Dorman 973-029 HVAC Blower Motor Resistor Kit

Dorman 973-029 HVAC Blower Motor Resistor Kit

Dorman 973-029 is an HVAC blower motor resistor kit for vehicles that need replacement of an overheated or corroded original resistor and connector pigtail. It restores blower speed control with a direct-fit resistor and harness solution for select Ram and Dodge Ram trucks.

Key Features

• Includes a blower motor resistor and wiring harness pigtail
• Built for HVAC electrical connector repair on select Ram and Dodge Ram applications
• Female connector with male blade terminals for the specified vehicle harness interface
• 4-wire harness layout with a 7.5-inch harness length
• 2 mounting holes for the resistor assembly
• Direct replacement for OE part number 68048900AA
• Cross-references Monroe Shocks & Struts 172286 and 182286 for the same application

Detailed Description

This Dorman blower motor resistor kit is made for HVAC systems that have lost blower speed control because the original resistor overheated, corroded, or damaged the connector. It is a practical replacement for Ram 1500, Ram 2500, Ram 3500, and Ram 4000 trucks, including 2011-2018 Ram 2500 and 2011-2018 Ram 3500 models without climate control. It also fits 2011-2018 Ram 4000 without climate control, 2011-2014 Ram 1500 without climate control, and 2009-2010 Dodge Ram 1500, 2010 Dodge Ram 2500, and 2010 Dodge Ram 3500 without climate control.

Part number 973-029 is built around the original vehicle connector style and uses blade terminals with a female connector and male terminals to support a proper electrical connection. The included harness pigtail helps address heat-damaged wiring at the resistor connector, which is a common failure point in blower motor circuits.

What It Helps Fix

• Blower motor only working on certain speeds
• No airflow from the HVAC blower on some settings
• Intermittent fan operation caused by a damaged resistor circuit
• Heat damage or corrosion at the blower resistor connector
• Electrical resistance issues in the HVAC blower control circuit

Installation Notes and Tips

Verify vehicle configuration before ordering, since this part fits trucks without climate control. Confirm connector style, mounting hole count, and harness routing against the original component before installation. Inspect the blower motor connector and surrounding wiring for heat damage, and repair any damaged terminals before installing the new resistor assembly. Part number 973-029 is intended for direct replacement use on the listed Ram and Dodge Ram applications.

Quality Assurance

Dorman supplies this HVAC blower motor resistor kit as an OE-style replacement for the listed applications. It is engineered to replace the original resistor and harness assembly on affected Ram and Dodge Ram trucks, including OE cross-reference 68048900AA.