Dorman 973-551 HVAC Blower Motor Resistor Kit

Dorman 973-551 HVAC Blower Motor Resistor Kit

Dorman 973-551 is an HVAC blower motor resistor kit for vehicles that need replacement of an overheated or corroded original resistor and its harness pigtail. It supports blower speed control restoration on select Chevrolet Blazer, GMC Jimmy, and Oldsmobile Bravada applications with module assembly.

Key Features

• Includes a blower motor resistor and harness pigtail for a direct repair approach
• 16-inch wiring harness length
• Blade terminal design with 7-wire harness and 6 terminals
• 3 connectors and 3 mounting holes for application-specific service
• Male connector gender with male/female terminal configuration
• Gasket or seal included for the repair interface
• Package contents: blower motor resistor, harness, and 4 butt connectors

Detailed Description

This Dorman HVAC blower motor resistor kit, part number 973-551, is built to replace a damaged OE resistor assembly and restore blower motor speed operation. It is a practical service part for HVAC electrical connector repairs where heat damage, corrosion, or connector wear has affected the original component. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Compatible vehicle coverage includes 1998-2002 Chevrolet Blazer, 1998-2002 GMC Jimmy, and 1998-2001 Oldsmobile Bravada, all with module assembly. For buyers searching Dorman 973-551 or a blower motor resistor kit for Chevrolet Blazer, GMC Jimmy, or Oldsmobile Bravada HVAC repair, this part matches the listed applications.

What It Helps Fix

• Blower motor speeds that stop working or operate intermittently
• Heat-damaged resistor connections
• Corroded HVAC electrical terminals
• Failed blower speed control caused by worn resistor circuitry
• Connector damage at the original resistor harness

Installation Notes and Tips

Verify the vehicle uses the listed module assembly application before ordering. Inspect the connector, terminals, and surrounding wiring for heat damage before installation. Replace any damaged wiring sections and use the included harness pigtail and butt connectors as needed to complete the repair. Confirm proper blower operation after installation across all available speed settings.

Quality Assurance

Dorman supplies service replacement parts engineered to address common OE failure points in automotive electrical systems. Part number 973-551 is built for the listed fitments and uses application-specific connector and terminal details to support a proper repair.