Engine Cooling Fan Control Relay Module For Ford Crown Lincoln Mercury 940002904

Engine Cooling Fan Control Relay Module for Ford Crown Lincoln Mercury 940002904

This engine cooling fan control relay module, referenced as 940002904, switches power to the cooling fan so it runs at the commanded speed and keeps coolant temperature in range.

Overview

This cooling fan control relay module replaces a failed fan relay on Ford, Lincoln, and Mercury vehicles calling for part 940002904. The module manages fan activation so the engine cooling fan engages when coolant temperature or A/C demand requires airflow. It is the piece to reach for when the fan stops cycling or runs constantly.

Built For Performance

• Solid-state switching for smooth, repeatable fan activation
• Sealed housing guards internal electronics from heat and moisture
• Factory-style connector layout for direct plug-in replacement
• Rated to handle the current draw of the cooling fan circuit
• Compact footprint matches the original mounting point

Fits These Machines

• for Ford
• for Lincoln
• for Mercury

On-The-Job Use

• Resolving an engine cooling fan that never turns on and lets temperature climb
• Fixing a fan that stays on full time and drains the battery
• Replacing a relay module that has overheated or corroded at the terminals
• Cooling system service on older Ford, Lincoln, and Mercury cars

Specs At A Glance

Good To Know

Q: How do I know the relay module is the fault and not the fan motor? A: Test for power at the fan connector with the module commanded on. No power points to the relay module; power present but no fan movement points to the motor.

Q: Can a bad fan relay module cause overheating in traffic? A: Yes, when airflow depends on the electric fan and the relay will not close, temperature rises at low speed or while stopped. Replacing the module restores fan operation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.