Dorman 973-410 HVAC Blower Motor Resistor Kit

Brand Dorman 973-410
Gasket or Seal Included Yes
Mounting Hardware Included No
Package Contents Blower Motor Resistor and Instructions
Terminal Type Blade
Fits Chevrolet, GMC, Buick, and Oldsmobile · 35 vehicles

OE replacement kit. Includes a resistor and harness pigtail for a direct swap.

Blade terminals. Uses blade-style terminals for a secure electrical connection.

Seal included. Comes with a gasket or seal to help protect the connection.

Cross-references 3A1296, 15-81095 and 15373437 for the same application. See all 7.

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Dorman 973-410 HVAC Blower Motor Resistor Kit

Dorman 973-410 is an HVAC blower motor resistor kit that replaces an overheated or corroded original resistor on select GM SUVs. It includes the resistor and harness pigtail needed for a direct repair on vehicles with blower speed control issues.

Key Features

  • Includes a blower motor resistor and harness pigtail
  • Blade terminal type for the electrical connection
  • Gasket or seal included for the repair area
  • Replacement for damaged, heat-affected, or corroded OE resistor assemblies
  • Compatible with select Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and related applications

Detailed Description

This HVAC blower motor resistor kit is built for select 2002-2009 Chevrolet Trailblazer and GMC Envoy applications, along with Buick Rainier, Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, and Oldsmobile Bravada models. Dorman 973-410 addresses common blower speed control failures by replacing the resistor and connector interface at the source of the electrical problem. This part cross-references Dorman 973-410 for the same application.

Use this part when the original resistor shows signs of heat damage, corrosion, or connector wear that can interrupt blower motor operation. It is a direct-fit HVAC electrical connector repair for vehicles without climate control, and it supports restoration of normal cabin fan speed control.

Common Issues This Part Can Solve

  • Blower motor works only on certain fan speeds
  • No cabin airflow from the HVAC blower motor
  • Intermittent blower operation caused by a damaged resistor connection
  • Heat-related melting or corrosion at the resistor connector
  • Loss of HVAC fan speed control in the dash system

Installation Notes and Tips

  • Verify vehicle equipment before ordering; this part is for models without climate control.
  • Inspect the blower motor connector and surrounding wiring for heat damage before installation.
  • Follow the included instructions for proper resistor and pigtail replacement.
  • Confirm terminal alignment and gasket/seal placement during installation.

Quality Assurance

Dorman supplies replacement electrical and HVAC components for service repairs on specific vehicle applications. Part number 973-410 is listed for direct replacement use on the confirmed fitment shown below.

  • Fits 2002-2009 Chevrolet Trailblazer, N/A, Includes Connector; Exc. Climate Control
  • Fits 2002-2009 GMC Envoy, N/A, Includes Connector; Exc. Climate Control
  • Fits 2004-2007 Buick Rainier, N/A, Includes Connector; Exc. Climate Control
  • Fits 2002-2006 Chevrolet Trailblazer EXT, N/A, Includes Connector; Exc. Climate Control
  • Fits 2002-2006 GMC Envoy XL, N/A, Includes Connector; Exc. Climate Control
  • Fits 2004-2005 GMC Envoy XUV, N/A, Includes Connector; Exc. Climate Control
  • Fits 2002-2004 Oldsmobile Bravada, N/A, Includes Connector; Exc. Climate Control
This part fits 35 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2009ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2009GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2008ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2008GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2007BuickRainierN/AIncludes Connector; Exc. Climate Control
2007ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2007GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2006BuickRainierN/AIncludes Connector; Exc. Climate Control
2006ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2006ChevroletTrailblazer EXTN/AIncludes Connector; Exc. Climate Control
2006GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2006GMCEnvoy XLN/AIncludes Connector; Exc. Climate Control
2005BuickRainierN/AIncludes Connector; Exc. Climate Control
2005ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2005ChevroletTrailblazer EXTN/AIncludes Connector; Exc. Climate Control
2005GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2005GMCEnvoy XLN/AIncludes Connector; Exc. Climate Control
2005GMCEnvoy XUVN/AIncludes Connector; Exc. Climate Control
2004BuickRainierN/AIncludes Connector; Exc. Climate Control
2004ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2004ChevroletTrailblazer EXTN/AIncludes Connector; Exc. Climate Control
2004GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2004GMCEnvoy XLN/AIncludes Connector; Exc. Climate Control
2004GMCEnvoy XUVN/AIncludes Connector; Exc. Climate Control
2004OldsmobileBravadaN/AIncludes Connector; Exc. Climate Control
2003ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2003ChevroletTrailblazer EXTN/AIncludes Connector; Exc. Climate Control
2003GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2003GMCEnvoy XLN/AIncludes Connector; Exc. Climate Control
2003OldsmobileBravadaN/AIncludes Connector; Exc. Climate Control
2002ChevroletTrailblazerN/AIncludes Connector; Exc. Climate Control
2002ChevroletTrailblazer EXTN/AIncludes Connector; Exc. Climate Control
2002GMCEnvoyN/AIncludes Connector; Exc. Climate Control
2002GMCEnvoy XLN/AIncludes Connector; Exc. Climate Control
2002OldsmobileBravadaN/AIncludes Connector; Exc. Climate Control
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
3A129615-8109515373437DR755RU377RU377TRU1070