Four Seasons 36947 Engine Cooling Fan Clutch

Reliable Engine Cooling Fan Clutch for Chevrolet and GMC Vehicles

The Four Seasons Fan Clutch 36947 is engineered to provide dependable cooling performance for severe duty applications. Designed specifically for select Chevrolet, GMC, Hummer, and Isuzu 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 heavy truck and off-road applications
• Non-electronic, mechanical operation for reliable performance
• Four bolt holes with M10 x 1.5 thread for secure mounting
• Compatible with Chevrolet Canyon, Colorado, GMC Canyon, Hummer H3, H3T, Isuzu i-350, i-370, P30, and P3500 models

Four Seasons Fan Clutch Product Line Overview

The Four Seasons Fan Clutch line focuses on providing engine cooling fan clutches designed for severe duty and truck fan drive applications. This product line emphasizes durability and performance, meeting or exceeding OEM specifications to maintain proper engine temperature and prevent overheating in demanding environments.

Detailed Specifications and Features

This Four Seasons Fan Clutch 36947 features a raw aluminum finish and a clutch maximum diameter of 6.45 inches (163.8 mm). It has a mounting hole quantity of four with a hex mounting type, ensuring a secure fit. The distance from the clutch to the mounting flange is 1.25 inches, and the overall height measures 3.27 inches (82.9 mm). The fan bolt circle diameter is 3.25 inches (82.6 mm), and the pilot diameter is 1.18 inches (30 mm) with a pilot depth of 0.7 inches (17.8 mm). This clutch operates with a reverse rotation and is designed for severe duty use, making it suitable for heavy-duty cooling needs.

Common Applications and Problem Solving

• Prevents engine overheating in Chevrolet Colorado and GMC Canyon trucks
• Maintains optimal cooling performance in Hummer H3 and H3T models
• Supports heavy-duty cooling requirements for Isuzu i-350 and i-370 vehicles
• Replaces worn or failing fan clutches in P30 and P3500 chassis
• Improves engine temperature regulation under severe operating conditions

Installation Notes and Tips

Installation requires removal of the existing fan clutch and proper alignment of the four mounting bolts with M10 x 1.5 threads. Note that mounting hardware is not included with this part. Ensure the hex mounting type is compatible with your vehicle’s fan assembly. Verify the rotation direction matches your engine’s requirements before installation.

Quality Assurance and Warranty

The Four Seasons Fan Clutch 36947 is a new, performance-rated part that meets or exceeds OEM standards for severe duty applications. Manufactured with precision aluminum components, it is built to withstand demanding engine cooling conditions. While specific warranty details are not provided, Four Seasons products typically come with manufacturer-backed quality assurance to ensure reliability and durability.