Dorman 973-537 HVAC Blower Motor Resistor Kit

Brand Dorman 973-537
Connector Gender Female
Connector Quantity 0
Gasket or Seal Included No
Mounting Hardware Included No
Mounting Hole Quantity 2
Package Contents 1 Blower Motor Resistor; 1 Wire Harness
Terminal Gender Male
Terminal Quantity 3
Terminal Type Blade
Wire Quantity 3
Wiring Harness Included Yes
Wiring Harness Length 6
Fits Chevrolet and GMC · 138 vehicles

Resistor kit. Includes a resistor and harness pigtail for a complete electrical repair.

Direct replacement. Replaces an overheated or corroded original equipment resistor.

Harness included. Comes with a wire harness pigtail for easier installation.

Cross-references 3A1030, 15551633 and DR791 for the same application. See all 5.

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Dorman 973-537 HVAC Blower Motor Resistor Kit

Dorman 973-537 is an HVAC blower motor resistor kit that includes the resistor and a replacement harness pigtail for vehicles with overheated or corroded original connectors. It is built for direct repair of blower speed control issues on select Chevrolet and GMC trucks and SUVs, including Chevrolet Blazer and GMC Jimmy applications.

Key Features

  • HVAC blower motor resistor kit for blower speed control repair
  • Includes a resistor and wire harness pigtail for connector repair
  • 3-wire, 3-terminal design with blade terminals
  • Female connector and male terminals for the specified application
  • 6-inch wiring harness length
  • 2 mounting holes for installation on the original location
  • Direct replacement for select Chevrolet and GMC HVAC systems

Detailed Description

This Dorman blower motor resistor kit is made for vehicles where the original resistor has failed from heat damage or corrosion at the connector. Part number 973-537 restores blower motor speed operation by replacing the resistor and the damaged harness section together, helping address electrical resistance problems at the HVAC connector. It cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Common search terms for this part include HVAC blower motor resistor kit for 1991-1994 Chevrolet Blazer, GMC Jimmy blower resistor replacement, and Dorman 973-537 blower motor resistor harness repair.

What It Helps Fix

  • Blower motor works on only one speed
  • Intermittent HVAC fan operation
  • Burned, overheated, or corroded resistor connector
  • No cabin airflow from a failed blower speed circuit
  • Electrical resistance issues at the blower resistor harness

Installation Notes and Tips

  • Verify the vehicle uses the listed HVAC resistor configuration before installation.
  • Inspect the blower motor connector and surrounding wiring for heat damage before replacing the part.
  • Use the original mounting points with the 2-hole layout.
  • Confirm terminal orientation and harness routing match the factory setup.
  • For fitment, this part is used on applications such as Fits 1992-1994 Chevrolet Blazer, N/A; Fits 1991-1994 Chevrolet C1500, N/A; Fits 1992-1994 GMC Yukon, N/A; and Fits 1991 Chevrolet Blazer, N/A for models without air conditioning.

Quality Assurance

Dorman manufactures replacement electrical and HVAC components for service repairs on original equipment applications. Part number 973-537 is built to replace the failed resistor and damaged connector section on the listed Chevrolet and GMC vehicles, including Chevrolet Blazer and GMC Jimmy platforms.

This part fits 138 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1994ChevroletBlazerN/A—
1994ChevroletC1500N/A—
1994ChevroletC1500 SuburbanN/A—
1994ChevroletC2500N/A—
1994ChevroletC2500 SuburbanN/A—
1994ChevroletC3500N/A—
1994ChevroletK1500N/A—
1994ChevroletK1500 SuburbanN/A—
1994ChevroletK2500N/A—
1994ChevroletK2500 SuburbanN/A—
1994ChevroletK3500N/A—
1994GMCC1500N/A—
1994GMCC1500 SuburbanN/A—
1994GMCC2500N/A—
1994GMCC2500 SuburbanN/A—
1994GMCC3500N/A—
1994GMCK1500N/A—
1994GMCK1500 SuburbanN/A—
1994GMCK2500N/A—
1994GMCK2500 SuburbanN/A—
1994GMCK3500N/A—
1994GMCYukonN/A—
1993ChevroletBlazerN/A—
1993ChevroletC1500N/A—
1993ChevroletC1500 SuburbanN/A—
1993ChevroletC2500N/A—
1993ChevroletC2500 SuburbanN/A—
1993ChevroletC3500N/A—
1993ChevroletK1500N/A—
1993ChevroletK1500 SuburbanN/A—
1993ChevroletK2500N/A—
1993ChevroletK2500 SuburbanN/A—
1993ChevroletK3500N/A—
1993GMCC1500N/A—
1993GMCC1500 SuburbanN/A—
1993GMCC2500N/A—
1993GMCC2500 SuburbanN/A—
1993GMCC3500N/A—
1993GMCK1500N/A—
1993GMCK1500 SuburbanN/A—
1993GMCK2500N/A—
1993GMCK2500 SuburbanN/A—
1993GMCK3500N/A—
1993GMCYukonN/A—
1992ChevroletBlazerN/A—
1992ChevroletC1500N/A—
1992ChevroletC1500 SuburbanN/A—
1992ChevroletC2500N/A—
1992ChevroletC2500 SuburbanN/A—
1992ChevroletC3500N/A—
1992ChevroletK1500N/A—
1992ChevroletK1500 SuburbanN/A—
1992ChevroletK2500N/A—
1992ChevroletK2500 SuburbanN/A—
1992ChevroletK3500N/A—
1992GMCC1500N/A—
1992GMCC1500 SuburbanN/A—
1992GMCC2500N/A—
1992GMCC2500 SuburbanN/A—
1992GMCC3500N/A—
1992GMCK1500N/A—
1992GMCK1500 SuburbanN/A—
1992GMCK2500N/A—
1992GMCK2500 SuburbanN/A—
1992GMCK3500N/A—
1992GMCYukonN/A—
1991ChevroletBlazerN/ACompatible with models that do not have air conditioning.
1991ChevroletC1500N/A—
1991ChevroletC2500N/A—
1991ChevroletC3500N/A—
1991ChevroletK1500N/ACompatible with models that do not have air conditioning.
1991ChevroletK2500N/ACompatible with models that do not have air conditioning.
1991ChevroletK3500N/ACompatible with models that do not have air conditioning.
1991ChevroletR1500 SuburbanN/ACompatible with models that do not have air conditioning.
1991ChevroletR2500 SuburbanN/ACompatible with models that do not have air conditioning.
1991ChevroletR3500N/ACompatible with models that do not have air conditioning.
1991ChevroletV1500 SuburbanN/ACompatible with models that do not have air conditioning.
1991ChevroletV2500 SuburbanN/ACompatible with models that do not have air conditioning.
1991ChevroletV3500N/ACompatible with models that do not have air conditioning.
1991GMCC1500N/A—
1991GMCC2500N/A—
1991GMCC3500N/A—
1991GMCJimmyN/ACompatible with models that do not have air conditioning.
1991GMCK1500N/ACompatible with models that do not have air conditioning.
1991GMCK2500N/ACompatible with models that do not have air conditioning.
1991GMCK3500N/ACompatible with models that do not have air conditioning.
1991GMCR1500 SuburbanN/ACompatible with models that do not have air conditioning.
1991GMCR2500 SuburbanN/ACompatible with models that do not have air conditioning.
1991GMCR3500N/ACompatible with models that do not have air conditioning.
1991GMCV1500 SuburbanN/ACompatible with models that do not have air conditioning.
1991GMCV2500 SuburbanN/ACompatible with models that do not have air conditioning.
1991GMCV3500N/ACompatible with models that do not have air conditioning.
1990ChevroletBlazerN/Aw/Heavy Duty Heater
1990ChevroletR1500 SuburbanN/Aw/Heavy Duty Heater
1990ChevroletR2500 SuburbanN/Aw/Heavy Duty Heater
1990ChevroletR3500N/Aw/Heavy Duty Heater
1990ChevroletV1500 SuburbanN/Aw/Heavy Duty Heater
1990ChevroletV2500 SuburbanN/Aw/Heavy Duty Heater
1990ChevroletV3500N/Aw/Heavy Duty Heater
1990GMCJimmyN/Aw/Heavy Duty Heater
1990GMCR1500 SuburbanN/Aw/Heavy Duty Heater
1990GMCR2500 SuburbanN/Aw/Heavy Duty Heater
1990GMCR3500N/Aw/Heavy Duty Heater
1990GMCV1500 SuburbanN/Aw/Heavy Duty Heater
1990GMCV2500 SuburbanN/Aw/Heavy Duty Heater
1990GMCV3500N/Aw/Heavy Duty Heater
1989ChevroletBlazerN/Aw/Heavy Duty Heater
1989ChevroletR1500 SuburbanN/Aw/Heavy Duty Heater
1989ChevroletR2500N/Aw/Heavy Duty Heater
1989ChevroletR2500 SuburbanN/Aw/Heavy Duty Heater
1989ChevroletR3500N/Aw/Heavy Duty Heater
1989ChevroletV1500 SuburbanN/Aw/Heavy Duty Heater
1989ChevroletV2500 SuburbanN/Aw/Heavy Duty Heater
1989ChevroletV3500N/Aw/Heavy Duty Heater
1989GMCJimmyN/Aw/Heavy Duty Heater
1989GMCR1500 SuburbanN/Aw/Heavy Duty Heater
1989GMCR2500N/Aw/Heavy Duty Heater
1989GMCR2500 SuburbanN/Aw/Heavy Duty Heater
1989GMCR3500N/Aw/Heavy Duty Heater
1989GMCV1500 SuburbanN/Aw/Heavy Duty Heater
1989GMCV2500 SuburbanN/Aw/Heavy Duty Heater
1989GMCV3500N/Aw/Heavy Duty Heater
1988ChevroletBlazerN/Aw/Heavy Duty Heater
1988ChevroletR10 SuburbanN/Aw/Heavy Duty Heater
1988ChevroletR20N/Aw/Heavy Duty Heater
1988ChevroletR20 SuburbanN/Aw/Heavy Duty Heater
1988ChevroletR30N/Aw/Heavy Duty Heater
1988ChevroletV10 SuburbanN/Aw/Heavy Duty Heater
1988ChevroletV20 SuburbanN/Aw/Heavy Duty Heater
1988ChevroletV30N/Aw/Heavy Duty Heater
1988GMCJimmyN/Aw/Heavy Duty Heater
1988GMCR1500 SuburbanN/Aw/Heavy Duty Heater
1988GMCR2500N/Aw/Heavy Duty Heater
1988GMCR2500 SuburbanN/Aw/Heavy Duty Heater
1988GMCR3500N/Aw/Heavy Duty Heater
1988GMCV1500 SuburbanN/Aw/Heavy Duty Heater
1988GMCV2500 SuburbanN/Aw/Heavy Duty Heater
1988GMCV3500N/Aw/Heavy Duty Heater
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
3A103015551633DR791RU402RU904