The Gates emission control hose for 2012-2013 Chevrolet Impala 3.6L connects the valve cover to the throttle body, routing crankcase ventilation as part of the vehicle's emission control system. Specified as a valve cover-to-throttle body hose in the description, it provides the required routing function and is intended for replacement on the listed Impala model years.

Gates 12-13 Chevrolet Impala V-6 3.6L Valve Cover To Throttle Body Emission Control Hose