Standard RU638T HVAC Blower Motor Resistor - Front

HVAC Blower Motor Resistor for Jeep, Dodge, and Chrysler

Restore proper blower motor speed control with this Standard RU638T HVAC blower motor resistor. It is a direct-fit replacement built with durable materials and tested for performance and reliability, making it a practical choice for Jeep Liberty, Dodge Nitro, and other listed Chrysler, Dodge, and Jeep applications.

• Direct-fit replacement for easier installation
• Female connector with 2 terminals
• Male blade terminals, 6-terminal design
• Built with high-quality materials for durability
• Tested for performance and reliability
• Standard RU638T for select automatic temperature control systems

Detailed Product Information

The Standard RU638T is an HVAC blower motor resistor used to regulate blower fan speeds in vehicles equipped with automatic temperature control. Its connector and terminal configuration includes a female connector, 2 connector positions, male blade terminals, and 6 terminals, which helps match the original electrical interface on the listed vehicles. This part cross-references Dorman OE Solutions 973-027 and Four Seasons 20374 for the same application. Standard RU638T is listed for select Jeep Liberty, Dodge Nitro, Jeep Commander, Jeep Grand Cherokee, Chrysler Town & Country, Chrysler Voyager, Dodge Durango, Chrysler Pacifica, Dodge Caravan, Dodge Grand Caravan, and Chrysler Grand Voyager applications.

Vehicle Fitment

• Fits 2010-2013 Jeep Liberty, N/A
• Fits 2010-2012 Dodge Nitro, N/A
• Fits 2007-2009 Dodge Nitro, N/A, 6 Blade Term.
• Fits 2008 Jeep Commander, Front, w/ Auto. Temp Control; To 5/19/08
• Fits 2008 Jeep Grand Cherokee, N/A, w/ Auto. Temp Control; To 5/19/08
• Fits 2006 Jeep Commander, Front, w/ Auto. Temp Control
• Fits 2005-2006 Jeep Grand Cherokee, N/A, w/ Auto. Temp Control
• Fits 2004-2005 Chrysler Town & Country, Front, w/ Auto. Temp Control; 6 Term.
• Fits 2005 Chrysler Voyager, Front, w/ Auto. Temp Control; 6 Term.
• Fits 2004-2005 Dodge Durango, Front, w/ Auto. Temp Control
• Fits 2004 Chrysler Pacifica, N/A
• Fits 2001-2004 Chrysler Voyager, Front, w/ Auto. Temp Control
• Fits 2001-2004 Dodge Caravan, Front, w/ Auto. Temp Control
• Fits 2001-2004 Dodge Grand Caravan, Front, w/ Auto. Temp Control
• Fits 2001-2003 Chrysler Town & Country, Front, w/ Auto. Temp Control
• Fits 2001-2002 Chrysler Grand Voyager, Front, w/ Auto. Temp Control

Common Symptoms This Part Can Address

• Blower motor works on only one speed
• Intermittent cabin fan operation
• No airflow from the HVAC vents at certain settings
• Incorrect blower speed response from the climate control system
• Loss of fan control in automatic temperature control systems

Installation Notes and Tips

Verify the connector style, terminal count, and vehicle build date before installation, especially on 2008 Jeep Commander and 2008 Jeep Grand Cherokee applications with the 5/19/08 cutoff. Confirm whether your vehicle uses front-position HVAC mounting and automatic temperature control, since those details are part of the fitment listing. Compare the original resistor to the RU638T before replacement to ensure the blade-terminal layout matches the factory unit.

Quality Assurance

Standard states that this resistor is manufactured with complete quality control throughout the production process. It is tested for performance and reliability and built as a direct-fit replacement for consistent service in the listed Jeep, Dodge, and Chrysler HVAC systems.