Replacement RL31370003 Electronic Fan Clutch Assembly with Fan Blade Severe Duty

The Replacement RL31370003 is a severe-duty electronic engine cooling fan clutch assembly designed as a direct-fit OEM replacement. This unit comes complete with the fan blade and features standard (clockwise) rotation, making it a comprehensive, ready-to-install solution for restoring proper engine cooling system performance.

The electronic fan clutch intelligently regulates cooling fan speed in response to engine temperature demands. At lower temperatures, the clutch limits fan engagement to reduce parasitic drag and improve efficiency. As engine heat rises, the clutch increases fan speed to deliver the airflow needed to maintain safe operating temperatures—protecting the engine under heavy load and demanding driving conditions.

Key Features:

• Severe-duty electronic fan clutch design for enhanced durability and reliable thermal regulation
• Includes fan blade — complete assembly for straightforward installation
• Standard (clockwise) rotation
• 7.73-inch fan diameter for optimal airflow coverage
• 4-inch assembly height with 1.5-inch fan mount height
• 4 mounting holes / 4 bolt pattern for secure fitment
• 4.8-inch fan bolt circle
• 5-pin electrical connector included for direct plug-in compatibility
• Cross-reference: Interchange part number 3302
• Direct-fit OEM replacement — no modification required

This fan clutch assembly is engineered to meet or exceed original equipment specifications, ensuring a proper fit and restoring factory-level cooling system performance. Compatible with 6-cylinder 3.0L and 8-cylinder 5.0L engine applications.