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  1. Vehicle Suspension
  2. Pacbrake
  3. Air Springs
  4. Towing/Load Leveling
  5. Extra Heavy Duty
  6. Rear Axle Suspension Enhancement
THIS ITEM IS NOT A FIT FOR
2020 Ford Fusion
Pacbrake

Pacbrake Alpha XD Air Bag Suspension Kit - Rear Axle - 7,500 lbs

Part Number: PB79RV
In Stock
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$771.87
Retail:$857.64
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Vehicle Suspension
Not Confirmed to Fit

2020 Ford Fusion

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7,500-lb Capacity. When your truck or van squats under weight, steering gets light and control fades. These extreme-duty air bags level your ride, help keep you in control, and protect your suspension from the punishment of heavy loads. Great Prices for the best vehicle suspension from Pacbrake. Pacbrake Alpha XD Air Bag Suspension Kit - Rear Axle - 7,500 lbs part number PB79RV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (3)
  • Q & A (0)
  • Videos (2)
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Pacbrake Vehicle Suspension - PB79RV

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

7,500-lb Capacity. When your truck or van squats under weight, steering gets light and control fades. These extreme-duty air bags level your ride, help keep you in control, and protect your suspension from the punishment of heavy loads.


Highlights

  • Custom Fit for Your Vehicle: Precision brackets bolt to existing factory attachment points.
  • 7,500-lb Load Support: Built to handle massive payloads, upfits, and commercial-grade hauling.
  • Ride Comfort and Stability: Reduces sag, sway, and road shock for better steering and safer braking under load.
  • Adjustable Air Pressure: Dial in support from 5 psi to 100 psi to match any load or towing setup.
  • Complete Kit, No Drill Install: Includes roll plates, laser-cut powder-coated brackets, air lines, and all hardware.
  • Ready Now, Upgrade Later: Use manual inflation out of the box, or connect to an existing compressor - this kit is built to grow with your setup.

Features to know about

Built to Handle Serious Loads and Keep You in Control

When your truck or van is built to carry serious weight, factory suspension alone won't cut it. Alpha XD (Extreme Duty) air springs add up to 7,500 lbs of rear axle support to keep your vehicle level and steady under pressure. If you're hauling heavy gear or equipment, you stay in control with less squat, better stability, and more predictable braking.

Adjustable Support for Every Haul

Some days you're maxed out, others you're running light. With Pacbrake's 5 to 100 psi adjustable range, you get the right support for every trip. When carrying heavy weight, add air to level your suspension and maintain steady handling. Running without a load? Drop to the minimum pressure for a smoother, more compliant ride without stiffness or bounce. Manual valves let you adapt your suspension to whatever the day throws at you.

Made to Survive the Real World

Built for demanding commercial use, Alpha XD springs use one-inch thick, corrosion-resistant end caps and 20 internal support wires for extreme strength. Heavy-duty roll plates reinforce mounting points and protect the air springs from wear, and powder-coated steel brackets hold up to rust, road salt, and long seasons of abuse. From scorching heat to frozen job sites, this system is made to outlast whatever the road dishes out.

Installation That Doesn't Waste Your Weekend

Adding serious load support shouldn't mean losing a whole weekend. The precision laser-cut brackets are designed to bolt cleanly to your vehicle's existing mounting points with minimal drilling. Just smart engineering that fits the way it should, which is perfect for the DIYer. Manual valves mount through license plate fastener holes or a location of your choosing (which may require drilling). With high-quality fittings, pre-bent brackets, and mounting hardware included, you'll be back on the road in just a few hours without a trip to the fab shop.

Flexible for Now, Adaptable for the Future

This kit is designed to work with your setup today and wherever your upgrades take you tomorrow. Inflate manually right out of the box - no extra parts required. Already running an onboard air system? The Alpha XD integrates easily. Planning to add a wireless controller later? No problem. With standard ports and fittings already in place, the foundation is built in, making it easy to expand your control options when you're ready.

Specs:

Weight & Capacity:

  • Load support: up to 7,500 lbs of additional leveling support
  • Air springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.

Adjustability:

  • Air pressure range: 5 psi - 100 psi; maintain minimum 5 psi when unloaded

Estimated Install Time:

  • Professional install: 2 hrs
  • DIY: 3-1/2 hrs, depending on tools and experience. Plan for extra time if this is your first air spring install or you're working in a driveway setup.

Warranty:

  • Limited lifetime on air bags
  • 2-Year or 24,000 miles on brackets, fasteners, and spacers

Included Components:

  • Pacbrake Alpha XD air springs (rear axle)
  • Precision laser-cut powder-coated steel brackets
  • Grade 5 plated hardware
  • Air lines, push-to-connect fittings, inflation valves, installation instructions


HP10391-X Packbrake Alpha XD Rear Air Spring Suspension - 7,500 lbs - Manual Inflation Valves

Installation Details PB79RV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Pacbrake Alpha XD Air Bag Suspension Kit - Rear Axle - 7,500 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Pacbrake Vehicle Suspension - Alpha XD Rear Axle Double Convoluted Air Bag Kit - PB79RV

Hi everybody, Andy here with etrailer.com. Let's take a real quick look at this Pacbrake Alpha XD Rear Axle Double Convoluted Air Bag Suspension Kit Now this has been designed to feature 2007 and newer Sprinter 3500 and 4500, both the two-wheel and four-wheel drive models. This is going to work with the dual-rear wheel models only. So this is not going to fit the single-rear wheel models and it's not gonna fit the eSprinter models or the models with the ride height sensor. So just so you're aware of all that. So with this kit, since it's custom-fit, I always recommend taking advantage of our vehicle fit guide here at etrailer.com.

Simply input the year, make, and model of your vehicle and our fit guide will confirm if this kit will work for you or if we have something comparable that will work for you. So as you know, when the load gets heavy, your Sprinter is going to need more than just those factory rear springs hanging on for a dear life. These airbags are going to add up to 7,500 pounds of rear axle support, keeping your Sprinter level and steady even when your trailer is loaded or the cargo area of your Sprinter is packed down or even when the miles are long. So you're not gonna have to worry about rear-end sag with this kit throwing off your braking and steering or your headlight aim being too high because the back of your Sprinter is being weighed down. As you know, every haul is going to be different.

That's why these air springs are going to give you full control over your ride height and firmness, with the adjustable air pressure from 5 to 100 psi. Hauling a fifth wheel or a full bed of gravel is not gonna be any problems because you can simply crank up the pressure in the bags. And then when you unload that trailer and you head home, just drop that pressure back down, giving you a more softer ride. With the manual inflation valves, you're gonna be able to tune your suspension for the day's work, so it's gonna be very easy, very straightforward. Extreme hauling demands extreme durability and these springs are built with one-inch thick, corrosion-resistant end caps on either end.

You can't see that right now because I do have these kind of loosely assembled with the roll plates on either end to give you an idea of what this is going to look like assembled. The bags are also reinforced with 20 internal support wires from maximum strength under a heavy load. And then as I mentioned, these roll plates, they're heavy duty and they're going to do a great job of protecting the bags from chafing and help extend their lifespan. These custom-fit powder-coated steel brackets are going to resist rust, corrosion, road salt and rough season. So if it's bitter cold or if it's scorching heat or mud-slick job sites, this system is made to outlast whatever the road is going to dish out, mile after mile and load after load.

And I just wanna say, as a side note, I have dealt with many other airbag suspension kits in the past from different manufacturers. Each manufacturer has their strength, but with Pacbrake, I definitely consider this a premium system. I'm really impressed with the materials that the bags are made out of. But the brackets, they have this really great, premium powder coat finish on them. So if you're looking for a premium airbag suspension kit, Pacbrake, in my opinion, is the way to go. These precision laser-cut custom-fit brackets are designed to bolt cleanly to your Sprinter's existing mounting points without welding or drilling. We'll just install, of course, with all the hardware that you see here. And this kit is designed to work with your setup right now or wherever your upgrades take you down the road tomorrow. So you're, again, gonna be able to inflate manually with standard air valves and airline right out the box. And then ,you're gonna be able, if you already have an onboard a compressor, this should connect pretty easily to most existing setups. But then if you're planning for an in-cab wireless controller sometime down the road, that's not gonna be an issue because with this kit, you're laying the foundation to expand your control options. So again, the load support is going to be 7,500 pounds of additional support. But I do wanna let you know that airbag suspension kits do not actually increase your vehicle's capacity. So you wanna make sure that you're not exceeding your manufacturer's recommended weight limit. If you do pick this kit up, we'd love to hear back from you regarding your experience with getting this installed and using it. So you can do that by dropping a comment or leaving a review on this product page. And if you have any other additional questions, don't hesitate to give us a call. We'd love to help you out. Well, that's gonna wrap up our look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.

Ratings & Reviews

4.0

3 reviews
7,500-lb Capacity. When your truck or van squats under weight, steering gets light and control fades. These extreme-duty air bags level your ride, help keep you in control, and protect your suspension from the punishment of heavy loads.

by:



by:



by:
2024 Mercedes-Benz Sprinter 3500

Takes more modification then instruction say

Kate F. profile picture
Etrailer Expert

Kate F.

9/24/2025

I am sorry to hear that install did not go more smoothly Brian! Can you please elaborate on what extra modifications were needed? We like for our information to be as accurate as possible, under the tech tips I see: -No drilling through vehicle frame required for installation. -Product does not fit models with ride height sensors . -Designed for vehicles with Dual Rear Wheels only. Can you please also verify that your 2024 Sprinter 3500 does not have the ride height sensors, and that you do have the dual wheels. Once I gather this information I will be reaching out to Pacbrake directly to get better answers =)

Brian C. profile picture

Brian C.

9/24/2025

The lifting ring on the axle needs to be cut off in order for the bracket to sit flat. The air bag bracket has to be cut down so the bracket sits flat where the torsion bar bracket is. @KateF
Kate F. profile picture
Etrailer Expert

Kate F.

9/24/2025

@BrianC Thanks for getting that information to me Brian. I am going to forward this over to Pacbrake to see what they have to say. If modification is needed, we like to have that listed in our tech tips. I will let you know what they have to say about it.
Kate F. profile picture
Etrailer Expert

Kate F.

9/25/2025

@BrianC Hello again Brian, I heard back from Pacbrake and this was their response: "This has the sounds of a leveling valve or a incorrect kit. Can you please find out if the sprinter is single or dual rear wheel please? As well if it has a ride height sensor." Can you please verify if you have a dual wheel or single, and if you have the ride height sensor? If you are not sure, please feel free to send me you VIN so I can look it up. I really do appreciate your time.

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See what our Experts say about this Pacbrake Vehicle Suspension

  • Can I Install Air Bags and SumoSprings on a 2024 Mercedes-Benz Sprinter 4500?
    Hey Pj! Those are not going to work together. The SumoSprings Solo Custom Helper Springs item # SSR-338-47 are going to mount in the same position on your axle and use the factory bump stop perch to attach. Out of those two options, I recommend the Pacbrake Alpha HD Air Bag Suspension Kit item # PB49RV. These are going to offer more adjustability and support in your Mercedes rear end. They have a 5,000 lbs capacity and you're not going to effect your ride when your rear end isn't loaded...
    view full answer...
  • Can I Install the Pacbrake Alpha XD Air Bags PB36RV on a 2023 Sprinter 3500 Dually?
    Hey Brian. I have a solution but the hubs on your Sprinter are still going to be too close to the frame even if you switch to a different wheel and tire set up to use the Pacbrake item # PB36RV. These won't work with the way the rear end on your Sprinter is setup. Instead you'll need the Pacbrake Alpha XD Air Bag Suspension Kit - Double Convoluted item # PB79RV, which is designed specifically for the 2023 Mercedes-Benz Sprinter 3500 with dually wheels. These are the same capacity air...
    view full answer...
  • Air Bag Kit for 2018 Thor Gemini 24TF to Level when Slide Out is Out
    Hey Dave, yes an air bag kit will help level your Thor Gemini. The correct PacBrake kit would be the part # PB79RV. If you use an air valve for each bag you can tailor the amount of pressure needed for each side of the RV so that you can level it like you are wanting. Are you wanting a compressor kit too?
    view full answer...

Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Daron K
Edited by:
Daron K
Employee Andy C
Installed by:
Andy C
Employee Dawn Z
Written by:
Dawn Z

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