89019088 Blower Motor Resistor with Harness

Key Features

• Direct replacement for the original blower motor resistor and harness.
• Restores fan speed control for the vehicle's HVAC system.
• Includes both the resistor module and the pigtail wiring harness.
• Engineered to match the fit and function of the factory component.

Replaces / Cross-Reference Part Numbers

• 89019088
• 973-405
• 15-81086
• 22807123

Compatibility & Fitment

• Cadillac:
  • Escalade, Escalade ESV, Escalade EXT (2003-2006)
• Chevrolet:
  • Avalanche 1500, 2500 (2003-2006)
  • Silverado 1500, 1500 HD, 2500, 2500 HD, 3500 (2003-2006)
  • Silverado 1500 Classic, 1500 HD Classic, 2500 HD Classic, 3500 Classic (2007)
  • Suburban 1500, 2500 (2003-2006)
  • Tahoe (2003-2006)
• GMC:
  • Sierra 1500, 1500 HD, 2500, 2500 HD, 3500 (2003-2006)
  • Sierra 1500 Classic, 1500 HD Classic, 2500 HD Classic, 3500 Classic (2007)
  • Yukon, Yukon XL 1500, Yukon XL 2500 (2003-2006)

When to Replace

• HVAC fan only operates on the highest speed setting.
• Fan does not work on one or more speed settings.
• No air blows from the vents on any setting.
• Visible corrosion or melting on the original resistor or connector.

Installation Tips

• Disconnect the vehicle's battery before starting the installation.
• The resistor is typically located under the passenger side dashboard, near the blower motor housing.
• Inspect the original connector for signs of heat damage or melting; if damaged, use the included harness for replacement.
• Ensure a secure connection for both the resistor and the wiring harness to prevent premature failure.