Pac Brake ALPHA XD PRO S 7500 lb Air Suspension For 2011-2019 Silverado Sierra 2500HD 3500HD HP10171-X-J-S

Designed for durability and performance, the ALPHA XD PRO S™ Series comes with bump stops and stainless steel hardware, and a flexible polyurethane bumper inside the bag that prevents bottoming out. This allows you to run your bags at 0 psi when unloaded for factory ride comfort. It's 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. For those who desire maximum bag travel (a great benefit when offroading, towing, and launching boats, or for those who constantly need to lower their rear to pick up trailers), consider the HP10171-X ALPHA XD air bag. It provides 7,500 lbs of load leveling capacity*. (*Never exceed manufacturer's recommended Gross Vehicle Weight Rating.) Each kit includes: 6ft Braided Stainless Steel Air Lines, Stainless Steel Air Spring Fittings, Stainless Steel Air Spring Mounting Hardware, Stainless Steel Schrader Valves, Stainless Steel Roll Plates, Two Air Springs, and everything required for install.