Four Seasons 36710 Engine Cooling Fan Clutch

Four Seasons 36710 Fan Clutch Overview

The Four Seasons 36710 engine cooling fan clutch is a standard-duty thermal replacement built for BMW applications that need controlled fan engagement and consistent cooling performance. It features an aluminum body, standard rotation, and a non-electronic design for straightforward OE-style service.

Compatible With BMW 320i, 325i, 325is, 325iX, 328i, 328Ci, 328is, 318i, 318is, 318ti, M3, Z3, 525i, 528e, 528i, 530i, 533i, 524td, 535i, 535is, 635CSi, 735i, M5, and M6 applications across the listed model years.

Key Features

• Four Seasons Fan Clutch, part number 36710
• Thermal, standard-duty design for engine-driven cooling fan control
• Aluminum construction with raw aluminum finish
• Standard rotation and hex mounting type
• 4-bolt fan mounting pattern with 4 mounting holes
• 5.43 in. clutch diameter and 4.88 in. fan bolt circle
• Non-electronic design for traditional mechanical cooling systems
• Meets or exceeds OEM requirements and is performance rated
• New replacement part for import cooling applications

Product Details

Four Seasons Fan Clutch 36710 is built for BMW cooling systems that rely on a thermal fan clutch to regulate airflow through the radiator. The standard rotation, standard-duty construction, and 1.37 in. distance from clutch to mounting flange support OE-style fitment on a wide range of BMW 3 Series, 5 Series, 6 Series, 7 Series, M models, and Z3 applications. This part cross-references Hayden 2591 and Gates 22309 for the same application.

As part of the Four Seasons Fan Clutch line, this unit is focused on direct-fit cooling service for import vehicles. The 36710 fan clutch is a practical choice for BMW 318i, 325i, 328i, M3, and Z3 owners replacing a worn thermal clutch that no longer engages the fan correctly.

What It Helps Address

• Engine overheating caused by a weak or slipping fan clutch
• Excessive fan noise from a clutch that stays engaged too long
• Reduced cooling airflow at idle or low vehicle speed
• Temperature swings from inconsistent thermal fan engagement
• Cooling system service needs on BMW import applications

Installation Notes and Tips

Verify the 4-bolt fan pattern, 1.25 in. mount diameter, 0.94 in. pilot diameter, and 0.57 in. pilot depth before installation. Mounting hardware is not included, so reuse or source the correct hardware separately if needed. Confirm standard rotation and thermal clutch style against the original unit on the vehicle before final assembly.

Quality Assurance

Four Seasons 36710 is a new, performance-rated fan clutch that meets or exceeds OEM requirements. It is built for standard-duty thermal cooling service in BMW applications and is intended to restore proper mechanical fan operation when the original clutch has worn out.