Four Seasons 36731 Engine Cooling Fan Clutch

Overview of Four Seasons Fan Clutch 36731

The Four Seasons Fan Clutch 36731 is a standard duty engine cooling fan clutch designed for select Ford and Mazda vehicles, including the B2500, F-100 Ranger, and Ranger models. Constructed from durable aluminum, this fan clutch helps regulate engine temperature by controlling the fan's engagement based on operating conditions.

• Material: Aluminum construction for durability and heat resistance
• Mounting Type: Flange with 4 bolt holes (M6 x 1.0 thread)
• Clutch Diameter: 6.65 inches maximum diameter
• Rotation: Standard rotation suitable for specified vehicles
• Non-electronic, standard use type fan clutch
• Meets or exceeds OEM specifications
• Overall height: 3.09 inches (78.6 mm)
• Compatible with Ford B2500, F-100 Ranger, and Mazda Ranger

Four Seasons Fan Clutch Product Line Details

The Four Seasons Fan Clutch product line focuses on reliable engine cooling components designed to meet OEM standards. This line includes standard duty fan clutches like part number 36731, engineered to provide consistent performance and durability for import and domestic vehicles. The fan clutches in this line are constructed with aluminum and designed for flange mounting, ensuring proper fit and function in compatible Ford and Mazda models.

Product Features and Specifications

This engine cooling fan clutch features a flange mounting type with four bolt holes, each threaded M6 x 1.0, allowing secure installation. The clutch has a maximum diameter of 6.65 inches and a fan bolt circle diameter of 6.03 inches (153.2 mm). The distance from the clutch to the mounting flange is 2.53 inches, with an overall height of 3.09 inches (78.6 mm). The clutch is non-electronic and designed for standard rotation, making it suitable for the specified Ford and Mazda vehicles. The raw aluminum color indicates the material's natural finish, contributing to heat dissipation.

Common Applications and Problem Solving

• Regulates engine temperature by engaging and disengaging the cooling fan as needed
• Prevents engine overheating during high load or idle conditions
• Reduces unnecessary fan drag to improve fuel efficiency
• Replaces worn or failing fan clutches causing overheating or noisy operation
• Restores proper cooling system function in Ford B2500, F-100 Ranger, and Mazda Ranger vehicles

Installation Notes and Tips

Installation requires removal of the existing fan clutch and proper alignment of the flange mounting holes. Use the four M6 x 1.0 bolts to secure the clutch firmly to the fan assembly. Note that mounting hardware is not included with this part. Ensure the clutch rotation matches the engine's fan rotation (standard rotation) to avoid damage. 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 36731 is a new, performance-rated part that meets or exceeds OEM specifications for durability and function. Manufactured with precision aluminum components, it is designed to provide reliable engine cooling performance. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.