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HDXKN28600

HALDEX VALVE FF2

This is a Haldex FF2 Full Function Trailer Valve, a multi-function air brake control valve commonly used on heavy-duty tractors and trailers. It combines a pressure protection valve, one-way check valves, a spring brake valve with quick release, and a four-port relay valve in one unit. It prevents spring brake compounding and gives priority to service brakes, helping you stop safely. Replace it when it leaks, fails to maintain pressure, or causes brake imbalance or slow release.