Four Seasons 20734 HVAC Blower Motor Resistor

Four Seasons 20734 HVAC Blower Motor Resistor

The Four Seasons 20734 HVAC blower motor resistor restores proper blower fan speed control in vehicles that use a 4-terminal, blade-style resistor with a rectangular female connector. Built to meet or exceed OEM requirements, it is a direct-fit electrical replacement for common heating and air conditioning blower circuit repairs.

Four Seasons Motor Resistor components are part of a product line backed by more than 50 years of mobile A/C experience, with engineering and testing focused on dependable operation in everyday HVAC service.

Key Features

• HVAC blower motor resistor for fan speed control
• Female rectangular connector with 4 terminals
• Male blade terminals for secure electrical contact
• Meets or exceeds OEM specifications
• Four Seasons part number 20734
• Cross-references Dorman HELP 20734 and UAC SW11465C for the same application

Detailed Description

The Four Seasons 20734 resistor is used in blower motor circuits to regulate cabin fan speeds in heating and air conditioning systems. When the resistor fails, the blower may work on only one speed, stop working on lower speeds, or operate inconsistently. This replacement is built for vehicles that require a rectangular connector, female plug interface, and 4 blade terminals. If you are searching for an HVAC blower motor resistor for Chevrolet, GMC, or similar vehicle applications, this part number 20734 is a direct reference to verify before ordering.

Because it meets or exceeds OEM standards, this resistor is suited for repair work where accurate electrical resistance and connector fit are important. It is a practical choice for restoring normal blower operation in passenger cabin climate control systems.

Common Problems This Part Can Help Solve

• Blower fan works only on high speed
• Lower fan speeds do not operate
• Intermittent cabin airflow from the vents
• HVAC blower motor speed control failure
• Electrical resistance issues in the blower circuit

Installation Notes and Tips

Confirm connector shape, terminal count, and terminal style before installation. Match the original resistor layout and inspect the blower motor connector for heat damage or corrosion, since a damaged connector can affect the new part’s performance. Verify vehicle application by part number 20734 and compare the original unit to the replacement before final assembly.

Fits 2006-2011 Chevrolet Impala, front HVAC blower resistor application. Fits 2006-2011 Chevrolet Monte Carlo, front HVAC blower resistor application. Fits 2006-2011 Buick Lucerne, front HVAC blower resistor application. Fits 2006-2011 Cadillac DTS, front HVAC blower resistor application.

Quality Assurance

Four Seasons engineers and tests its products for long service life and dependable operation. This HVAC blower motor resistor is built to meet or exceed OEM requirements for fit and function.