Four Seasons 46039 Engine Cooling Fan Clutch

Reliable Engine Cooling Fan Clutch for Chevrolet and GMC Trucks

The Four Seasons Fan Clutch 46039 is engineered to provide dependable cooling performance for Chevrolet and GMC heavy-duty trucks. Designed specifically for severe duty applications, this engine cooling fan clutch ensures optimal temperature regulation under demanding conditions.

Key Features of Four Seasons Fan Clutch 46039

• Constructed from durable aluminum for long-lasting performance
• Severe duty design suitable for heavy truck fan drives
• Non-electronic clutch type for reliable mechanical operation
• Six bolt holes and mounting holes for secure flange installation
• Maximum clutch diameter of 7.4 inches with a 6-inch fan bolt circle
• Standard rotation and flange mounting type
• Compatible with Chevrolet P20, P30, P2500, and P3500 models
• New part that meets or exceeds OEM specifications

About the Four Seasons Fan Clutch Product Line

The Four Seasons Fan Clutch line focuses on providing severe duty and truck fan drive solutions designed to maintain engine cooling efficiency in demanding environments. The 46039 model exemplifies this with its robust aluminum construction and precise fitment, ensuring consistent performance for Chevrolet and GMC trucks requiring reliable cooling fan engagement.

Detailed Product Description

This engine cooling fan clutch features a flange mounting type with six bolt holes and a 5/16-18 threaded bolt hole pattern, allowing for secure attachment to the fan assembly. The clutch has a maximum diameter of 7.4 inches (188 mm) and an overall height of 3.83 inches (97.2 mm), with a pilot depth of 0.66 inches (16.5 mm) and pilot diameter of 0.75 inches. Its raw aluminum color reflects the durable material used, designed to withstand severe operating conditions. The clutch operates with standard rotation and is non-electronic, providing a mechanical solution for engine cooling fan control. This part is new and performance rated, meeting or exceeding OEM standards for Chevrolet and GMC P20, P30, P2500, and P3500 trucks.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating fan engagement
• Reduces unnecessary fan drag to improve fuel efficiency
• Eliminates fan clutch slippage or failure in severe duty conditions
• Restores proper cooling system function in Chevrolet and GMC trucks
• Addresses noisy or inconsistent fan operation

Installation Notes and Tips

Ensure the mounting flange and bolt holes align correctly with the fan assembly on Chevrolet P20, P30, P2500, or P3500 models. This fan clutch requires six bolts with a 5/16-18 thread size (not included). Verify the clutch rotation matches the engine’s standard rotation direction before installation. Proper torque specifications should be followed to secure the clutch without damaging the aluminum housing.

Quality Assurance and Warranty

The Four Seasons Fan Clutch 46039 is a new, performance-rated part that meets or exceeds OEM specifications for severe duty applications. Manufactured with high-quality aluminum and designed for durability, this fan clutch provides reliable engine cooling performance. Warranty details should be confirmed with the product documentation or manufacturer.