Yes, it will Art! Actually, the Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs item # AL86KV will only work with the dually models of the 2022 Ford F-350. These were specifically designed for just that application according to Air Lift.
I recommend adding the Air Lift WirelessAIR Compressor System item # AL74000EZ to your truck. This onboard compressor will allow you to adjust the PSI in your air bags from your phone.
What are you hauling with your truck? view full answer...
Hello Sivan, thanks for getting in touch. Adding air bags is definitely a good call if you are unhappy with your Timbrens. The air bags will allow you to fine-tune the suspension to the perfect mix of ride leveling and ride quality. Then you can also retain the factory ride when you aren't hauling your camper.
The 7500 kit is definitely the way to go, and for that I recommend the following:
- Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs - Rear Axle # AL86KV
This is made specifically... view full answer...
Hey Joseph, thanks for all of the info you listed from your truck. Based on that the correct Air Lift 7500 kit would be the part # AL86KV which was designed for 4WD dually models like what you have.
Are you also wanting a compressor kit? view full answer...
The Air Lift LoadLifter 7500 XL Air Helper Springs item # AL86KV are designed to work with dually F-350's only. They will not fit the Tremor models or single rear wheel trucks.
The Air Lift LoadLifter 7500 XL Air Helper Springs item # AL55FJ are designed for single rear wheel F-350's.
Both of these air bag kits are confirmed to fit the 2021 Ford F-350. These systems have a 7,500 lbs weight capacity and are compatible with in bed hitches.
I have linked a couple of installation videos... view full answer...
Thanks for reaching out!
For your application I recommend using the Air Lift LoadLifter 7500 XL Air Helper Springs # AL86KV. So far (January 2023) AirLift hasn't confirmed the fit which is why we don't have it listed.
With that being said, I checked with Firestone and their Ride-Rite air bag kit fits so, logically, the AirLift kit will fit as well and it's just a matter of time before they are able to list it as a fit.
I also recommend adding an air compressor system so you're able to... view full answer...
Going with a compressor is a really smart idea since you haul a trailer every day, and can get you set up with the Air Lift 7500 XL air bags as well as a heavy-duty 150 psi compressor with air tank for your 2022 Ford F-350 Super Duty. So here is exactly what you will need:
- Air Lift LoadLifter 7500 XL Air Helper Springs # AL86KV
- Air Command I Xtreme Duty Compressor # F2543
Those air bags are the correct fit for your dually, and the Air Command I gives you a compressor with a 150 psi... view full answer...
The Air Lift LoadLifter 7500 XL Air Helper Springs part # AL86KV are what I recommend for a 2022 Ford F-350 DRW. This is a heavy duty kit with 7,500 lb rating that will be perfect for the constant load of a truck bed camper. It will help reduce sag as well as other issues from the heavy load such as sloppy steering response. The air bags are a direct bolt-on fit with no modifications needed. view full answer...
Yes, removing items from the front of the trailer or rear of the vehicle will reduce weight over the rear axle but this would still not allow you to exceed any of the manufacturer's payload or GAWR ratings if that is the goal. These figures will remain unchanged from the manufacturer. That said, if you're having issues with a heavy pin weight we do have options to help mitigate these. I recommend the Air Lift LoadLifter 7500 XL Air Helper Springs part # AL86KV for DRW or part # AL55FJ or... view full answer...
The Air Lift LoadLifter 7500 XL Air Helper Springs # AL55FJ are a confirmed fit for your 2020 Ford F-350 Tremor. I believe the fitment issues that they referred to were with the Kit # AL86KV that does not fit the Tremor. You should have no issues installing the # AL55FJ on your F-350.
I do recommend using the Air Lift WirelessAIR Compressor System # AL74000EZ to control the air pressure in each bag. You can set each bag to an individual pressure for uneven loads with either the included... view full answer...
As your 2022 Ford F-350 Diesel has the Tremor package, I do recommend going with a Firestone kit. These are American made and will have no problems with the Tremor package on your truck. With that out of the way, let's get into the options (both of these are for single rear wheel trucks, but I do have the dually options at the bottom as well).
I recommend going with the Firestone Red Label Air Bag Kit # F95FV. This kit boasts a 7,500lb capacity that is adjustable by adjusting the air pressure... view full answer...
The correct Air Lift LoadLifter 7500 XL Air Helper Springs part number for your 2022 Ford F-350 Dually is # AL86KV. However, I highly recommend the Firestone Ride-Rite Air Helper Springs - Rear Axle # F35FV over the Air Lift.
The construction and quality of the # F35FV is much better overall, and it has a 5,000 lb load-leveling capacity which is more than enough. These feature four layers of reinforced rubber to ensure durability and enhance load support. The rubber springs are also attached... view full answer...
I can certainly point you in the right direction. I agree with you that the 2,800 sumo springs # SSR-127-54 will not be enough for the kind of weight you are pulling with your 2022 Ford F-350. They may help slightly with sagging, but you would be overloading the springs and that is never recommended.
A Timbren # TFR350SDJ would be much more appropriate for this application. These are 8,600 lb capacity rubber springs which will absolutely help eliminate sagging, and improve your ride quality... view full answer...
The air bag kit I recommend for a 2020 Ford F-350 Dually FX4 is the Firestone Ride-Rite Air Helper Springs part # F35FV. I recommend Firestone over Air Lift as the air bags have a better construction (crimp rolled vs band clamp) and the kits have fewer components so they are easier to install. The kit will also work on models with an on-bed hitch.
If you want to use Air Lift, the Air Lift LoadLifter 7500 XL Air Helper Springs part # AL86KV which has a higher 7,500 lb capacity is our only... view full answer...
The Air Lift systems that fit your 2022 Ford F-350 are single rear and dual rear wheel specific so for your dually you need the following kit:
- Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs # AL86KV
I also recommend checking out a compressor system like the Air Lift WirelessAIR Suspension System # AL27DQ because it allows you to monitor and adjust your air springs on the fly. This is a dual path system so you'll be able to adjust the psi in each bag individually to accommodate... view full answer...
The application for each air helper spring kit is the difference.
The difference between the two is that the Air Lift 57552 which we carry as part # AL55FJ is for single rear wheel models while the 57550 which we offer as # AL86KV is for dual rear wheel model 2020 F-350 trucks. For your SRW model, you'd want to use # AL55FJ.
You might also be interested in an on-board compressor kit, part # AL25856 that would allow you to adjust the pressure in the system from the truck cab with the push... view full answer...
If you are wanting a heavy duty Air Lift system, you will want the LoadLifter 7500 XL Air Helper Springs # AL57538. These will have no problem fitting your 2012 Chevy Silverado 3500 with dual rear wheels and the hitch in the bed of your truck. They are rated up to 7,500 pounds of load leveling capacity at 100 psi and are American made.
As to these not having an internal jounce, I did contact Air Lift and they are looking to add the internal jounces to the 7,500 XL in the future, but they... view full answer...
The correct Air Lift LoadLifter 7500 XL Air Helper Springs for your 2022 Ram 3500 is part # AL57531 - this will work as long as you don't have a factory air suspension system. I also recommend picking up an air compressor kit like the Air Lift Load Controller System # AL25856 so you can monitor and adjust the air in both bags as needed and you don't have to plan out any stops just to mess with your air bags.
The parts # AL57575 and # AL86KV you referenced are essentially the same thing... view full answer...
You are able to use the TorkLift StableLoad Suspension Upgrade # TLA7200 with the Air Lift LoadLifter 7500 XL Air Helper Springs # AL86KV on your 2021 Ford F-350 Dually 4x4. You must have the upper overload spring on your leaf springs to use the StableLoad. The reason the factory bump stops must be removed for the Air Lift Springs is they mount in place of the bump stop. The StableLoad mounts on the frame towards the end of the spring and will not interfere with the mounting of the air... view full answer...
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Forrest M.
4/30/2025
We have the airlift on my 2023 F350. We pull a 8,000lb. 5th wheel and it really helps improve the ride on rough roads or bridge over passes. Could not be happier. I generally run around 40 psi in both sides.