Four Seasons 36951 Engine Cooling Fan Clutch

Reliable Engine Cooling Fan Clutch for Dodge, Ford, and Mercury Vehicles

The Four Seasons Fan Clutch 36951 is engineered to provide dependable cooling performance for severe duty applications. Designed for select Dodge, Ford, and Mercury models, this engine cooling fan clutch ensures optimal temperature regulation under demanding conditions.

• Constructed from durable aluminum material for long-lasting use
• Severe duty design suitable for truck fan drives and heavy workloads
• Non-electronic clutch type with a flange mounting system
• Compatible with 4-bolt mounting and 5/16-18 threaded holes
• Meets or exceeds OEM specifications for reliable fit and function
• Fits popular models including Ford F-150, F-250, F-350, Dodge Dakota, and Mercury Grand Marquis

Four Seasons Fan Clutch Product Line Overview

The Four Seasons Fan Clutch line focuses on severe duty and truck fan drive applications, providing components designed to withstand high stress and temperature environments. The 36951 part number is part of this line, offering a robust aluminum construction and precise fitment for vehicles requiring a dependable cooling fan clutch solution.

Product Details and Specifications

This engine cooling fan clutch features a 6.45-inch maximum diameter and a 1.8-inch distance from clutch to mounting flange, ensuring proper alignment and operation. The flange mounting type with 4 bolt holes and 4 mounting holes allows for secure installation. The clutch rotates in reverse (Rev) direction and includes a 3.25-inch fan bolt circle (82.6 mm). The overall height is 3.83 inches (97 mm), with a pilot depth and diameter of 0.63 inches (16 mm). Finished in raw aluminum color, this non-electronic clutch is designed for severe use cases and is performance rated to meet the demands of heavy-duty vehicles.

Compatible Vehicles and Applications

• Dodge Dakota
• Ford Bronco, F-150, F-250, F-250 HD, F-350
• Ford E-150, E-150 Econoline Club Wagon, E-250, E-250 Econoline Club Wagon, E-350, E-350 Econoline Club Wagon
• Mercury Grand Marquis, LTD

Common Issues Addressed by This Fan Clutch

• Overheating due to worn or failing fan clutch
• Reduced engine cooling efficiency in severe duty conditions
• Excessive fan noise or clutch slippage
• Poor airflow regulation affecting engine temperature
• Incompatibility with OEM mounting hardware or dimensions

Installation Notes and Tips

Installation requires removal of the existing fan clutch and proper alignment of the 4-bolt flange mounting system. Note that mounting hardware is not included, so ensure you have the correct bolts (5/16-18 thread) for secure attachment. Verify clutch rotation direction (reverse) matches your vehicle’s requirements. It is recommended to inspect the fan blades and surrounding components during installation for any signs of wear or damage.

Quality Assurance and Warranty

The Four Seasons Fan Clutch 36951 is a new, performance-rated part that meets or exceeds OEM standards. Manufactured with high-quality aluminum and designed for severe duty use, it offers reliable operation for demanding engine cooling needs. Warranty details should be confirmed with the original equipment provider or distributor.