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  1. Vehicle Suspension
  2. Air Lift
  3. Air Springs
  4. Towing/Load Leveling
  5. Heavy Duty
  6. Rear Axle Suspension Enhancement
THIS ITEM IS NOT A FIT FOR
2018 Hymer Aktiv 2.0 Motorhome
Air Lift

Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle

Part Number: AL57399
In Stock
$382.27
Retail:$679.09
You Save: $296.82
Vehicle Suspension
Not Confirmed to Fit

2018 Hymer Aktiv 2.0 Motorhome

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5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension. Great Prices for the best vehicle suspension from Air Lift. Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle part number AL57399 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Air Lift Vehicle Suspension - AL57399

Highlights

  • 5,000-lb Load-Leveling Capacity: Provides up to 5,000 lbs of full-time support.
  • Enhanced Vehicle Stability: Improves ride comfort and helps keep vehicles level.
  • Durable Construction: Made from 2-ply, fabric-reinforced rubber with Zytel nylon endcaps.
  • Adjustable Air Pressure: Tailor support between 5 psi and 100 psi for optimal performance.
  • Side-to-Side Leveling: Inflate springs separately to balance uneven loads efficiently.
  • Includes Mounting Hardware: Comes with brackets, air lines, and valves for easy installation.

Features to know about

Level Your Ride Comfortably: Load-Leveling Capacity Up to 5,000 lbs

If you've ever experienced squatting or uneven vehicle loads, you’ll appreciate the Air Lift LoadLifter 5000’s solution. These air springs level your ride, providing up to 5,000 lbs of load-support. They help your truck maintain its composure even when hauling heavy cargo, minimising the strain on your factory suspension.

Easy Pressure Adjustments on the Go: Manual Inflation Valves and Lines Included

No more hassle when adjusting pressure for varying loads! The LoadLifter 5000 includes manual inflation valves installed typically on the bumper for easy access. You can inflate the springs individually for precise side-to-side leveling or maintain even distribution across the entire vehicle.

Enhanced Safety and Performance: Improved Braking and Steering

Driving with a heavy load can make braking and steering more unpredictable. The Air Lift LoadLifter 5000 addresses this by stabilizing your vehicle when loaded. It improves safety by providing better steering control and reliable braking performance, giving you peace of mind during your drives.

Durability that Lasts: Corrosion-Proof Zytel Nylon Endcaps

One standout feature of the LoadLifter 5000 is its construction. The springs come with endcaps made from high-strength Zytel nylon, known for being lighter and more corrosion-resistant than steel. This means no more worrying about rust-related air leaks or degradation, ensuring a long lifespan for the air springs.

Smooth Rides All Year: Diminishes Sway and Absorbs Road Shock

Say goodbye to the excessive sway and rough rides on bumpy roads. The LoadLifter 5000 air springs enhance stability by absorbing road shocks. This results in a smoother, more enjoyable ride whether you're towing a trailer or carrying heavy cargo.

Simple Installation with Comprehensive Kit: Mounting Brackets and Hardware Included

Installing suspension upgrades can be daunting, but Air Lift simplifies the process. The LoadLifter 5000 comes with all necessary mounting brackets and hardware. Just follow the steps, and you’re most of the way to a perfectly leveled and stable vehicle!

Specs

Weight and Capacity

  • Load-leveling capacity: up to 5,000 lbs

Adjustability

  • Adjustable air pressure: 5 psi - 100 psi

Warranty and Guarantee

  • 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.

57399 Air Lift LoadLifter 5000 Air Bag Suspension Support System - Back Axle

Installation Details AL57399 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

1642 reviews
5 Stars
(1362)
4 Stars
(181)
3 Stars
(41)
2 Stars
(16)
1 Star
(42)
5,000-lb Capacity. Designed to upgrade your rear suspension, LoadLifter 5000 air springs provide high-quality, full-time load support. They level your vehicle, improving braking and ride comfort and reducing the strain on your factory suspension.

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See what our Experts say about this Air Lift Vehicle Suspension

  • 7,500 lb Capacity Air Bag Kit that Fits 2025 Ford F-450
    Hey Robert, there was a big enough change between the 2022 and 2023 models of the F-450 that Air Lift had to release a new fit for the trucks. So for your 2025 F-450 you would need the Air Lift LoadLifter 5000 part # AL57399. It's pretty common with newer trucks that fits change often as vehicles are updated pretty often now. Do you have a compressor? With that said only Firestone has a 7,500 lb bag kit available for your truck and for that you'd need the part # F95FV.
    view full answer...
  • Best Suspension Enhancement to Reduce Squat on 2019 Ford F-250 Super Duty When Towing 5th Wheel
    So the issue you are having with squat on your 2019 Ford F-250 Super Duty will actually not be resolved with either of the SuperSprings suspension kits you mentioned. Those will help to a point, but they aren't going to resolve squat because they are going to flex with weight on them so your truck is still going to squat. To prevent squat the best suspension enhancement option for your 2019 F-250 is going to be air bags. The reason is because they allow you to fill the air bags to whatever...
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  • Can I Use Airbag on a 2019 Ford F-250 with the Factory Prep Package
    The only airbag kit we have that will fit your 2019 Ford F-250 is the Air Lift LoadLifter 5000 Air Helper Springs part # AL57399 for standard or part # AL88399 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 # F2600 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 Air Bags Work with the B&W Turnoverball Part # BWGNRK1116 on a 2018 Ford F-250
    The airbags that I recommend for your 2018 Ford F-250 are the Air Lift LoadLifter 5000 Air Helper Springs part # AL57399. These airbags will not interfere with the B&W Turnoverball Underbed Gooseneck Trailer Hitch part # BWGNRK1116 as you can see in the attached photo. The Air Lift airbags will do an excellent job of improving both safety and ride quality. They are adjustable which means you can inflate each spring independently for side-to-side leveling of off-center loads. The kit comes...
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  • How Much Can a 2019 Ford F-250 Crew Cab Powerstroke Tow
    The towing capacity of your 2019 Ford F-250 Crew Cab Powerstroke with the 6-3/4' bed will vary from 14,100-16,600 lbs depending on drive type, axle ratio, and gross combined weight rating. If you can provide me with this information I would be happy to provide you with an exact capacity. The axle ratio should be listed on a tag inside the glove box and the gross combined weight rating should be listed on a tag inside the driver door jamb but if not you can always call the dealer with your...
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  • What is the Difference Between # AL88399 and # AL57399 for 2017 For F-250 Super Duty
    Hello Cory. The difference between the two is that the Air Lift LoadLifter 5000 # AL88399 has an internal jounce bumper (bump stop), and the Air Lift LoadLifter 5000 # AL57399 does not. Both products have a 5,000 pound load leveling capacity, and are both a confirmed fit for you 2017 Ford Super Duty. If I were you, I would go with the # AL57399. The only real benefit that I see in having the jounce bumper is if you were carrying a really heavy load and the bag were to fail. I have heard...
    view full answer...
  • Comparing Firestone and Air Lift Air Bags on 2024 Ford F-450 Platinum
    Hi Chris, welcome back! Firestone makes the better air bags but the Air Lift LoadLifter 5000 # AL57399 brackets are better than the Firestone so I don't expect the same issue you had before. With Air Lift I actually recommend getting the model with the internal jounce bumper # AL88399 for that extra protection and support if you don't have enough air pressure. Since you have a 4" lift you will need the Air Lift Universal Air Spring Spacers for LoadLifter 5000 and 7500XL - 4" Lift # AL52440...
    view full answer...
  • Air Lift 5000 or 7500 Air Bags For 2019 Ford F-350 Super Duty 4x4 Towing 5th Wheel
    Hey Brent, Good question and for your 2019 Ford F-350 4x4, I would go with the Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs # AL57577. Compared to the Air Lift LoadLifter 5000 # AL57399, the the 7500 XL are going to give you the best load-leveling both now and, like you mentioned, into the future. The ride won't be rougher than the 5,000 lb bags if you keep them at a low psi, as the internal jounce bumpers on the 7500 XL won't be engaging. The 7500 XL # AL57577 are also larger...
    view full answer...
  • What Air Bags Will Work with a 5th Wheel Hitch on a 2019 Ford F-250
    I am glad you came to us for help as the problem you anticipated is valid and an issue on some airbags kits. For an airbag kit that will fit your 2019 Ford F-250 4x4 and will allow you to install a 5th wheel or gooseneck hitch in the future without any issues, I recommend the Air Lift LoadLifter 5000 Air Helper Springs part # AL57399. This kit installs under the frame rail so there will not be any issue with a 5th wheel or gooseneck hitch whatsoever. In fact, we actually installed these...
    view full answer...
    Image 1 for
  • Is a B&W Gooseneck Hitch Compatible with Firestone Ride-Rite Air Bags in a 2018 Ford F-250
    Firestone does not have a kit that will work with a B&W gooseneck trailer hitch in a 2018 Ford F-250. The upper brackets mount to the outside of the frame rails and would interfere with the gooseneck frame brackets. You could switch to Air Lift system # AL57399 for a 4x4 or # AL57391 for 2-wheel drive models because they mount to the bottoms of the frame rails.
    view full answer...
  • Fitting Air Lift # AL57399 to 2017 Ford F-350 with Lift Kit
    It sounds like you are pretty close to the correct height for the Air Lift kit part # AL57399 to fit without a spacer as it sounds like the block lift you have was a body lift. Either way though Air Lift recommends installing the brackets of their kits first and seeing if the air bag is correct height as-is. If the height does not match let me know the distance between the top and bottom brackets and I'll be able to check with Air Lift and determine what type of spacer solution you'd need. This...
    view full answer...
    Image 1 for
  • What Air Bag System Should I Use on my 2020 Ford F-250 with Factory Prep Package?
    Because you have the factory prep package on your 2020 Ford F-250 you'll need an airbag system that installs under the frame rail as opposed to outside of it, where the factory prep package would interfere with it. For that reason I recommend going with the Air Lift LoadLifter 5000 Air Helper Springs # AL57399 (standard) or the Air Lift LoadLifter 5000 Ultimate Air Helper Springs # AL88399 (ultimate). The Ultimate version has an internal jounce bumper that will allow you to temporarily...
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  • Are Air Bags Needed for 2019 Ford F-250 Pulling Heavy RV
    I highly recommend getting air bags for your 2019 Ford F-250 Super Duty for towing RVs that are as heavy as 10,000 lbs. The issue is that due to the amount of weight that the RVs put on the rear of your truck, what will happen is that your truck's back end will sag a bit, lifting up the front end. What this does is make your truck more difficult to handle when turning or braking, while also wearing down your tires. So there is no downside and much upside to installing air bags, which will...
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  • Available Sway Bars or Suspension Enhancement for 2017 Ford F-350 Super Duty with Truck Bed Camper
    I have a solution to correct the sway and enhance the suspension on your 2017 F-350 Super Duty with the single rear wheels, but the Roadmaster Sway Bar # RM-1139-193 is only designed for use on dually trucks. Because most sway is caused by unevenly distributed weight, there are several different ways you can help stabilize your truck that doesn't use a sway bar. If your truck is loaded more often than not, or will always have a camper attached to the bed the TorkLift StableLoad Suspension...
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  • Does AirLift # AL57399 Air Bags Fit a 2019 Ford F-350 with Dual Rear Wheels
    Yes. The Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle # AL57399 are a confirmed fit on the 2019 Ford F-350 with dual rear wheels and also in-bed 5th wheel and gooseneck hitches. If you don't already have a compressor system that will allow you to keep the air bags filled on the fly and from the comfort of your truck's cab, the Air Lift Load Controller Compressor System for Air Helper Springs- Heavy Duty - Dual Path # AL25856 is a great option. This is a dual path system that...
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  • Correct Air Lift Air Springs for a 2018 Ford F-350 4x4 with B&W Gooseneck Hitch
    The correct Air Lift LoadLifter 5000 Air Helper Springs for a 2018 Ford F-350 4x4 with B&W Turnoverball Underbed Gooseneck Trailer Hitch part # BWGNRK1116 is part # AL57399 which fits both single rear wheel and dual rear wheel models. The Air Lift LoadLifter 5000 Air Helper Springs install under the frame rail and the B&W Turnoverball Underbed Gooseneck Trailer Hitch installs on the outside of the frame rail so there won't be issues. If you will be frequently inflating and deflating the...
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  • Recommended Autosliding 5th Wheel Hitch for 2019 Ford F-250 with 6-3/4 Bed and OEM Puck System
    For your 2019 Ford F-250 Super Duty with the 6-3/4' bed and OEM puck system we have the Demco Hijacker 5th wheel hitches. These fit directly into the pucks so no adapter is needed and they give you 14" of fore/aft travel so that you have enough cab turning clearance. This comes in both 18K # DM8550024 and 21K # DM8550038 versions but I recommend going with the 21K because it allows you to tow a larger variety of 5th wheel trailers. Attached is an installation video of the 18K in a 2014...
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  • Recommended Air Springs for 2017 Ford F-250 to Help with Towing 5th Wheel Trailer
    For your 2017 Ford F-250 I recommend the Air Lift LoadLifter 5000 Air Helper Springs # AL57399 as long as you have the 4WD model. The air springs on this system feature a 5,000 pound capacity and will do a great job of keeping your truck level and improving your overall ride quality. The mounting brackets are compatible with an in-bed hitch. You can then add the Air Lift Load Controller Compressor System # AL25856 so you can monitor and adjust the bags from the comfort of the cab. This...
    view full answer...
  • 5th Wheel Towing Capacity for a 2019 Ford F-350 Dually
    The fifth wheel or gooseneck towing capacity of a 2019 Ford F-350 Dually will range from 12,100 lbs to 34,000 lbs depending on options such as engine size, axle ratio, cab style etc. Therefore, you will need to verify your exact towing capacity and make sure it exceeds the fully loaded weight of the trailer you wish to tow in order to determine compatibility. In order to tow a fifth wheel trailer you will need a hitch, the Reese M5 5th Wheel Trailer Hitch part # RP30922 is a great option...
    view full answer...
  • Where Do The Air Fittings Mount For The Air Lift Air Bags On My 2017 Ford F-250
    The Air Lift LoadLifter 5000 Air Helper Springs # AL57399 does not include a bracket for mounting the air fittings on your 2017 Ford F-250. The installation instructions say to drill a 5/16" hole for the air fittings to secure to. It also lists a couple recommended areas to do this such as inside the fender openings, inside the fuel door or on the rear bumper. I like the idea of replacing the license plate bolts with the air valve fittings. This will allow the fittings to be nearly invisible...
    view full answer...
  • Will Air Bags for 2019 Ford F-250 Super Duty FX4 4WD Affect Ride With Minimum PSI
    The ride of your 2019 Ford F-250 will not be affected in any way when you have an unloaded ride and have them inflated to the minimum of 5 psi. The reason you have to keep them inflated to a minimum psi is so the air bags don't get damaged by losing their shape when not inflated. As for the air bags, I confirmed that the Firestone bags do not fit a 2019 Ford F-250 FX4 with 4WD, though you still have a great option with bags from AirLift. I recommend the Air Lift LoadLifter 5000 Air...
    view full answer...
  • Are Spacers Required for Air Lift Air Springs on Lifted 2020 Ford F-250
    If the rear suspension on your 2020 Ford F-250 is lifted, there is a decent chance that some additional spacers will be needed when installing the Air Lift LoadLifter 5000 Air Helper Springs # AL57391 for 2WD or # AL57399 for 4WD. The best way to determine what size space you need though is to actually measure the gap that will be left once the springs are installed. The actual distance a particular lift raises the suspension on your truck can vary (a "6 inch lift" doesn't necessarily...
    view full answer...
  • Will Air Lift Air Suspension System Raise Ride Height of 2017 Ford F-250
    The internal jounce bumpers in the LoadLifter Ultimate air bag system # AL88399 could possibly raise the vehicle ride height a tiny bit, even when aired down, but the LoadLifter 5000 without the jounce bumper, part # AL57399 will NOT raise the vehicle ride height when aired down to the 5psi minimum, as confirmed by Air Lift. In this instance where you'd want to air down before pulling into the garage, an onboard compressor system like # AL25856 would be pretty convenient. You can add or...
    view full answer...
  • Air Spring Suspension Kit Recommendation for 2019 Ford F350 with Factory Prep Kit
    For your 2019 Ford F350 whether it is 4WD or 2WD will make a difference. If you have the 2WD then I recommend the Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle # AL57391. If you have the 4WD I recommend # AL57399. These options are confirmed to fit your F350 and will adjust from 5 psi to 100 psi for your ride preference. These kits come with the manual inflation valves so you can adjust the springs. If you want to have the ability to adjust air pressure at any time, then...
    view full answer...


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