Dorman HVAC Blower Motor Resistor Kit — 973-582 direct-fit with harness pigtail, restores multi-speed fan control

The Dorman 973-582 HVAC blower motor resistor kit is a direct-replacement resistor and harness pigtail designed to restore proper fan-speed control when the factory resistor has overheated or corroded.

When an HVAC blower motor resistor fails, you may lose one or more fan speeds or experience intermittent blower operation. The Dorman 973-582 kit supplies the resistor module plus the matching harness pigtail so you can replace the worn original equipment components without splicing or improvised wiring. This kit is engineered to match the original fit and function for compatible vehicle applications and is backed by Dorman’s U.S.-based engineering and quality team.

How will this kit fix blower fan speed problems?

Failing resistors commonly cause the blower to run only on high speed or not at all. Replacing the resistor and its corroded or heat-damaged pigtail re-establishes the electrical path that governs multiple fan speeds, returning consistent operation across the blower control settings.

• Includes resistor module and harness pigtail for a complete repair
• Restores multi-speed blower control rather than partial or single-speed function
• Avoids temporary splices by providing a direct-fit replacement harness

Will this part fit my vehicle and how do I confirm fitment?

Dorman designs direct-replacement parts for select years, makes and models; fitment depends on your vehicle’s configuration. Use your vehicle make, model and trim in the online garage or fitment tool to confirm compatibility before purchase.

• Direct-replacement design intended to match original equipment connections
• Check the garage tool with exact year, make and trim for confirmation
• Meant for applications where the original resistor and pigtail have failed

What’s included in the kit and why is the harness pigtail important?

This kit contains the resistor element and the harness pigtail needed for most blower-resistor repairs. The pigtail replaces heat- or corrosion-damaged wiring ends and connectors, preventing poor connections that can cause intermittent operation or premature failure.

• One blower motor resistor sized to match the original equipment specification
• One harness pigtail to replace degraded or melted factory connector ends
• Complete kit reduces the need for additional parts or wiring repairs

How durable and reliable is this Dorman replacement?

Dorman parts are developed with input from engineers and quality specialists in the USA and built to perform like the original equipment they replace. While no aftermarket part can guarantee unlimited lifespan, this kit restores factory-style fit, connection quality and function to address the common causes of blower resistor failure.

• Engineered and quality-checked by Dorman’s U.S.-based teams
• Manufactured to match original performance for restored HVAC operation
• Complete replacement reduces risk of future connector-related failures

Who is this for: This Dorman 973-582 blower motor resistor kit is intended for DIYers, mechanics and fleet technicians repairing vehicle HVAC systems where the original blower resistor or connector has overheated, melted or corroded. If you notice lost fan speeds, intermittent blower operation, or visible damage to the resistor plug, this direct-replacement kit provides the resistor and pigtail needed to restore normal fan control when matched to the correct vehicle fitment.