SKU #: PB-HP10725 MPN #: HP10725

Pacbrake ALPHA HD/XD Air Suspension Kit 20-26 GM 2500HD/3500HD

$466.93
Get 466 points in loyalty rewards
Description
When your truck is loaded down with a trailer, tools, or cargo, the extra weight can cause the rear to sag and make the truck feel less stable on the road. The Pacbrake ALPHA Air Suspension Kit adds adjustable air springs to the rear suspension to help keep your truck level while towing or hauling. The added support helps reduce sag, sway, bouncing, and bottoming out for a more controlled and comfortable ride. Each kit uses double-convoluted air springs and is designed for a straightforward bolt-on installation. Choose between ALPHA HD with up to 5,000 lbs of load-leveling capacity or the heavier-duty ALPHA XD with up to 7,500 lbs of load-leveling capacity and larger 7-inch, higher-volume air springs. Both are available in Standard, PRO, and PRO S configurations, making it easy to choose the level of support and features that fit how you use your truck. These air springs provide additional suspension support and do not increase the vehicle manufacturer's Gross Vehicle Weight Rating (GVWR). AVAILABLE OPTIONS: HP10725 - ALPHA HD: Provides up to 5,000 lbs of load-leveling capacity with standard double-convoluted air springs. HP10725-J - ALPHA HD PRO: Provides up to 5,000 lbs of load-leveling capacity and adds internal polyurethane jounce bumpers to help prevent bottoming out and allow the air springs to run at 0 PSI when unloaded. HP10725-J-S - ALPHA HD PRO S: Provides up to 5,000 lbs of load-leveling capacity with internal jounce bumpers, braided stainless steel air lines, stainless steel air spring fittings, mounting hardware, Schrader valves, and roll plates for added durability and corrosion resistance. HP10725-X - ALPHA XD: Provides up to 7,500 lbs of load-leveling capacity with larger 7-inch, higher-volume double-convoluted air springs for heavier-duty load support. HP10725-X-J - ALPHA XD PRO: Provides up to 7,500 lbs of load-leveling capacity and adds internal polyurethane jounce bumpers to help prevent bottoming out and allow the air springs to run at 0 PSI when unloaded. HP10725-X-J-S - ALPHA XD PRO S: Provides up to 7,500 lbs of load-leveling capacity with internal jounce bumpers, braided stainless steel air lines, stainless steel air spring fittings, mounting hardware, Schrader valves, and roll plates for added durability and corrosion resistance. IMPORTANT FITMENT NOTES: Compatible with models equipped with the OEM 5th wheel prep package Does not fit Chassis Cab models ALPHA HD models do not fit aftermarket Curt 5th wheel packages and require Pacbrake HP10152 2-inch Air Spring Spacers when the jounce cup-to-strike plate distance is greater than 7.5 inches ALPHA XD Standard and PRO models do not fit aftermarket 5th wheel brackets that mount to the sides of the vehicle frame or Trail Boss and AT4X models ALPHA XD PRO S does not fit aftermarket Curt 5th wheel packages or Trail Boss and AT4 models ALPHA XD models do not fit when the jounce cup-to-strike plate distance is greater than 7.5 inches ALPHA XD Standard and PRO models are not compatible with Pacbrake 2-inch, 4-inch, or 6-inch Air Spring Spacers Additional Installation Manual for Stainless Upgrade Kits
Select Load Capacity

Product photos may not match the selected option. Please confirm your choice before adding to cart.

Enter your zip and we'll see if installation is available.

  • Request quotes from local installers at checkout
  • Compare options and choose the best fit for your install

When your truck is loaded down with a trailer, tools, or cargo, the extra weight can cause the rear to sag and make the truck feel less stable on the road. The Pacbrake ALPHA Air Suspension Kit adds adjustable air springs to the rear suspension to help keep your truck level while towing or hauling. The added support helps reduce sag, sway, bouncing, and bottoming out for a more controlled and comfortable ride. Each kit uses double-convoluted air springs and is designed for a straightforward bolt-on installation.

Choose between ALPHA HD with up to 5,000 lbs of load-leveling capacity or the heavier-duty ALPHA XD with up to 7,500 lbs of load-leveling capacity and larger 7-inch, higher-volume air springs. Both are available in Standard, PRO, and PRO S configurations, making it easy to choose the level of support and features that fit how you use your truck. These air springs provide additional suspension support and do not increase the vehicle manufacturer's Gross Vehicle Weight Rating (GVWR).

AVAILABLE OPTIONS:

  • HP10725 - ALPHA HD: Provides up to 5,000 lbs of load-leveling capacity with standard double-convoluted air springs.
  • HP10725-J - ALPHA HD PRO: Provides up to 5,000 lbs of load-leveling capacity and adds internal polyurethane jounce bumpers to help prevent bottoming out and allow the air springs to run at 0 PSI when unloaded.
  • HP10725-J-S - ALPHA HD PRO S: Provides up to 5,000 lbs of load-leveling capacity with internal jounce bumpers, braided stainless steel air lines, stainless steel air spring fittings, mounting hardware, Schrader valves, and roll plates for added durability and corrosion resistance.
  • HP10725-X - ALPHA XD: Provides up to 7,500 lbs of load-leveling capacity with larger 7-inch, higher-volume double-convoluted air springs for heavier-duty load support.
  • HP10725-X-J - ALPHA XD PRO: Provides up to 7,500 lbs of load-leveling capacity and adds internal polyurethane jounce bumpers to help prevent bottoming out and allow the air springs to run at 0 PSI when unloaded.
  • HP10725-X-J-S - ALPHA XD PRO S: Provides up to 7,500 lbs of load-leveling capacity with internal jounce bumpers, braided stainless steel air lines, stainless steel air spring fittings, mounting hardware, Schrader valves, and roll plates for added durability and corrosion resistance.

IMPORTANT FITMENT NOTES:

  • Compatible with models equipped with the OEM 5th wheel prep package
  • Does not fit Chassis Cab models
  • ALPHA HD models do not fit aftermarket Curt 5th wheel packages and require Pacbrake HP10152 2-inch Air Spring Spacers when the jounce cup-to-strike plate distance is greater than 7.5 inches
  • ALPHA XD Standard and PRO models do not fit aftermarket 5th wheel brackets that mount to the sides of the vehicle frame or Trail Boss and AT4X models
  • ALPHA XD PRO S does not fit aftermarket Curt 5th wheel packages or Trail Boss and AT4 models
  • ALPHA XD models do not fit when the jounce cup-to-strike plate distance is greater than 7.5 inches
  • ALPHA XD Standard and PRO models are not compatible with Pacbrake 2-inch, 4-inch, or 6-inch Air Spring Spacers

Additional Installation Manual for Stainless Upgrade Kits

Manuals and Guides
Vehicle Fitment
2020-2026 Chevrolet Silverado/GMC Sierra 2500HD/3500HD (2WD/4WD, SRW/DRW)
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
FEATURES & BENEFITS:
  • Helps reduce rear-end sag when towing or hauling heavy loads
  • Reduces sway, bouncing, and bottoming out for improved stability and ride control
  • Adjustable air springs help keep the truck level as load conditions change
  • Available with up to 5,000 lbs of load-leveling capacity with ALPHA HD or 7,500 lbs with ALPHA XD
  • Double-convoluted air spring design provides durable support for demanding towing and hauling applications
  • Bolt-on design requires no vehicle modifications for a straightforward installation
  • PRO and PRO S models feature internal polyurethane jounce bumpers to help prevent bottoming out and allow operation at 0 PSI when unloaded
  • PRO S models add braided stainless steel air lines, air spring fittings, mounting hardware, Schrader valves, and roll plates for increased durability and corrosion resistance
  • Provides additional load-leveling support without increasing the vehicle manufacturer's GVWR

About PacBrake
PACBRAKE EXHAUST BRAKES

Pacbrake is a manufacturing company based out of Langley, British Columbia that began operations in 1961, specializing in exhaust and engine brakes for commercial truckers, loggers, and the military. Today, their expertise still lies on exhaust braking solutions, but it goes well beyond this and into numerous other vehicle upgrades such as air suspension, air compressors, complete air management solutions, and so much more.

PACBRAKE EXHAUST BRAKES

Diesel Power Products is proud to offer the complete line of Pacbrake PRXB Exhaust Brakes for Cummins, Duramax and Powerstroke diesels. At the time of their release, the PRXB line of brakes was unlike any other, and still maintains superiority over many alternatives to this day. So what does PRXB mean and how does it work? PRXB stands for "Pressure Release Exhaust Brake." Basically, all exhaust brakes have to release a certain amount of exhaust, otherwise it would cause excessive backpressure to the engine and cause damage. However, PRXB's are unique in that they have a variable release so that as RPM's slow down, so does the release of exhaust, equating to better retarding power at lower RPM's. If you tow with your diesel and don't have an exhaust brake, you're simply missing out on the peace of mind and safety that it delivers. Pacbrake's kits come complete, even torque converter lockup controllers when applicable, exhaust adapters for aftermarket oversized exhaust, and more.

PACBRAKE AIR BAGS & AIR COMPRESSORS

With a name like Pacbrake you would assume that they ONLY make diesel exhaust brakes. That couldn't be farther from the truth. Pacbrake has jumped into the light duty diesel truck market with an innovative product line including AMP series air bags, air suspension, Dodge short shift kits, on board air kits and accessories and their MaxFlow Elbow for 1994-2002 Ram trucks which is based on the same elbow used in the PRXB MaxFlow Exhaust Brake kit. Pacbrake manufactures exhaust brakes for GM Duramax, Ford Powerstroke and Cummins Diesels. Not sure which Pacbrake part is right for you? Give us a call or send us an email, we'll be glad to help!

SHOP PACBRAKE AIR BAGS, BRAKES, AND MORE AT DPP!