Four Seasons 36901 Engine Cooling Fan Clutch

Reliable Engine Cooling Fan Clutch for Chevrolet, GMC, and Jeep

The Four Seasons Fan Clutch 36901 is designed to provide dependable engine cooling performance for select Chevrolet, GMC, and Jeep models. Engineered with durable aluminum and a standard duty style, this fan clutch helps maintain optimal engine temperature under various driving conditions.

• Constructed from lightweight aluminum for durability
• Standard duty, non-electronic fan clutch design
• Four bolt holes and mounting holes for secure flange installation
• Compatible with Chevrolet S10, S10 Blazer, S15, S15 Jimmy, GMC models, and Jeep Cherokee, CJ5, CJ7, Comanche, Scrambler, Wagoneer, Wrangler
• Meets or exceeds OEM specifications for reliable fit and function
• Performance rated for consistent engine cooling
• Raw aluminum color with a 5.99-inch clutch diameter

About the Four Seasons Fan Clutch Product Line

The Four Seasons Fan Clutch line focuses on providing standard and thermal fan clutches designed to meet OEM requirements. This product line emphasizes durability and performance, offering both non-thermal and standard thermal clutch types. The 36901 model is a non-electronic, standard duty clutch that fits a range of popular truck and SUV models, ensuring proper fan engagement and engine temperature regulation.

Detailed Product Description

The Four Seasons Fan Clutch 36901 features a flange mounting type with four bolt holes and a 5/16-18 threaded hole size, ensuring a secure and precise fit. The clutch has a maximum diameter of 5.99 inches and an overall height of 3.11 inches (79 mm). Its pilot depth measures 1.03 inches, with a pilot diameter of 0.63 inches, designed to align accurately with the mounting flange. The clutch operates with standard rotation and is non-electronic, making it suitable for vehicles requiring a mechanical fan clutch. The raw aluminum finish provides corrosion resistance and a clean appearance under the hood.

Common Applications and Issues Addressed

• Replaces worn or failing fan clutches causing engine overheating
• Restores proper fan engagement to improve cooling efficiency
• Eliminates excessive fan noise from slipping or stuck clutches
• Prevents premature engine wear due to inadequate cooling
• Ensures consistent engine temperature for reliable vehicle operation

Installation Notes and Tips

Installation requires removal of the existing fan clutch and proper alignment of the flange mounting holes. Note that mounting hardware is not included and must be sourced separately. Verify bolt thread size (5/16-18) and torque specifications according to vehicle manufacturer guidelines. Ensure the clutch is installed with the correct rotation direction (standard rotation) to avoid premature wear or failure.

Quality Assurance and Warranty

This Four Seasons Fan Clutch 36901 is a new, performance-rated part that meets or exceeds OEM standards for fit and function. It is designed to provide reliable engine cooling performance for Chevrolet, GMC, and Jeep vehicles. While specific warranty details are not provided, Four Seasons products typically come with manufacturer-backed quality assurance to support long-term durability and customer satisfaction.