For 2003-2006 Chevrolet C7500 Kodiak - HVAC Heater Control Valve Four Seasons

2003 Chevrolet C7500 Kodiak Heater Valve w/ Auxiliary Heater (Shut-Off Valve);. 2004 Chevrolet C7500 Kodiak Heater Valve w/ Auxiliary Heater (Shut-Off Valve);. 2005 Chevrolet C7500 Kodiak Heater Valve w/ Auxiliary Heater (Shut-Off Valve);.