Dorman 973-566 HVAC Blower Motor Resistor Kit

HVAC Blower Motor Resistor Kit for OE Repair

Dorman 973-566 is an HVAC blower motor resistor kit that replaces an overheated or corroded original resistor on select GM vehicles. It includes the resistor and a harness pigtail to restore blower speed control and repair heat-damaged connector terminals.

Key Features

• HVAC blower motor resistor kit for electrical connector repair
• Includes a replacement resistor and wire harness pigtail
• 7-wire harness with blade terminals and male/female terminal ends
• 2 connector design with 2 mounting holes for direct service replacement
• 6-inch wiring harness length for connector repair applications
• Fits select Buick LeSabre, Cadillac DeVille, Cadillac Seville, Pontiac Bonneville, and Oldsmobile Aurora models

Detailed Description

Built for HVAC electrical repair, Dorman 973-566 addresses common blower motor resistor failures caused by heat damage, corrosion, or connector wear. This kit is a practical replacement for vehicles that use electronic auto/auxiliary control, helping restore proper blower fan operation across the speed settings. It is a direct-fit service part for select 2000-2005 Buick LeSabre, 2000-2005 Cadillac DeVille, 1998-2004 Cadillac Seville, 2000-2005 Pontiac Bonneville, and 2001-2003 Oldsmobile Aurora applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Blower motor speeds that stop working or operate intermittently
• Heat-damaged resistor connectors or melted pigtails
• Corroded HVAC electrical terminals
• Loss of cabin airflow control through the fan switch
• Resistor failure caused by overheated original equipment components

Installation Notes and Tips

Inspect the blower motor connector, resistor mounting area, and surrounding wiring before installation. Replace any damaged terminals or heat-affected wiring in the circuit so the new resistor can operate correctly. Confirm the vehicle uses electronic auto/auxiliary control and match the connector style, terminal count, and harness layout before service. Fits 2000-2005 Buick LeSabre, N/A; Fits 2000-2005 Cadillac DeVille, N/A; Fits 1998-2004 Cadillac Seville, N/A; Fits 2000-2005 Pontiac Bonneville, N/A; Fits 2001-2003 Oldsmobile Aurora, N/A.

Quality Assurance

Dorman is known for replacement parts that address common OE failure points with application-specific service solutions. Part number 973-566 is built as a repair kit for the resistor and connector interface, helping restore HVAC blower control on the listed vehicles.