Four Seasons 20729 HVAC Blower Motor Resistor

Overview

Restore HVAC blower speed control with this Four Seasons HVAC blower motor resistor, part number 20729. It is built for automatic temperature control systems and matches the electrical connector and terminal layout needed for a proper repair.

Compatible With Ford Crown Victoria, Lincoln Town Car, Mercury Grand Marquis, and Mercury Colony Park applications that use ATC. This Four Seasons 20729 resistor is a direct-fit service part for common blower motor speed issues in these vehicles.

Key Features

• HVAC blower motor resistor for automatic temperature control systems
• Female connector with square connector shape
• 5-terminal design for the specified electrical configuration
• Four Seasons Motor Resistor line
• Part number 20729 for accurate ordering and replacement

Detailed Description

The Four Seasons 20729 HVAC blower motor resistor is engineered for vehicles equipped with ATC, where blower speed is controlled through the resistor circuit rather than a simple manual switch. The female, square connector and 5-terminal layout help ensure the replacement matches the original electrical interface. This part number 20729 is listed for 1991-1999 Ford, Lincoln, and Mercury applications, including Ford Crown Victoria, Lincoln Town Car, Mercury Grand Marquis, and Mercury Colony Park models with automatic temperature control.

Four Seasons backs this Motor Resistor line with more than 50 years of mobile A/C experience and tests its products for dependable operation. If you are replacing a failed HVAC blower motor resistor on a Ford Crown Victoria, Lincoln Town Car, or Mercury Grand Marquis, this part provides the correct electrical configuration for the listed ATC applications.

What It Fixes

• Blower motor only working on certain speeds
• No airflow from the HVAC vents due to resistor failure
• Intermittent cabin fan operation
• Loss of proper automatic temperature control blower output
• Electrical mismatch from an incorrect replacement resistor

Installation Notes

Verify the vehicle uses automatic temperature control and compare the connector shape, terminal count, and original resistor layout before installation. Confirm fitment by year, make, model, and HVAC system configuration. Part number 20729 should be matched to the listed application data for the best repair result.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation. The Motor Resistor line is supported by the company’s long history in mobile air conditioning and climate control components.