Four Seasons 20440 HVAC Blower Motor Resistor

Four Seasons 20440 Resistor Block Overview

Four Seasons 20440 is a resistor block for HVAC blower motor control in vehicles equipped with Automatic Temperature Control (ATC). It uses a female rectangular connector and 4 terminals to manage blower speed operation in the HVAC system.

Built for 2004-2005 Mitsubishi Endeavor and 2004-2005 Mitsubishi Galant applications, this Four Seasons resistor block is a direct-fit service part for ATC-equipped HVAC systems. The Four Seasons Resistor Block line focuses on replacement electrical control components for heating and air conditioning systems.

Key Features

• HVAC blower motor resistor for blower speed control
• Female rectangular connector for vehicle-specific electrical connection
• 4-terminal design
• Resistor Block product line from Four Seasons
• Fits 2004-2005 Mitsubishi Endeavor with Automatic Temperature Control (ATC)
• Fits 2004-2005 Mitsubishi Galant with Automatic Temperature Control (ATC)

Detailed Description

Four Seasons 20440 is an HVAC blower motor resistor used in ATC-equipped systems to regulate blower motor speed through the vehicle’s climate control circuit. The resistor block design and 4-terminal layout support the electrical switching function required by the HVAC control module. This part cross-references Eastern Catalytic 20440 for the same application.

For Mitsubishi Endeavor and Mitsubishi Galant models from 2004-2005, this part number 20440 is the correct service reference when replacing a failed blower motor resistor in an automatic temperature control system. The part number 20440 is also referenced by OE-style interchange numbers A06790 and JA1882.

What It Helps Fix

• Blower motor stuck on one speed
• Loss of one or more fan speeds
• Intermittent HVAC blower operation
• No cabin airflow from the blower motor control circuit
• Erratic climate control fan response in ATC systems

Installation Notes and Tips

Verify the connector shape, terminal count, and ATC system configuration before installation. Confirm the vehicle application by year, make, and model: Fits 2004-2005 Mitsubishi Endeavor, N/A; Fits 2004-2005 Mitsubishi Galant, N/A. Inspect the blower motor connector and related wiring for heat damage or corrosion before installing the new resistor block.

Quality Assurance

Four Seasons supplies HVAC replacement components for automotive heating and air conditioning service, and this resistor block is built to match the listed electrical and fitment requirements for the specified Mitsubishi applications.