bing tracking image
  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
2008 Keystone Outback Travel Trailer
Pacbrake

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

Part Number: PB25RV
In Stock
$505.82
Retail:$767.21
You Save: $261.39
Vehicle Suspension
Not Confirmed to Fit

2008 Keystone Outback Travel Trailer

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 Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs part number PB25RV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (14)
  • Q & A (0)
  • Videos (2)
  • Photos

Pacbrake Vehicle Suspension - PB25RV

  • 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 (PB76YV).


Looking for a complete system with onboard air storage too? Upgrade to one of the "Ultimate" Kits (PB97SV) or (PB47SV) 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 hrs
  • DIY: 3 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


HP10585-J Packbrake Alpha HD Pro Rear Air Spring Suspension Kit - Manual Inflation Valves - 5,000 lbs

Installation Details PB25RV 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 Review of Pacbrake Vehicle Suspension - Alpha HD Pro Rear Axle Air Bag Kit Jounce Bumpers - PB25RV

Hi, everybody, Andy here with etrailer.com. Let's take a real quick look at this Pacbrake Alpha HD Pro rear axle double convoluted airbag suspension kit with internal jounce bumpers. Now, this kit has been designed to fit your 2020 and newer Chevrolet Silverado and GMC Sierra 2500 and 3500s with either the two-wheel or four-wheel drive models. And I also listed some other bits of information that will prove helpful for you. For the AT4 and the Trail Boss models, you should use the model number that you see there on your screen. That comes with the required two-inch spacer.

And then, this is gonna be for all trucks, including those with the OEM fifth wheel prep package. Do note that this will not fit the cabin chassis models and this will not fit vehicles with aftermarket CURT fifth wheel packages. All that to say, on custom-fit parts such as this kit, it is vital that you use 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. Now, heavy trailers and full beds and gear piled high, that all changes how your truck handles.

So without the ride support, you're gonna feel that immediately, whether it's sagging in the rear or poor handling and a ride that can get possibly unpredictable very fast. This airbag system is going to put you back in control with up to 5,000 pounds of load leveling support's gonna help reduce that squat, it's gonna improve steering response, and it's gonna keep your truck stable when that weight stacks up. Now, bottoming out just doesn't feel rough, it can actually wreck those airbags. So that's why this system includes internal jounce bumpers that you see there on your screen in that cutaway there. These bumpers are inside each bag, so even with no air pressure, your suspension has a built-in safety net.

You're gonna be able to safely run at zero PSI when unloaded, which means no harsh rebound, just a smooth factory-style ride. But as you know, every haul is different. That's why these springs give you full control over your ride height and firmness with adjustable air pressure from five to 100 PSI. So if you're hauling a fifth wheel or a full bit of gravel, you'll just crank up the pressure and then when you're unloaded and heading home, you can just drop that pressure back down for a softer ride. With these manual inflation valves included tuning your suspension for the day's work, it's gonna be very easy and straightforward.

Now, these bags are reinforced all the way with heavy duty end caps that you can't see because they do have them kind of loosely snuggled here. But we also have these heavy duty roll plates that are going to protect those airbags. There's also 20 internal support wires inside of the bag that are going to add to the durability of the bags themselves. You're gonna have powder-coated steel brackets, and then the hardware itself is also going to be corrosion-resistant. I don't have all the hardware laid out on my table here, but I do have a photo here, showing you everything that's going to be included. So everything here is designed to hold up to real-world hauling through all types of seasons, all types of road conditions, and these precision laser-cut brackets, they're custom-fit. They are designed to bolt cleanly to your truck's existing mounting points. And so, everything that is going to come with this kit is going to get you up and running and all you need to supply are the tools. And then I also wanted to point out that this kit is designed to work with your setup as it sits now or wherever your upgrades may take you down the road. So again, you're gonna be able to manually inflate these bags with the standard air valves right out of the box, no extra parts needed, but maybe you already have an onboard compressor. If so, that's great. This system is going to connect easily to most existing setups. And if you're planning for something in the future like an in-cab wireless controller, that's not gonna be an issue either, because basically, what you're doing with this system is, you're laying the foundation for upgrades down the road. So this is gonna grow with you. So again, this is gonna give you up to 5,000 pounds of load leveling support, but please be aware of the fact that this does not actually increase your truck's weight carrying capacity. So you wanna make sure that you're not exceeding your manufacturer's recommended weight limits. If you do pick this system up, we would love to hear back from you regarding how the installation went and how you're using these and how they're working out for you. So you can share your experience with us by dropping a comment or leaving a review on this product page. And if you have any other additional questions, don't hesitate to call, email, or chat us. We wanna make sure that you're getting exactly what you want and need. I think 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

4.4

14 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:

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:

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:

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



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.


14
14

See what our Experts say about this Pacbrake Vehicle Suspension

  • What Pacbrake Air Bag Kit Fits The 2025 GMC Sierra 2500?
    Hello Wynn, thanks for reaching out. The Pacbrake # PB56SV you mentioned is for the 2025 GMC 2500 but will only fit the AT4X models. If you do not have the AT4X, you have the following options to choose from: - Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs # PB85RV - Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs # PB25RV - Pacbrake Alpha XD Air Bag Suspension Kit - Rear Axle - 7,500 lbs # PB52RV For bumper pull or...
    view full answer...

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.com 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.


<