Dorman HVAC Blower Motor Resistor Kit 973-426 with Harness Pigtail Restores Multi-Speed Fan Control

If your vehicle's HVAC fan only works on one speed or has stopped responding to the speed selector, a burned or corroded blower motor resistor is often the cause. The Dorman 973-426 kit includes a resistor and a harness pigtail engineered to match original equipment fit and function for specific years, makes and models. Designed and tested by Dorman engineers, this kit is meant to make the repair straightforward and to bring your heating and cooling system back to normal operation.

How does the Dorman 973-426 kit fix blower fan speed problems?

This kit replaces the resistor assembly that controls blower motor speeds, along with the electrical pigtail that commonly fails from heat or corrosion. Installing the kit reestablishes the electrical path the HVAC control uses to step through speeds, allowing the fan to respond correctly to the selector. The result is restored multi-speed control and reliable airflow from the HVAC system.

• Includes both resistor and harness pigtail for a complete repair.
• Replaces overheated, corroded or damaged OEM components.
• Restores low-to-high speed function of the blower motor.
• Engineered to fit vehicle-specific locations and connectors.

What vehicles and situations is this part compatible with?

Dorman publishes application details for each part number; compatibility depends on vehicle year, make, model and trim. Use the vehicle lookup tool or consult fitment charts to confirm the 973-426 matches your car. This kit is intended for vehicles where the original resistor and pigtail design matches Dorman's replacement pattern.

• Fits select vehicles—verify with vehicle lookup before ordering.
• Suitable when original resistor shows heat damage, melting or corrosion.
• Works when blower motor runs only on one speed or not at all.
• Common repair for older connectors that suffer electrical failure over time.

How difficult is the installation, and what should I expect?

Installation is typically a straightforward, vehicle-level repair that can be completed with basic hand tools. The blower resistor is usually accessible from under the dash or behind the glove box; the harness pigtail connects to the resistor and the vehicle wiring. If you can follow simple automotive procedures and disconnect a battery, you can often complete the swap yourself or have it installed quickly by a technician.

• Basic tools and a safe, level workspace are usually sufficient.
• Disconnect battery power before handling HVAC electrical components.
• Replacement often requires removing a small trim panel or glove box for access.
• Follow vehicle service instructions or consult a technician if unsure.

What quality assurances come with this Dorman replacement?

Dorman designs and inspects replacement parts with input from engineers and quality specialists to provide reliable aftermarket alternatives. The 973-426 is built to match original form and function, offering a practical solution when the OE resistor or connector fails. While aftermarket parts vary, Dorman emphasizes fitment accuracy and component durability in this kit.

• Manufactured with quality controls overseen by Dorman engineering teams.
• Built to perform like the original equipment part in compatible vehicles.
• Sold as a complete kit to reduce installation guesswork and additional purchases.
• Recommended to verify fit using vehicle make, model and trim lookup tools.

Who is this for: The Dorman 973-426 HVAC Blower Motor Resistor Kit is for vehicle owners, DIY mechanics and repair shops needing a reliable, direct-style replacement for a failing blower motor resistor and its harness pigtail. If your HVAC fan exhibits limited speed options, intermittent operation, or the resistor shows visible heat or connector damage, this kit provides a practical repair option designed to restore normal airflow control when matched to the correct vehicle application.