Controls the fan speed in your AC and heating system,restores heating and cooling system to performance. If you can no longer adjust the air speed with your AC controls or your air conditioner system no longer blows that means you need a new blower motor resistor. EASILY INSTALLATION - Easily installs into your AC blower motor. Simply remove the screws that secure the blower motor resistor into the blower, remove the resistor assembly, and install the new resistor in place. Part Number:04885482AC 04885482AA 04885482AD 4885482AC 4885482AA 4885482AD Name:Blower resistance Fitment: for : for CHARGER (2005-2010) for DURANGO (2004-2009) for CARAVAN (2001-2007) for (2005-2010) for : for (2004-2008) for 300C (2005-2010) for (2007-2009) for / (2001-2007) for / (2008-2010) for : for GRAND (1999-2004) for COMMANDER (2006-2010) for LIBERTY (2007-2010) for GRAND (2005-2010) Color:Black & Silver Material:Plastic + metal Package Contents: 1 x Blower resistance Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.