SKU: 27964944026

2007-2026 Sprinter 3500XD/4500 DRW AlphaHD Pro Rear Air Suspension Kit (HP10391-J)

Sale price$384.11 Regular price$426.79
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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

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For Your Every Summer RSVP, with Code: SUMMER15

Description

2007-2026 Sprinter 3500XD/4500 DRW AlphaHD Pro Rear Air Suspension Kit (HP10391-J)Description Note: Will NOT fit SRW vehicles Will NOT fit E Sprinter models Will NOT fit models with ride height sensors. Will fit both Gas Diesel applications 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

Description

Note: Will NOT fit SRW vehicles/ Will NOT fit E-Sprinter models/ Will NOT fit models with ride height sensors. Will fit both Gas/Diesel applications

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 damages 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 Pacbrake added a bump stop to their bags?

Peace of mind. Customers want a bump stop to prevent bottoming out from loss of air bag pressure, an extremely rare event that could damage the air bags 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 air bags 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 HP10391 ALPHA HD air bag.

Part Number: HP10391-J

Features
  • 5,000 lbs of load leveling capacity
  • 2 hour install time
  • Lifetime warranty
  • Can be run at 0 psi
Notes
  • Never exceed manufacturer's recommended Gross Vehicle Weight Rating.
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: 27964944026

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Noah
New York, US
★★★★★ 5
MY FAVORITE SOCKS
Size: Large, Color: (001) Black / Black / Pitch Gray
I bought these originally at my local UA store and had to buy more. They are my favorite daily wear.
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Reviewed in the United States on February 25, 2026
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SD-out
Grantham, US
★★★★★ 4
A sock with real support and thickness!
Size: Large, Color: (001) Black / Black / Pitch Gray
I’m pretty happy with these. It seems like sock manufacturing changed 10-15 years ago, and it’s become hard to find pairs that are actually thick and durable. I bought these for an event where I knew I’d be on my feet all day, and they did not disappoint. They provided excellent support throughout the day, even while wearing shoes that typically make my feet ache after just a couple of hours. Glad to finally find a pair that feels well-made.
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Reviewed in the United States on April 10, 2026
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Amazon Customer
Los Angeles, US
★★★★★ 5
Great socks
Size: Large, Color: (001) Black / Black / Pitch Gray
Love the quality of this great product very comfortable and fits really good
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Reviewed in the United States on July 31, 2025
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Amazon Customer
Carnegie, US
★★★★★ 5
Happy husband
Size: Large, Color: (001) Black / Black / Pitch Gray
Husband loved the socks.
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Reviewed in the United States on May 25, 2026
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ALI HOLZER
Houston, US
★★★★★ 5
Good quality
Size: Large, Color: (100) White / White / Pitch Gray
These hold up really well. The extra cushion in the heels helps
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Reviewed in the United States on December 2, 2025

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