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FleetCraft · Air System
FC28600
In stock · ships from Knoxville
The FC28600 is an aftermarket Full Function Trailer Valve (FF-2) that integrates pressure protection, anti-compounding, service brake priority, and quick-release for both service and spring brakes into one compact unit.
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Universal fit
Universal fit for most heavy-duty trailers with air brake systems requiring a 3/4” reservoir port. Equivalent to Haldex KN28600, and cross-references to OEM numbers N4304AC (Haldex) and 39300584 (Wabash National). Commonly used on trailers with spring brake chambers.
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It manages the application and exhaust of a trailer’s air brakes, preventing damage from compounding and helping meet FMVSS-121 requirements. The valve has a 3/4″ NPT reservoir port, a 3 PSI crack pressure, and multiple delivery and spring brake ports, suitable for single or twin air tank trailer systems. It is typically replaced when the original valve develops air leaks, internal sticking, or uneven braking performance.
Part Number: FC28600
TRAILER VALVE FULL FUNCTION-FLEETCRAFT 3/4 RES
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system
