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  1. Vehicle Suspension
  2. Pacbrake
  3. Air Springs
  4. Towing/Load Leveling
  5. Heavy Duty
  6. Rear Axle Suspension Enhancement
THIS ITEM IS NOT A FIT FOR
2023 Keystone Sprinter Limited Fifth Wheel
Pacbrake

Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs

Part Number: PB48VV
In Stock
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$488.33
Retail:$542.59
You Save: $54.26
Vehicle Suspension
Not Confirmed to Fit

2023 Keystone Sprinter Limited Fifth Wheel

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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 Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs part number PB48VV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (12)
  • Q & A (0)
  • Videos (1)
  • Photos

Pacbrake Vehicle Suspension - PB48VV

  • Air Springs
  • Towing/Load Leveling
  • Pacbrake
  • Heavy Duty
  • Rear Axle Suspension Enhancement
  • 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: Reduces rear-end sag, sway, and bounce for better handling under load.
  • Ride Smooth When Unloaded: Internal jounce bumpers protect ride quality with no air in the bags.
  • Adjustable Air Pressure: Set support between 0 psi and 100 psi depending on your load.
  • Complete Kit, Minimal Drilling: Includes laser-cut brackets, push-to-connect fittings, and all hardware.
  • Ready Now, Upgrade Later: Use manual inflation or connect to onboard air when you're ready.

Features to know about

Control and Cushion When It Counts

Heavy trailers, full beds, gear piled high, it all changes how your truck handles. Without the right support, you feel it immediately: sagging in the rear, poor handling, and a ride that gets unpredictable fast. This air bag system puts you back in control with up to 5,000 lbs of load-leveling support it helps reduce squat, improve steering response, and keep your truck stable when the weight stacks up.

Comfort When Unloaded, Control When Loaded

Every haul is different, and your suspension should keep up. Alpha HD Pro air springs give you full control over ride height and firmness with adjustable air pressure from 5 to 100 psi. Driving unloaded? The built-in jounce bumpers let you safely run at 0 psi for a smooth, factory-style ride with no harsh rebound. Hooked up to a fifth wheel or hauling a bed full of gravel? Add air to level the truck and keep handling tight. With manual inflation valves included, tuning your suspension for the day's load 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 Pro bags are reinforced all the way through with heavy-duty end caps, 20 internal support wires, integrated jounce bumpers, and powder-coated steel brackets. Toss in 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 DIY-er. 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 grow with your upgrades tomorrow. You can inflate manually through the included air valves right out of the box, no extra parts needed. Already have an onboard compressor? The Alpha HD Pro system connects easily to most existing setups.


Want to step up to an all-in-one kit with air bags, compressor, and wireless controller in one package? We've got you covered with Pacbrake's On Demand Kit (PB77YV).


Looking for a complete system with onboard air storage too? Upgrade to one of the "Ultimate" Kits (PB93YV) or (PB43YV) with air bags, compressor, wireless controller, and 1/2-gallon or 2-1/2-gallon air tank for added versatility.

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; 0 psi when unloaded

Estimated Install Time:

  • Professional install: 2-1/2 hrs
  • DIY: 4 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 Pro air springs (rear axle, with internal jounce bumpers)
  • Precision laser-cut powder-coated steel brackets
  • Grade 5 plated hardware
  • Air lines, push-to-connect fittings, inflation valves, installation instructions


HP10128-J Packbrake Alpha HD Pro Rear Air Spring Suspension Kit - Manual Inflation Valves - 5,000 lbs

Installation Details PB48VV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - 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 Pacbrake Alpha Air Bag Suspension Kit Review and Comparison

Hello, neighbors, it's Brad here from eTrailer, and today, we're taking a look at the Pacbrake line of rear suspension airbags. Now, there's a bunch of brands out there that we carry, and that could be Firestone or Air Lift traditionally, and I've installed tons of them. Pacbrake is fairly new to eTrailer, and I'm excited to tell you this is an awesome option. And I'm gonna show you why I think this might be a fantastic option for your truck. And even when you compare with those other ones, there's things that make Pacbrake stand out that I think might become my favorite. Now, if you've heard the name Pacbrake before, it's potentially from a lot of commercial trucking.

They've done engine brakes and exhaust brakes and have been around for a long time. And part of that is gonna be the airbag systems. Just like your Firestone and Air Lift that you find on semi-truck, Pacbrake is gonna be from that commercial aspect. So you know that it's been tried and true in heavy duty applications. And here we have three different styles of what they offer.

With the SD, you will get 1800 to 2000 pounds of load leveling in either sleeve style or in-coil bags. With the HD, you'll get 5,000 pounds of load leveling with either single or double convoluted bags and an internal jounce bumper. With the XD, you'll get 7,500 pounds of load leveling, double convoluted bags, and internal jounce bumpers. Now, as far as different styles, it depends on really your application of your vehicle and the height necessary. So here, we have a double convoluted.

That's pretty common that you'll see in a lot of different airbags. You have your roll plates and really, really nice brackets, something that's unique. These are all from different vehicles, and all of their brackets are extremely thick. They feel really good, and they have this hammered powder coat finish that looks really good and generally will hold up to chips, scratches and rust long-term. Now, with that being said, all these brackets are custom-fit to vehicles, so they're gonna be a bolt up application.

With that, are you gonna get anything different from those other brands that are out there Well, yes and no. I mean, at the end of the day, you're really getting airbag suspension and brackets to bolt up to your vehicle, but it's the little touches that I've noticed so far with the Pacbrakes that really make it a nice option. I got our Pacbrake airbags installed on our Tundra and I'm here to tell you that installation's probably not gonna be much different from other brands, but really what it comes down to is all of the touch points that I handled while putting this in place, very nice. Instructions we inchesre very thorough, the hardware was really good, the airlines we inchesre really good. So I have zero complaints. I'm not gonna say that if you go with Pacbrake, you're gonna have an easier installation. I don't think that's the case. I think it's definitely dependent on which vehicle you have. And that brings me up to another point. As you're looking for airbags, whatever brand it may be, make sure you're using our fit guide to get the specific fit to your vehicle, because many times, there's gonna be variances on trims or years, and it really can make a huge difference because these are custom fit. Now, this was a no drill application. I did cut some U bolts, and I didn't necessarily have to, but I wanted to get it a little bit cleaner-looking under here. And the reason those we inchesre so long is because they're separate brackets for those other years of trucks. So this is a wide range of them on this one, and they account for all of that. Little things like having a new clamp for your e-brake bracket. That way, it's not rubbing against everything is, again, them really doing the R&D, installing it, and putting themselves in the end user like you in their shoes. And that way, you get a really great system overall. So overall, when it comes to the installation, probably not gonna notice a huge difference, but I'm pretty happy with this. I did use the included tubing cutters and they worked fantastic. In fact, better than the one that I have, which probably needs to replace the blades. So this makes a huge difference, because really, the only connection points that I had to check for leaks we inchesre at the bottom on our air fitting. So as long as you tighten down the air fitting, it really comes down to getting a clean cut. And again, they didn't have to include this, but this keeps you from having to go out and guess or get a blade or whatever it may be. You have to go purchase that and hope that you made a clean cut. This does a really good job. And it's the little things like this that make Pacbrake I think stand out. Just thinking about the end consumer, Pacbrake does little stuff like this that really makes me think that they do care. There's a sticker that you can put in the door that has the replacement part for your spring. If you we inchesre to ever have these wear out, which these are a wear item. After multiple years in heavy use and especially in some Midwest weather like we have here, eventually, they can wear out. That's something to look at is their warranty. It's really good. But also, if you ever needed to replace that, you could take a look at this sticker. Instructions, it's really straightforward. There's pictures and it all makes sense. So that's another thing too. Generally, airbags aren't that hard of an installation, no matter what brand you get, but having concise and clear instructions will make it that much easier. So obviously, if you've landed on this page, you've probably already decided that you wanted airbags and you maybe considering Pacbrake over some of the other competitors. And I'm here to tell you that at the end of the day, I've had great luck with all of them, and all of them can be used with any air compressor that you wanna pick from any manufacturer, 'cause at the end of the day, you're just tapping into that same quarter inch airline tube. So why would you choose Pacbrake over the others I mean, it really comes down to personal preference. If you have a brand loyalty over one or the other, that's completely up to you. I didn't really know about Pacbrake until I started working here and we brought these on. We've had a few people install them and they had nothing but good things to say. And really, it comes down for us, ease of installation and all the touch points. When I see that these brackets have that hammered powder coat finish and it looks really good, that stands out to me. And a lot of that might come down to it's made and built in the USA. If you're looking at airbags and you've looked at all the different brands and Pacbrake is just one that there's not a whole lot of content on yet because we've just brought them on, hopefully, this video kind of helps maybe be a deciding factor for you, because at the end of the day, if I was to get airbags on my vehicle, Pacbrake might be the one that I look at first. And it really comes down to looking at prices between all of 'em. That's gonna be up to you. They tend to be pretty close to each other and maybe even a little bit under some of the other brands. And seeing all the fit and finish, all the quality features on it, I think Pacbrake is gonna be a huge great addition to your vehicle and to eTrailer. So if you're on the fence and you're not sure what this brand is and if it's gonna be the same as your Firestone and Air Ride, which you've heard of before, I'm here to tell you, you're gonna be equally, if not more happy with your new airbag setup.

Ratings & Reviews

4.3

12 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:

Easy to install and looks like it’s a high-quality product



by:

haven't received or used it yet but pretty darn excited



by:

The brackets are not built heavy enough



by:

Easy install. Will pull trailer 3000 miles on vacation and see how it performs to Montana on highways and Forest Service roads.



by:

good product , good strong solid metal parts and heavy bags. The instructions were not so hot but was easy to figure out and quick delivery !



by:

Where to start I have 1500 pounds of tools in my 150 Chevy had them installed and it totally changed the ride and handling of the truck haven’t pulled anything yet but I’m amazed on how different the truck is already I Baught the ones with the bump stops in them the HD ones



by:

I'm Vincent J,
My experience with loading
my truck and seeing the difference with these air bags from PacBrake, it does look way better and the truck feels a bit more stable running atspeed limit (65mph) after that it does feels jumpy if you go over potholes, but overall I'm happy with the product, thanks Etrailer,



by:

2020 Ram 1500.
Installation is fidgety
with lining everything together for the upper bracket with u-bolt(reason for 4 stars), but still preferred over cutting the bump stop mounts off. Replaced the Timbrens with this and it is night and day difference in ride quality both unloaded and towing.
Would purchase again.



by:

Product is well constructed and installation is straightforward. But you cannot build the kit and slip it in, you have to leave the top bracket off and install it after setting the lower bracket and air bag in place. I will note, I was working off jack stands and a floor jack, not on a lift.


12
12

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 Dawn Z
Written by:
Dawn Z

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