Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Sealco · Air System
SA996555
In stock · ships from Knoxville
The SA996555 is a Sealco air suspension dump valve (original part number 996555) used to control the inflation and deflation of air bags on heavy-duty trailers.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Fits any air suspension system with 1/4" NPT air ports. The automatic reset function requires the pilot port to be plumbed to a supply line and fitted with a 0361 breather (included). Never plug the pilot port in automatic mode.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 7 of 7.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It features a manual push-pull knob that lets the driver dump air from the suspension to lower the trailer, then automatically resets and refills the air bags when the parking brakes are released—provided the pilot port is connected to the supply line. This valve gives you both manual control for loading/unloading and automatic ride-height recovery without having to remember to re-inflate the bags. If you run it in pure manual mode (pilot not connected), it will hold the bags exhausted so you can move the trailer without the suspension pumping up.
Part Number: SA996555
DUMP VALVE
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
