Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
KP Services Crossville · Air System
170.KN28601
In stock · ships from Knoxville
This is an FF2-type full-function air brake valve. It combines several air system components—pressure protection, one-way check valves, a spring brake valve with quick release, and 4-port relay valves—into a single unit.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It controls the application and release of spring brakes and ensures proper air pressure distribution in heavy-duty truck and trailer brake systems. You typically replace this valve when it develops internal or external air leaks, fails to release the spring brakes, or causes uneven braking performance.
Part Number: 170.KN28601
FF2 TYPE FULL FUNCTION VALVE
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside air system
