This air brake valve kit includes a push pull valve, knob, spiral pin, parking brake knob, and nut for servicing the push pull valve assembly on a heavy-duty truck. The dash-mounted knob lets the driver manually open or shut an air line feeding accessories such as the trailer parking brake. Sold as one complete kit per unit.Interchanges:286820EM56360FeaturesPush Pull Valve KitIncludes push pull valve (EM56120 / OEM 278450)Includes knob (LVK-3603 / OEM 25MY32P19)Includes spiral pin (LPN-5119 / OEM 31AX629)Includes parking brake knob (LVK-3603-001) and nut (LNU-1359 / OEM 21AX828)Tech SpecsKit contents:Push Pull Valve – part EM56120, OEM 278450, qty 1Knob – part LVK-3603, OEM 25MY32P19, qty 1Spiral Pin – part LPN-5119, OEM 31AX629, qty 1Parking Brake Knob – part LVK-3603-001, qty 1Nut – part LNU-1359, OEM 21AX828, qty 1Sell pack: 1 EACH