SKU: 84556973346

2019-2026 GM 1500 AlphaHD Pro Rear Air Suspension Kit (HP10340-J)

Sale price$215.62 Regular price$239.58
Save 10%

Pay in installments of $59.90 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

2019-2026 GM 1500 AlphaHD Pro Rear Air Suspension Kit (HP10340-J)Description Note: For all truck bed lengths. Will NOT fit models equipped with Adaptive Ride Control. AT4 Trail Boss requires 2" spacer. Tired of truck sag, sway, and bottoming out? Say goodbye to these problems with the ALPHA HD PRO from Pacbrake! These air bags air helper springs (with Jounce Bumpers Bump Stops) come with inch thick corrosion resistant end caps and 20 support wires for ultimate strength and durability. This kit features a bouncy

Description

Note: For all truck bed lengths. Will NOT fit models equipped with Adaptive Ride Control. AT4/Trail Boss - requires 2" spacer.

Tired of truck sag, sway, and bottoming out? Say goodbye to these problems with the ALPHA HD PRO from Pacbrake! These air bags/air helper springs (with Jounce Bumpers/Bump Stops) come with inch-thick corrosion-resistant end caps and 20 support wires for ultimate strength and durability.

This kit features a bouncy polyurethane bumper in the bag to avoid damage caused by bottoming out. Perfect for those who want the peace of mind of having an internal bumper and covet the ride comfort of being able to run without air when not towing.

Customers will now have a choice to buy a Pacbrake air suspension kit with or without an in-bag bump stop.

Why did Pacbrake add a bump stop to their bags?

Peace of mind. Customers want a bump stop to prevent bottoming out from loss of airbag pressure, an extremely rare event that could damage the airbags or potentially the frame of the truck. Think of it as an "insurance policy" against bottoming out.

An additional benefit is that you can run these airbags at 0 psi when unloaded for superior ride comfort.

Are bump stops necessary?

No! For those that require max travel in their air bags, to raise and lower their rear end to pickup trailers or boats, or for those that take their trucks off roading, air bags without bump stops are recommended. Consider the HP10340 ALPHA HD airbag.

Part Number: HP10340-J

Features
  • 5,000 lbs of load leveling capacity
  • 2-hour install time
  • Lifetime warranty
  • Can be run at 0 psi
Notes
  • Never exceed the manufacturer's recommended Gross Vehicle Weight Rating
  • Will not fit models equipped with MagneRide
  • Trail Boss & AT4 models may require a 2" Air Spring Spacer (HP10152)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84556973346

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 25 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Robert Gheysens
Los Angeles, US
★★★★★ 5
Night and day difference
Style: Tech Pack 28 sqft
Stuff works great. Really makes a difference in the sound quality of the vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
L
Verified Purchase
lael gore
Bozeman, US
★★★★★ 5
Worth it
Style: Tech Pack 28 sqft
Excellent sound deadening for my tundra doors. Expensive, but worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
D
Verified Purchase
Dana Coelho
Houston, US
★★★★★ 5
Heat and sound deterrent.
Style: Tech Pack 28 sqft
My husband likes this stuff for his older cars. Helps with heat from engine and sound.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
D
Verified Purchase
Dupre'
Boise, US
★★★★★ 5
Sound Barrier
Style: Tech Pack 28 sqft
Easy to install and work with
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
J
Verified Purchase
Jacob Nicholas
Alexandria, US
★★★★★ 5
Good buy.
Style: Tech Pack 28 sqft
Perfect amount for small suv. Easy to install once panels are off. Great product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026

recommand products