Four Seasons 36991 Engine Cooling Fan Clutch

Reliable Engine Cooling for Toyota Previa

The Four Seasons Fan Clutch 36991 is designed to provide consistent engine cooling performance for Toyota Previa models. Constructed from durable aluminum, this engine cooling fan clutch ensures efficient heat dissipation and reliable operation under standard use 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 (168.9 mm) overall diameter
• Non-electronic, standard rotation design
• Compatible with Toyota Previa models requiring A - 5" & 6" import clutch type
• Meets or exceeds OEM specifications
• New, performance-rated standard duty clutch

About the Four Seasons Fan Clutch Product Line

The Four Seasons Fan Clutch line offers reliable engine cooling components designed to maintain optimal engine temperature by regulating fan engagement. This Fan Clutch 36991 model fits specific Toyota Previa vehicles and features a flange mounting type with precise dimensions to ensure proper fit and function. The line focuses on standard duty applications with non-electronic clutches, providing a balance of durability and performance for everyday driving conditions.

Product Details and Specifications

This engine cooling fan clutch features a raw aluminum color finish and a flange mounting type with four bolt holes, each threaded M6 x 1.0. The clutch has a maximum diameter of 6.65 inches and a mounting diameter of 4.18 inches (106 mm). The distance from the clutch to the mounting flange is 2.34 inches, with an overall height of 2.91 inches (73.9 mm). It operates with a standard rotation and is designed for use with 5.35 inch (135.9 mm) fan bolt circles. The clutch is non-electronic and meets or exceeds OEM standards, ensuring compatibility and reliable performance for Toyota Previa vehicles.

Common Applications and Problem Solving

• Restores proper fan engagement to prevent engine overheating
• Eliminates excessive fan noise caused by worn or failing clutches
• Improves fuel efficiency by regulating fan operation
• Prevents premature engine wear due to inadequate cooling
• Replaces damaged or seized fan clutches in Toyota Previa models

Installation Notes and Tips

Installation requires removal of the existing fan clutch and mounting hardware, which is not included with this part. Ensure the mounting flange and bolt holes align correctly with the vehicle’s fan assembly. Use appropriate torque specifications for the M6 x 1.0 bolts to secure the clutch. Verify the clutch rotation direction matches the vehicle’s engine requirements. 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 36991 is a new, performance-rated component that meets or exceeds OEM quality standards. Manufactured with precision aluminum materials, it is designed for durability and consistent operation. While specific warranty details are not provided, Four Seasons products typically come with manufacturer-backed quality assurance to support reliable engine cooling performance in Toyota Previa vehicles.