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Haldex · Hydraulics
28600P
In stock · ships from Knoxville
The FF2 Full Function Valve is a self-contained trailer air brake control that prevents spring brake compounding—a damaging condition where service and parking brakes apply at the same time.
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Verified fitment for 2 applications
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Designed for FMVSS-121 compliance. Suitable for a wide range of heavy-duty trailers; not vehicle-specific.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 13 of 13.
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It integrates pressure protection, anti-compounding, and quick-release functions for both service and spring brakes into a single, lightweight composite body. Typically replaced when the valve leaks, fails to release properly, or during scheduled air system overhauls.
Part Number: 28600P
3/4 FF2 VALVE (FULL FUNCTION VALVE)
Unit: ea
Dealer: Post Onsite
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