1975-2026 Ford E-350 Alpha HD Pro S Rear Air Suspension Kit (HP10690-J-S)

The ALPHA HD PRO S pairs Pacbrake's HD air springs with internal jounce bumpers. The polyurethane bump stop sits inside the bag, so the spring cannot bottom out and damage itself, and you can run the kit at 0 psi when the van is empty for a factory feel ride. The PRO S adds stainless steel hardware that holds up to years of road salt.

Air up when the load goes on and you get up to 5,000 lbs of load leveling capacity, so the E-350 sits level, tracks straight and stops squatting and bouncing under the weight.

Part Number: HP10690-J-S

• 5,000 lbs of load leveling capacity
• 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
• Internal jounce bumpers (bump stops) protect the springs from bottoming out
• Run at 0 psi when unloaded for a factory ride
• Stainless steel hardware
• Corrosion resistant roll plates
• Precision laser cut, powder coated steel brackets
• Complete bolt on install kit

• Fits E-350 SRW and DRW van, stripped chassis, cutaway and Class C motorhome models
• Will not fit 2025-2026 stripped chassis and full custom body models
• Jounce bumpers reduce bag travel. For maximum travel when off-roading, launching boats or lowering to hitch a trailer, choose the HP10690 kit
• Stainless hardware installs per supplement L6623 alongside the L6653 kit instructions
• Some Pacbrake catalogues list this kit as ALPHA XD PRO S. It is the stainless hardware version of the 5,000 lb ALPHA HD, not a 7,500 lb XD kit
• Never exceed the manufacturer's recommended Gross Vehicle Weight Rating

• Installation Guide (L6653)

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