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  1. Vehicle Suspension
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  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Heavy Duty
Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle
Air Lift

Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle

Part Number: AL88391
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$537.07
Retail:$952.68
You Save: $415.61
Vehicle Suspension

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5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure. Great Prices for the best vehicle suspension from Air Lift. Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle part number AL88391 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Air Lift Vehicle Suspension - AL88391

  • Air Springs
  • Towing/Load Leveling
  • Air Lift
  • Rear Axle Suspension Enhancement
  • Heavy Duty
  • Suspension Only

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.


Features:

  • Hybrid spring system combines the adjustability of air springs with the reliability of jounce-style springs
  • Air bags reduce the strain on your rear suspension, increase safety, and compensate for uneven loads
    • Level your vehicle front to back and help maintain safe headlight aim
    • Adjust independently for side-to-side leveling of off-center loads
    • Improve steering and braking performance
  • Jounce spring inside each air spring helps to improve ride comfort, reduce sway, and help with cornering
    • Engages at lower air pressures to better absorb road shock and minimize bottoming out
    • Provides support progressively - the more you load the springs, the stiffer they become
    • Lets you temporarily carry a load with zero air pressure in your springs
  • Quality construction for long-lasting spring life
    • 2-Ply, fabric-reinforced rubber air springs are durable
    • Air Lift's exclusive upper and lower roll plates protect air springs from damage, extending the life of the suspension system
    • High-strength Zytel nylon endcaps are lighter, stronger, and more corrosion resistant than steel
    • Urethane internal jounces require no maintenance and work well in hot or cold temperatures
  • Designed for heavy-duty applications such as 1/2-ton, 3/4-ton, and 1-ton pickup trucks, motor homes, and commercial trucks
  • Mounting brackets and hardware are included for installation
  • Manual inflation valves and air lines are included
    • Manual valves are typically mounted on bumper for easy access
    • Compressor system with in-cab gauges (sold separately) can be added to monitor and automatically adjust air pressure
  • Made in the USA


Specs:

  • Load-leveling capacity: up to 5,000 lbs
    • LoadLifter 5000 Ultimate springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.
  • Adjustable air pressure: 5 psi - 100 psi
  • Lifetime warranty
  • 60-Day satisfaction guarantee


Note: When servicing your truck with Air Lift air springs installed, if the truck is lifted by the frame, the air must be let out of the springs. And if the rear of the truck is lifted during service, then it must be supported by jack stands to avoid damage to the air springs.


Get the Best of Both Springs

The air springs and jounce springs in this system work together to give you the best ride whether your truck is loaded or unloaded. Air Lift's LoadLifter 5000 Ultimate air springs have internal urethane foam jounces that protect the air springs and provide added ride comfort when your air pressure is low. The jounces also allow you to temporarily carry a load if the air springs lose air pressure. This gives your 1/2-ton, 3/4-ton, or 1-ton pickup, motor home, or commercial truck air springs that are easier to maintain.


Air Springs Level Your Load

Carrying heavy cargo in your truck bed or trailer puts extra stress on your truck. Your brakes erode faster, your tires wear unevenly, and handling suffers severely. When towing, you might also experience excessive sway, bottoming out, and even inaccurate and unsafe headlight aim.


By pairing your existing suspension with LoadLifter 5000 Ultimate air springs, you can seriously beef up your suspension, ensure equal load distribution, and get the support you need. The springs provide up to 5,000 lbs of load-leveling capacity (depending on the weight-carrying capacity of your vehicle) and distribute the weight of your payload to all 4 wheels. As a result, the stress on your factory suspension is significantly reduced. LoadLifter's air bags are adjustable from 5 to 100 psi for precise support, and they can be inflated equally for front-to-back leveling or independently of one another for side-to-side leveling.


The air springs are made of high-quality, 2-ply, fabric-reinforced rubber. Most air bags lose air at the ends where the bag is enclosed with steel caps. These caps can rust and corrode over time, creating small holes. But the endcaps on Air Lift air bags are fashioned from corrosion-proof Zytel nylon, a material that is both stronger and lighter than steel, ensuring that the air bags won't lose air.


Roll plates on Air Lift 5000 Ultimate air spring

The air bags also have Air Lift's exclusive roll plates, which protect the air springs and beef up their load capacity. These sturdy plates help guard the springs from moving parts under your vehicle that might puncture the air bags. The plates also provide a larger surface area for each spring to roll on. The extra surface area gives you a higher spring rate at a lower air pressure, resulting in a better ride.


Built-In Jounce Springs Add Control and Comfort

Air Lift 5000 Ultimate air spring with jounce spring inside

The closed-cell urethane jounce spring inside each air spring gives you a more stable, comfortable ride. Each jounce acts as an overload spring and engages when your current air pressure level isn't enough to support your load. So on a rough road, the springs will kick in if needed to absorb bumps and shocks and help you to avoid bottoming out. When the jounces support a load, they adjust progressively - the more weight you pile on, the stiffer they become. The urethane material engages more smoothly than rubber jounces so you get a less jerky ride.


Because these jounces are taller than your factory jounce bumpers, they engage sooner than your factory jounces would to provide better support. And if the LoadLifter 5000 Ultimate air springs have insufficient or zero air pressure, the internal jounces will help to temporarily support your suspension and protect it from damage until you can repair or adjust the air spring system.


Easy Installation

This system installs with the included brackets and hardware. Just mount the springs, inflate them, and ride. To inflate the LoadLifter springs, you just have to pump in air through the inflation valves. A line kit is included with the springs so that you can install the manual inflation valves (one for each spring). These are typically mounted on the bumper but can be installed anywhere that is easily accessible. If you want to make the springs even easier to use, you can get a compressor and gauge system (sold separately) that allows you to monitor and adjust the springs from the cab of your truck.


Lifetime Warranty

Along with a lifetime warranty that has no mileage restrictions, Air Lift offers a 60-day satisfaction guarantee. Just install and use LoadLifter 5000 Ultimate springs for 60 days, and if you are not satisfied at the end of this time, you can remove and return them for a full refund.



88391 AirLift Load Lifter 5000 Ultimate Air Bags with Internal Jounce Bumpers - Back Axle

Installation Details AL88391 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

1352 reviews
5 Stars
(1116)
4 Stars
(152)
3 Stars
(27)
2 Stars
(19)
1 Star
(38)
5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

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See what our Experts say about this Air Lift Vehicle Suspension

  • What Complete Air Bags Can I Control from the Cab of My 2021 Ford F-350 Super Duty with In-Bed Hitch
    Since you are transporting a fifth-wheel trailer, I assume you are looking for rear-axle air bags. We only carry Firestone-brand Ride Rite air bags that will work with 4-wheel drive models of 2021 Ford F-350 Super Duties with an in-bed hitch. That is the Firestone Rebel # F95FV. Apart from the 7,500-pound load-leveling weight capacity, the springs help prevent sagging while towing. They are also 100% made in the U.S.A. As far as compatibility, these air bags work with a fifth-wheel hitch...
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    With you slide in truck camper causing the passenger side of your 2022 Ford F-350 Dually 2WD to sag more than the drivers side, the Air Lift LoadLifter 5000 Ultimate Air Helper Springs # AL88391 are going to be the best option for you. The air bag helper springs will allow you to use different air pressures in each bag to give you the most level ride possible. The Air Lift WirelessAIR Compressor System # AL74000EZ will allow you to adjust the air pressure to each spring from either the...
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  • Recommended Airbags For A 2020 Ford F-250 Super Duty With Factory Prep Package
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  • AirLift LoadLifter 5000 Rear Axle Air Bag Kits for 2017 Ford F-350
    The AirLift LoadLifter 5000 air spring kits that fit the 2016 Ford F-250 are parts # AL88396, and # AL57396 for 4WD versions and parts # AL88395 and # AL57395 for 2WD. All are shown on one of the linked pages. The other linked page shows the AirLIft kits that fit the 2017 F-350. None of these is a common fit between the two trucks. Some of the kits for the F-350 are combination springs - they are both jounce springs and air springs in one - such as kits # AL88399 (4WD) and # AL88391 (2WD)....
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  • Air Lift Air Bag Helper Springs Compatibility With SuperSprings On a 2022 Ford F-250 With Camper
    Yes, you will be able to install one of the Air Lift LoadLifter 5000 kits with the SuperSprings Custom Suspension Stabilizer # SSA25 on your 2022 Ford F-250. A 4 wheel drive truck will use the Kit # AL35FJ while a 2 wheel drive will use Kit # AL88391. The Air Lift WirelessAIR Compressor System # AL74000EZ will allow you to easily control the air pressure in each air bag from either the included wireless remote or your smartphone using the Air Lift app. This compressor has a smart manifold...
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  • What is Difference Between Air Lift Load Lifters AL88391 and AL88399 for 2018 Ford F-250
    Since you have a 2 wheel drive version of the 2018 Ford F-250 the correct Air Lift LoadLifter 5000 is the part # AL88391 as the part # AL88399 is for the 4 wheel drive versions. Both of these are compatible with in-bed hitches like your Turnoverball as well.
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  • Air Lift Airbags and Compressor Kit Compatible with a 2018 Ford F-350
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    If you are having some squat issues even with the Timbrens then upgrading to air bags is a good idea as they will allow you to set the best air pressure for your situation to help with the squat you have. The best option for air bags that fit your 2018 Ford F-250 2WD and are compatible with your set up are from Air Lift: - Air Lift LoadLifter 5000 Ultimate Air Helper Springs # AL88391 These Air Lift air bags are designed for heavier-duty applications and their 5,000 lb capacity is the...
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  • Can I Use Airbag on a 2020 Ford F-250 2WD with the Factory Prep Package
    The only airbag kit we have that will fit your 2020 Ford F-250 is the Air Lift LoadLifter 5000 Air Helper Springs part # AL57391 for standard or part # AL88391 for ultimate. The ultimate version has an internal jounce spring which lets you temporarily carry a load with zero air pressure in your springs. The Firestone Ride-Rite Air Helper Springs part # F95FV will not work for you because the airbag installs on the outside of the frame rail which is currently occupied by the factory prep...
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  • What are the Highest Load-Leveling Capacity Rear Air Bags for My 2022 Ford F-250 2x4?
    For the highest capacity rear air bags for your 2022 Ford F-250 Super Duty 2-wheel drive, we have two options: the Air Lift LoadLifter 5000 # AL57391 and the LoadLifter 5000 Ultimate # AL88391. Both of these systems offer your vehicle 5,000 pounds of load-leveling capacity, which is the highest capacity we have. Both of these models are compatible with your 2-wheel drive. The difference between these two systems is that the Ultimate version has an upgraded black-powder coated roll plates...
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  • Air Suspension and Wireless Controlled Compressor Recommendation for 2020 Ford F-250
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  • Recommended Air Lift Kit for a 2 Wheel Drive 2022 Ford F-250 With the Towing Prep Package
    For your 2 wheel drive 2022 Ford F-250 with the factory prep package, you will need the Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle # AL88391. There will be no drilling required for the installation and this system is compatible with in bed hitches. These have a load-leveling capacity of up to 5,000 pounds at 100 psi, but can then also be aired down to 5 psi, getting you back to as close to your stock ride as possible. A potential add-on...
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  • Recommended Air Helper Spring Kit For 2018 Ford F-250 Towing 35' Trailer
    I would be happy to recommend an air helper spring kit for your 2018 Ford F-250 with the 6.2L engine. If your F-250 is a 4WD model I highly recommend the Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers # AL88399 which offer 5000lbs of load leveling capacity and have an internal jounce bumper that will support the load if there is ever a failure with the bag. If you have a 2WD model instead you would need the # AL88391 instead. Both of these kits will...
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  • Recommended Air Bag Kit for a 2018 Ford F-350 Dually with B&W Gooseneck Hitch Installed
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  • Air Helper Spring Suspension Recommendation for 2017 Ford F250 2WD
    The primary purpose of the internal jounce bumpers of the Air Lift # AL88391 LoadLifter Ultimate Air helper springs is to provide a failsafe if the system develops a leak and you lose pressure while you're towing or hauling. This is pretty important, because the factory jounce bumpers are removed to install the air helper springs. If under a heavy load, and the system loses pressure it's possible that the suspension could bottom out which is harmful for the air bags as well as the vehicle. The...
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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Joshua S
Video by:
Joshua S
Employee Daniel D
Video by:
Daniel D
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Brent H
Installed by:
Brent H
Employee David F
Installed by:
David F
Employee Mary K
Written by:
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Employee Wilson B
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Employee Hannah L
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Employee Bradley B
Test Fit:
Bradley B

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