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Haldex · Air System
KN26000X
In stock · ships from Knoxville
The Haldex KN26000X is a remanufactured RT4 multi-function trailer brake control valve.
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Verified fitment for 2 applications
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Other applications
This valve is a standard trailer component; specific vehicle make and model fitment is not provided, but it fits most trailers equipped with spring brake control systems.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 19.
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It controls emergency and parking brake functions on trailers while also managing reservoir charging. If the trailer supply (emergency) line loses pressure, the valve automatically applies the parking brakes. It is designed to meet FMVSS-121 trailer requirements and is interchangeable with many competitive units. Although sometimes listed as a relay valve, this part is actually a trailer parking and emergency brake control valve.
Part Number: KN26000X
RELAY VALVE
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system
