A-NAFTULY HVAC Blower Motor Resistor Kit 15-81773 with Harness — Direct-Fit OEM Replacement for 2003–2013 GM

This A-NAFTULY 15-81773 HVAC blower motor resistor kit with harness restores your vehicle's HVAC fan speed control so vents run at all speeds again.

If the heater or air conditioner in your Chevy, GMC or Cadillac only works on one speed or has stopped blowing air entirely, a failed blower motor resistor is a common cause. This direct-replacement kit (OEM references include 15-81773, 89019351, 89018778 and many cross-references) is built to meet factory fit and function and includes the harness needed for a straightforward swap. It fits a wide range of 2003–2013 GM vehicles including Silverado, Sierra, Tahoe, Suburban, Avalanche, Trailblazer, Yukon, Envoy, Impala, Monte Carlo and Escalade models; always confirm part numbers and fitment before purchase.

How will this resistor kit fix my HVAC fan speed problems?

The blower motor resistor regulates the electrical resistance to the fan motor so the blower runs at multiple speeds. When the resistor fails, one or more speeds (often low or medium) stop working or the fan runs only on high. Replacing the faulty resistor restores correct resistance values and returns normal multi-speed operation.

• Replaces worn or burned resistor elements that interrupt speed control.
• Includes matching harness for secure electrical connection.
• Restores all fan speed positions rather than single-speed operation.
• Prevents further strain on the blower motor from incorrect resistances.

Is this an exact or universal replacement and how easy is installation?

This blower control module is designed as a direct OEM-style replacement so it aligns with factory mounting points and electrical connectors. Installation is straightforward: the module sits on the lower passenger side of the HVAC housing and can be swapped using basic hand tools. No advanced diagnosis or vehicle programming is required for typical replacements.

• Direct-fit shape and connector: matches original mounting and plug orientation.
• Simple removal: remove screws, unplug harness, swap the unit, then secure.
• No special tools or programming needed for most applications.
• Reference list provided to confirm compatibility with your model/year.

Which vehicles and part numbers does this kit support?

The kit fits many GM models from the early 2000s through the early 2010s—see the cross-reference list below to confirm compatibility with your vehicle. Always check the part's appearance, connector shape and OEM number on your existing resistor to ensure a match before installing.

• Compatible with Chevrolet: Silverado, Tahoe, Suburban, Avalanche, Trailblazer, Impala, Monte Carlo.
• Compatible with GMC: Sierra, Yukon, Envoy and other listed models within provided years.
• Fits Cadillac Escalade, EXT, ESV models in listed years.
• Cross-references: 15-81773, 1581773, 89019351, 89018778, 19260762 and many OEM numbers.

What does the package include and what warranty is offered?

The box contains one A-NAFTULY blower motor resistor kit complete with the harness required for installation. The product is tested to meet or exceed OEM standards and comes with an 18-month warranty and customer support from A-NAFTULY if you run into issues or need help with fitment.

• Includes: 1 x blower motor resistor kit with harness.
• Quality: built to OEM-style specifications and tested for durability.
• Support: 24/7 customer service and an 18-month limited warranty.
• Advice: verify part numbers and vehicle fitment before installing.

Who is this for: Drivers and mechanics who own compatible Chevy, GMC or Cadillac models from the 2003–2013 range and need a reliable, OEM-style replacement for a malfunctioning blower motor resistor. This kit suits DIY enthusiasts seeking a quick, tool-minimal repair and professional shops replacing failed HVAC components to restore proper fan speed control.