Dieselsite Max AC Assist AC Control Valve for 2003-2007 6.0L category_engine-and-performance-exhaust-and-components-exhaust-components If your PCM tear tag

If your PCM tear tag reads:

these headlights are DOT approved and install easily using factory mounting locations

or sideways

Protects oil cooler passages from clogging

Dieselsite Max AC Assist AC Control Valve for 2003-2007 6.0L category_engine-and-performance-exhaust-and-components-exhaust-components If your PCM tear tagMax AC Assist AC Control Valve WORKS ON ALL 2003 2007 F250 F450 Diesel and Gas Engines as well. In the HD and Superduty trucks, hot engine coolant is flowing through the heater core whenever the heat or Air Conditioning is turned on. The system does not differentiate between the two. This is fine when you are running your heater. However, running the Air Conditioner is a different story. When your AC is on, your cold air is not only flowing across the