Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs
This item does not fit your vehicle
2014 Dodge Ram Pickup
These items fit your vehicle
2014 Dodge Ram Pickup
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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.
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.
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.
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.
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.
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.
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.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody, this is Jeff at etrailer.com. Today we take a look at the Pacbrake Alpha HD Airbag Suspension kit for the rear axle. This has a 5,000 pound load leveling capacity. Now this is a custom fit part. It is designed to fit the 2007 to 2009 Dodge Ram and Sterling Bullet 4500, 5500 cabin chassis trucks. And it'll work on either two wheel drive or four wheel drive models.
And on a custom fit part like this, I do like to recommend for you to go to our website, use the fit guide, put in your year and model vehicle, and I'll show you if this will work for your application. Now these airbags are gonna help you stay level, drive steady, and stay in control when you're hauling heavy loads. This kit will include everything I laid out here on the table. It includes the air springs for the rear axle, the upper and lower roll plates, the precision laser cut powder coated steel brackets. The grade five plated hardware.
Comes with the airlines with the inflation valves. Right here we have the push to connect fittings for the airline to connect to, and it even comes with some installation instructions that'll describe how this all goes together. Basically, when your trailer's loaded and the bed is full, your truck needs more than just the stock rear springs to stay level and in control. And that's where these Alpha HD Air Springs will come into play. These are gonna add up to 5,000 pounds of rear axle support, helping your truck stay steady and secure through every haul.
So basically, whether you're pulling a fifth wheel, hauling materials or towing equipment, this upgrade will keep you from sagging, squatting, and struggling for control. And also, one load isn't like the next. That's why this Pacbrake gives you freedom to adjust the air pressure from five to 100 PSI. So basically, if you need full support for a loaded trailer, just pump it up. If you're unloaded and heading home, you can drop the pressure for a lot smoother ride.
So with the simple manual inflation right outta the box, you get better ride quality and confidence no matter how much you're hauling. So basically, you'll start with simple manual inflation, or you can expand the system later with an onboard air or wireless controls. The Alpha HD is designed to scale with your setup, making future upgrades easy without redoing your foundation. Now, I wanted to zoom in a little bit closer on the springs themselves. This isn't light duty gear, these Alpha HD Springs are built with one inch thick end caps on each spring, and then they use 20 internal wires on the spring itself to handle extreme loads without giving in. The parts are all corrosion resistant parts. The roll plates right here, upper and lower for protection of the springs. Powder coated brackets ensure that the system will hold up through road salt, rain, mud, and even over time. (coughing) Now, these are designed to bolt to your factory mounting points on your truck. This air spring kit installs with no drilling required. One note I do wanna mention is air springs will not increase your vehicle's weight carrying capacity so you do wanna make sure not to exceed the manufacturer's recommended weight limit. But that's gonna do it for a look at the Pacbrake Alpha HD Airbag Suspension Kit for your rear axle.
Ratings & Reviews
Info for this part was:
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.
Lazer S.
7/20/2026
Glad to hear the install wasn't too bad, Dan! Sorry to hear it stiffened up you unloaded ride though. That is one of the only downsides with adding something like this to a Ram truck. They are known for their very nice ride and once you add anything for support when towing, it does inevitably mess with it. What are you towing?