bing tracking image
  1. Vehicle Suspension
  2. Pacbrake
  3. Air Springs
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Heavy Duty
THIS ITEM IS NOT A FIT FOR
2011 Chrysler 300
Pacbrake

Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs

Part Number: PB57ZV
In Stock
$442.17
Retail:$491.31
You Save: $49.14
Vehicle Suspension
Not Confirmed to Fit

2011 Chrysler 300

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

5,000-lb Capacity. When the load gets heavy, your truck shouldn't feel like it's fighting you. These air bags help you stay level and in control so you can tow with confidence and handle heavy loads without second-guessing your suspension. Great Prices for the best vehicle suspension from Pacbrake. Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs part number PB57ZV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (26)
  • Q & A (0)
  • Videos (2)
  • Photos

Pacbrake Vehicle Suspension - PB57ZV

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

5,000-lb Capacity. When the load gets heavy, your truck shouldn't feel like it's fighting you. These air bags help you stay level and in control so you can tow with confidence and handle heavy loads without second-guessing your suspension.


Highlights

  • Custom Fit for Your Vehicle: Precision brackets bolt to factory attachment points.
  • 5,000-lb Load Support: Adds rear axle support for towing, hauling, and bed-loaded stability.
  • Improved Ride Stability: Reduces rear-end sag, sway, and bounce for better handling under load.
  • Adjustable Air Pressure: Set support between 5 psi and 100 psi depending on your load.
  • Complete Kit, No Drilling: Includes laser-cut brackets, push-to-connect fittings, and all hardware.
  • Ready Now, Upgrade Later: Use manual inflation or connect to an onboard air system when you're ready.

Features to know about

Control and Cushion When It Counts

When the load gets heavy, your truck needs more than just rear springs hanging on for dear life. Alpha HD air springs add up to 5,000 lbs of rear axle support, keeping your truck steady even when the trailer is loaded, the bed is packed, and the miles are long. No more rear-end sag throwing off your braking and steering, or headlights pointing into the sky. With air bag support underneath, you keep control of your ride even when you're towing a travel trailer or moving a serious payload.

Dial in the Ride for Any Load

Every load is different, and this system adjusts to match. Alpha HD air springs let you fine-tune ride height and firmness with air pressure from 5 to 100 psi. 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 inflation valves are included, so tuning your setup for each trip is straightforward and dependable.

Built Tough for Work and Weather

Air bags are only as strong as their weakest link. That's why Alpha HD bags are reinforced from end to end with heavy-duty end caps, 20 internal support wires, and powder-coated steel brackets. Add corrosion-resistant hardware and thick roll plates, and you've got gear that holds up to real-world hauling through heat, cold, salt, and slop.

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 truck'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 Today, Ready for What's Next

This kit is designed to work with your setup today and wherever your upgrades take you tomorrow. You can inflate manually with standard air valves right out of the box, no extra parts needed. Already have an onboard compressor? The Alpha HD system connects easily to most existing setups. Planning for an in-cab wireless controller down the road? No problem. The foundation is already built in, making it easy to expand your control options when you're ready.

Specs:

Weight & Capacity:

  • Load support: up to 5,000 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: 2-1/2 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 mounting brackets, fasteners, and spacers

Included Components:

  • Pacbrake Alpha HD 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


HP10206 Pacbrake Alpha HD Rear Air Suspension - 5,000 lbs - Manual Inflation Valves

Installation Details PB57ZV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 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 HD Rear Axle Double Convoluted Air Bag Kit - PB57ZV

Hi everybody. Andy here with etrailer.com. Let's take a real quick look at this PacBrake Alpha HD Rear Axle Double Convoluted Airbag Suspension Kit. Now this kit has been designed to fit your 2014 and newer RAM 2,500. Both the two wheel and four wheel drive models, and your 2014 Dodge Ram 2,500. Please note on the screen that these will not fit vehicles equipped with a factory optional air suspension, and this may require the use of two inch spacers on some later model RAM 2500 2 wheel and four wheel drive models that are the power wagon application.

So if that's you, I do have the item number there for those spacers that you can add to your order. If you are in need of them. On custom fit parts such as this kit, I do recommend taking advantage of our vehicle fit guide here at etrailer.com. Input the year, make and model of your vehicle and our fit guide will confirm for you if this kit will work or if we have something comparable that will work for you. Now, heavy trailers, full beds and gear piled high, you know that that all changes how your truck handles.

So without the right support, you're gonna feel that immediately. Whether it's sagging in the rear, poor handling, or a ride that gets unpredictable very fast, this airbag system is gonna put you back into control with up to 5,000 pounds of load leveling support. So that's gonna, this is gonna help reduce that squat. It's gonna help improve steering response and it's gonna keep your truck stable when the weight stacks up. But every haul is different.

That's why these air springs give you full control over the height and firmness with adjustable air pressure from five to 100 PSI. So for instance, if you're hauling a fifth wheel or a full bed of gravel, you'll just simply crank up that pressure and then when you're unloaded and heading home, drop the pressure back down for a softer ride, with these manual inflation valves included tuning your suspension for the day's work's gonna be really straightforward. These bags are reinforced all the way through with heavy duty end caps, 20 internal support wires, and powder coated steel brackets. And I don't have all the hardware laid out here on my table, but I thought it would be easier for to see what you get with a photo there. So as you can see, you're gonna get all of this hardware.

I do have the bags loosely assembled with the roll plates and the brackets, just kind of give you an idea of what it's going to look like installed on your truck, but the corrosion resistant hardware, along with those thick roll plates, you're gonna get a kit that's gonna hold up really well to real world hauling through any type of weather conditions, any type of road conditions. The precision laser cut brackets are designed to bolt cleanly to your truck's existing mounting points without welding or drilling your frame. And this kit is designed to work with your setup now and wherever your upgrades may take you down the road. So again, you're gonna be able to inflate manually with the standard air valves right out of the box, no extra parts needed, but maybe you already have an onboard compressor. If that's the case, that's great because these are gonna connect easily to most existing setups. Or maybe you're planning for something like an in-cab wireless controller down the road. That's not gonna be an issue either because you're laying the foundation with this kit. It's gonna be very easy to expand your control options when you are ready. Now, as I mentioned, this is going to give you up to 5,000 pounds of load leveling support, but I do wanna make you aware of the fact that these do not actually increase your truck's weight carrying capacity. So you wanna be sure that you're not exceeding the manufacturer's recommended weight limits. If you do pick this kit up, we would like to hear back from you regarding your experience with getting these installed and using them so you can share your experience with us by dropping a comment or leaving a review on this product page. But if you have any other questions, don't hesitate to reach back out to us. We wanna make sure that you're getting exactly what you want and need. 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

4.7

26 reviews
5,000-lb Capacity. When the load gets heavy, your truck shouldn't feel like it's fighting you. These air bags help you stay level and in control so you can tow with confidence and handle heavy loads without second-guessing your suspension.

by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:

Don’t fit, worked on it for hours with no luck.



by:

They need instructions to be more clear but fit very nicely i would recommend pacebrake



by:

Going camping!!!



by:

Worked out great



by:

Thank you Joshua for your assistance.



by:

Easy install and done exactly what I needed it to do



by:

Excellent choice… Very high-quality… Took 4 to 5 hours to install… Which included new shocks getting all the tools together and clean up… Very happy thank you



by:

Installed this past weekend. Haven't towed with it yet. Nice construction and finish. I have a 2025 Chevrolet Trail Boss 2500HD and the spacers are NOT needed. Measurement for needing the spacers in 7" and above between jounce cup and contact pad. My space was 5.5" to 6".



by:

Awesome product easy to install and I really appreciate etrailer service



by:

It was very easy install . The ride has improved a lot while towing my 41 ft. toy hauler , Thanks !!



by:

Direct bolt on, plug and play



by:

The product is a great product. After installation was completed and the air added to the air suspension, it raised the rear end of the van about 2-3 inches.A very nice improvement.
Installation instructions definitely need better quality diagrams.



by:

Easy to install and work just as I had expected. Great finish on brackets and quality hardware. Easy to follow instructions. Highly recommend these airbags!



by:

The 2" spacers are definitely not needed for a Trail Boss. I could barely get them in, and now the ride is super stiff. Now I have to get back under the truck and remove the spacers. Not looking forward to that. It was very difficult installation, for no reason.



by:

Very well built brackets, installation was as explained in the instruction. Happy Camper!


25
26
Show More Reviews

See what our Experts say about this Pacbrake Vehicle Suspension


Info for this part was:

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

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


<