HomeHVAC > Motors, Core, Case and Related ComponentsDorman 984-592 HVAC Blower Motor Resistor
Part #: 984-592

Dorman 984-592 HVAC Blower Motor Resistor

⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 3
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Reliable HVAC Blower Motor Resistor for Mazda 3

The Dorman 984-592 HVAC blower motor resistor is designed to restore proper blower motor function in your Mazda 3. Engineered with precise specifications, this resistor ensures consistent airflow control for your vehicle's heating and cooling system.

  • Compatible with Mazda 3 models
  • Three bolt hole mounting for secure installation
  • Blade-type terminals with four male terminals for reliable electrical connection
  • Single rectangular male connector for easy integration
  • Includes blower motor resistor and installation instructions

Product Features and Specifications

This Dorman HVAC blower motor resistor features a three-bolt hole design that provides a stable and secure fit within the blower motor assembly. The resistor uses blade-type terminals, with four male terminals arranged to ensure proper electrical contact and durability. It includes one rectangular male connector, facilitating straightforward connection to the vehicle's wiring harness. Note that this part does not include wiring harnesses or mounting hardware, so existing components must be reused during installation.

Purpose and Common Applications

The Dorman 984-592 blower motor resistor is essential for controlling the speed of the blower motor in the HVAC system of Mazda 3 vehicles. It helps regulate airflow through the heating and cooling vents, contributing to cabin comfort.

  • Restores blower motor speed control when the resistor fails
  • Eliminates issues with blower motor stuck on one speed
  • Resolves intermittent blower motor operation
  • Fixes no airflow from HVAC vents despite blower motor running
  • Addresses overheating or electrical resistance problems in the blower circuit

Installation Notes and Tips

When installing the Dorman 984-592 blower motor resistor, ensure the vehicle is powered off and the battery is disconnected to prevent electrical hazards. The resistor mounts using three bolts; verify the mounting surface is clean and free of debris before installation. Connect the rectangular male connector securely to the vehicle’s wiring harness. Since mounting hardware and wiring harness are not included, retain original components for reinstallation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 984-592 blower motor resistor undergoes rigorous quality control to ensure reliable performance in Mazda 3 HVAC systems. Please refer to Dorman’s official warranty policy for coverage details.

BrandDorman
Part Number984-592
Bolt Hole Quantity3
Terminal TypeBlade
Wire Quantity0
Connector Quantity1
Connector ShapeRectangle
Terminal Quantity4
Connector GenderMale
Terminal GenderMale
Wiring Harness IncludedNo
Mounting Hardware IncludedNo
Package ContentsBlower motor resistor and instructions

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2009Mazda3N/ACompatible with models that do not have air conditioning.
2008Mazda3N/ACompatible with models that do not have air conditioning.
2007Mazda3N/ACompatible with models that do not have air conditioning.
2006Mazda3N/ATo 8/01/05; w/Manual Air Conditioning Controls
2005Mazda3N/AFrom 2/15/05

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

20407BN8P61B15JA1672RU1248RU555

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.