Dorman HVAC Blower Motor Resistor Kit 973-582 — Replacement resistor + harness pigtail, direct-fit restore fan speeds

The Dorman 973-582 HVAC Blower Motor Resistor Kit is a factory-fit replacement resistor and harness pigtail designed to restore blower speed control and HVAC function on compatible vehicles.

If your vehicle's fan only works at one speed, won't run, or has intermittent blower operation, a failed blower motor resistor or its corroded connector is often the culprit. The Dorman 973-582 kit supplies a resistive element and the mating harness pigtail to replace overheated or corroded factory components and bring your heating, ventilation, and air conditioning (HVAC) system back to consistent performance.

How does this kit repair a blower that only runs on one speed?

The blower motor resistor controls current to the blower motor for different fan speeds. When the resistor or its connector fails, several speed settings can be lost and the blower may default to a single speed or stop altogether. Replacing both the resistor and harness pigtail restores proper electrical pathways and fan-speed regulation.

• Includes both resistor and harness pigtail to replace damaged components.
• Direct-replacement design matches original mounting and electrical pin layout.
• Restores multiple fan-speed settings rather than just a single operating speed.

What vehicles and fitment should I check before buying?

Dorman designs this kit for specific years, makes, and models — it’s not a universal part. Fitment varies by vehicle configuration, so confirm compatibility before purchase to ensure the connector type and resistor layout match your car's original equipment.

• Use your vehicle's make, model, and trim in the fitment tool to confirm compatibility.
• Check the original resistor shape and connector style against product photos.
• Some vehicles require different resistor assemblies; verify part number cross-references.

What are the installation and durability features of this Dorman kit?

The kit is engineered to perform like the original part and simplify repair by providing the harness pigtail commonly damaged by heat or corrosion. Installation is typically straightforward for technicians and experienced DIYers, requiring basic hand tools and access to the blower housing.

• Direct replacement form, fit, and function to simplify installation.
• Backed by Dorman engineering and quality specialists in the USA for consistent reliability.
• Often replaces resistors that have failed due to heat, moisture, or connector corrosion.

How can I tell if I need the resistor, the harness, or both?

Visual inspection and simple testing reveal the most likely failure points: a visibly overheated or corroded connector usually means the harness should be replaced, while a burned or cracked resistor element indicates the resistor needs replacement. The Dorman kit includes both parts to address common combined-failure scenarios.

• Inspect for melted plastic, rusted terminals, or discoloration at the connector area.
• Test blower speeds or use a multimeter to check continuity across resistor terminals.
• Replacing both parts prevents repeat failure if corrosion or overheating damaged either component.

Who this is for: The Dorman 973-582 HVAC Blower Motor Resistor Kit is intended for vehicle owners, mechanics, and DIYers who need a reliable, direct-replacement resistor and harness pigtail to restore proper HVAC blower operation on compatible vehicles. Choose this kit if your blower shows lost speeds, erratic performance, or if the original connector shows signs of heat or corrosion; verify fitment with your exact make, model, and trim before ordering.