Replacement EGR Valve for IH Engine w/ Adjustable Orifice Hole Size Match the hole size your current EGR valve has with one of the supplied orifice washers and stake into the new valve. Includes EGR valve gasket. Replaces IH Part numbers 440306C1, 440307C1, 440308C1, 440309C1, 451936C1, 451937C1, 472207C1, 480825C1, 480826C1
