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.
Power Products · Air System
110500P
In stock · ships from Knoxville
The 110500P is a spring brake priority valve for heavy‑duty truck and trailer air brake systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Designed for common heavy‑duty trailer air brake setups. Verify your reservoir size and port threads (3/8 NPT supply, control, delivery; 1/2 NPT reservoir) match the valve before ordering. Interchanges with many OEM part numbers—check your existing valve’s part number against the cross‑reference list.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 21.
Different year, make, or config? Get a confirmation against your truck in under a minute.
Its job is to supply air first to release the spring brakes before building reservoir pressure, which prevents compounding and protects the system. You replace it when the valve fails to hold pressure correctly, causes slow brake release, or no longer meets FMVSS 121 compliance. This aftermarket valve directly replaces Haldex 110500, Bendix K025778, Sealco 110500, and many other OEM numbers.
Part Number: 110500P
SPRING BRAKE VALVE
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
