A-NAFTULY Blower Motor Resistor Kit for Chevy/GMC 2004-2012 — Direct-Fit with Harness, Restores Fan Speeds

The A-NAFTULY 973-434 blower motor resistor kit restores variable fan speeds for compatible Chevy, GMC and Isuzu cabins by directly replacing the faulty resistor assembly.

If your vehicle’s HVAC blower only runs on one speed, doesn’t respond to the control knob, or stops working altogether, a failed blower motor resistor is a common cause. The A-NAFTULY 973-434 kit is built to match the original dimensions and electrical connections for a direct fit on model years listed below, offering an affordable repair that returns full fan speed control without complex electrical work.

Which vehicles and part numbers does this resistor kit fit?

This kit is designed for specific Chevrolet, GMC and select Isuzu models and replaces known OEM part numbers so you can verify compatibility before purchase. Always compare the part shape and connector to your existing resistor assembly to confirm fit.

• Chevrolet Colorado: 2004–2012
• GMC Canyon: 2004–2012
• Chevrolet SSR: 2003–2006
• Isuzu models: i-280/i-350 (2006), i-290/i-370 (2007–2008)
• Replaces OEM numbers: 973-434 and 15218254

How does this replacement improve HVAC performance?

A failing resistor can prevent fan speed changes or stop the blower entirely; installing this replacement restores the electrical path that controls fan resistances. Once installed, the HVAC system should regain the full range of blower speeds and more consistent airflow at each setting.

• Restores all fan speed settings controlled by the dash switch
• Reduces blown fuses caused by damaged resistor elements
• Improves occupant comfort by re-enabling proper airflow modulation

Is installation difficult and what tools are required?

Installation is straightforward for most DIYers because the resistor mounts under the passenger-side dash and uses the factory harness. You’ll typically only need basic hand tools and a few minutes to remove the old module and fasten the new one in place.

• Located on lower passenger side behind the glove box area
• Remove mounting screws, unplug harness, swap assemblies
• No specialty tools or advanced electrical skills necessary

What does the kit include and what warranty is offered?

The package contains the blower motor resistor assembly and a harness, so you receive the connector and mounting-ready module needed for replacement. The product is backed by a manufacturer warranty and customer support for peace of mind after installation.

• One AC blower motor resistor kit with harness included
• Meets or exceeds OEM fit standards and material strength
• 18-month limited warranty and 24/7 customer service availability

Who is this for: This A-NAFTULY resistor kit suits owners and technicians working on the specified Chevy, GMC or Isuzu models who want a cost-effective, OEM-style repair to restore proper blower function. It’s ideal for DIY mechanics comfortable with basic dashboard access, fleet maintenance shops needing a reliable replacement part, and anyone troubleshooting inconsistent HVAC blower speeds.