2020-2026 Duramax Alpha HD Air Suspension Kit W/ 5th Wheel Prep (HP10725)

Note: This is the 5th wheel version. It fits trucks with (OEM) 5th wheel prep packages, where the standard HP10585 kit does not.

Pacbrake's ALPHA HD air suspension takes the compromise out of your Duramax rear suspension. Loaded or empty, the air springs carry the weight your leaf packs were never meant to hold on their own, so the truck sits level, tracks straight and rides settled instead of bouncing over every dip.

Rated for up to 5,000 lbs of load leveling capacity, it is a straightforward bolt on for work trucks, tow rigs and anything that spends its life hitched to a trailer.

Part Number: HP10725

• Eliminates sag, sway and bottoming out
• Distributes weight evenly across the tires
• One piece aluminum end caps, not plastic
• 20 support wires for strength and durability
• Corrosion resistant roll plates
• Precision laser cut, powder coated steel brackets
• Grade 5 plated hardware and a complete bolt on install kit

• Fits with (OEM) 5th wheel prep packages
• Will not fit with (aftermarket) Curt 5th wheel packages
• Will not fit Chassis Cab models
• An additional 2" spacer (HP10152) is required where the distance from the bottom of the jounce cup to the top of the strike plate is greater than 7.5"
• Never exceed the manufacturer's recommended Gross Vehicle Weight Rating

• Installation Guide (L6661)

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