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Automann · Air System
170.KN28600
In stock · ships from Knoxville
The Automann 170.KN28600 is an FF-2 type full-function trailer brake valve that combines pressure protection, two one-way check valves, a spring brake valve with quick release, and a four-port relay valve into one compact, corrosion-resistant unit.
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Verified fitment for 7 applications
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All confirmed applications for this part number.
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Other applications
Fits trailers originally equipped with Haldex/Midland FF-2 series valves. Replaces Haldex KN28600 and many OEM cross-referenced numbers. Verify port sizes and configuration before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 33.
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It controls both service and spring brakes on a trailer, and its built-in anti-compounding feature prevents simultaneous application of service and spring brakes, protecting foundation brake components and maintaining FMVSS-121 compliance. This valve is typically replaced when it develops air leaks, fails to release brakes properly, or becomes corroded.
Part Number: 170.KN28600
FF2 TYPE FULL FUNCTION VALVE
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside air system
