Four Seasons 36997 Engine Cooling Fan Clutch

Overview of Four Seasons Fan Clutch 36997

The Four Seasons Fan Clutch 36997 is engineered for reliable engine cooling performance in select Volvo vehicles. Designed specifically for Volvo 760 and 780 models, this engine cooling fan clutch ensures proper fan operation to maintain optimal engine temperature under various driving conditions.

• Constructed from durable aluminum material for strength and heat resistance
• Standard duty clutch type compatible with 5" and 6" import fans
• Flange mounting type with 4 bolt holes and M6 x 1.0 threaded bolt holes
• Non-electronic, mechanical operation for consistent performance
• Meets or exceeds OEM specifications for fit and function

Four Seasons Fan Clutch Product Line Details

The Four Seasons Fan Clutch product line focuses on standard duty fan clutches designed to provide dependable cooling system operation. This line includes fan clutches that are performance rated and built to meet OEM standards, ensuring compatibility and durability. The 36997 model fits within this line as a new, non-electronic clutch suitable for specific Volvo applications requiring precise fan engagement.

Technical Specifications and Features

This fan clutch features a 6.65 inch maximum diameter and a 5.35 inch (135.9 mm) fan bolt circle, designed to fit standard Volvo fan assemblies. The clutch has a flange mounting type with 4 bolt holes and a mounting diameter of 2.73 inches (69 mm). The overall height is 2.86 inches (72.6 mm), with a distance from clutch to mounting flange of 2.29 inches. The clutch operates with standard rotation and includes a pilot depth of 0.2 inches and pilot diameter of 0.59 inches. The raw aluminum color finish reflects its durable aluminum construction. Mounting hardware is not included with this part.

Applications and Problem Solving

• Replaces worn or failing fan clutches in Volvo 760 and 780 models
• Resolves engine overheating caused by improper fan engagement
• Eliminates excessive fan noise due to slipping or stuck clutches
• Improves engine cooling efficiency for better performance and longevity
• Addresses inconsistent fan operation affecting HVAC and engine temperature

Installation Notes and Tips

Installation requires removal of the existing fan clutch and proper alignment of the flange mounting holes. Use M6 x 1.0 bolts (not included) to secure the clutch. Verify the clutch rotation matches the original part (standard rotation). Ensure the fan blade assembly is compatible with the 5.35 inch bolt circle diameter. It is recommended to inspect the cooling system components during installation for any additional wear or damage.

Quality Assurance and Warranty

The Four Seasons Fan Clutch 36997 is a new, performance-rated part that meets or exceeds OEM specifications for Volvo 760 and 780 models. Manufactured with precision aluminum construction, it is designed for durability and consistent operation. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.