Manufactured by Pac Brake | HP10171-X-J | 2011-2019 Silverado/Sierra 2500HD/3500HD Alpha HD X-Series Rear Air Overload Kit (with Jounce Bumper), SIERRA / SILVERADO 2500HD (2WD/4WD) RATED UP TO 7500lbs, Designed for durability and performance, the ALPHA XD PROTM Series comes with Jounce Bumpers/Bump Stops, a flexible polyurethane bumper inside the bag that prevents bottoming out, which could damage your air springs, and allows you to run your bags at 0 psi when unloaded for factory ride comfort. Perfect for those that 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. Our ALPHA XD 7500 bags are perfect for those towing/hauling big loads on a regular basis. Alpha XD 7500 Air Springs by Pacbrake are the only extreme-duty air springs on the market with one-piece aluminum end caps and 20 support wires giving you maximum strength and durability. Rated for up to 7500 lbs. of load-leveling capacity*, Alpha XD 7500 is ideally suited for those towing/hauling big loads on a regular basis. The big 7-inch double convoluted bellow type air springs level your truck's stance while providing added support for an overall smooth and safe ride. Product information updated on 2025-03-24. This product can ship by Small Parcel
