Hayden 2591 Engine Cooling Fan Clutch

Hayden 2591 Fan Clutch for BMW Cooling Systems

Hayden 2591 is a standard-duty thermal engine cooling fan clutch built for BMW applications that use a 5-inch or 6-inch import-style fan clutch. It features an aluminum body, standard rotation, and a non-electronic thermal design for direct replacement service on select BMW 3 Series, 5 Series, 6 Series, and Z3 models.

Key Features

• Thermal, non-electronic fan clutch for engine cooling control
• Standard-duty design with standard rotation
• Aluminum construction with raw aluminum finish
• 4-bolt fan mounting pattern with 4 mounting holes
• 5.43 in. clutch diameter and 2.02 in. overall height
• Meets or exceeds OEM requirements
• Performance rated for replacement cooling service

Product Details

This Hayden Fan Clutch line is built for dependable cooling fan engagement in import applications where thermal response matters. Part number 2591 uses a hex mounting type, M6 x 1.0 hole thread, a 4.88 in. fan bolt circle, and a 1.25 in. mount diameter. The clutch type is listed as A - 5" & 6" Import, making it a fitment-focused replacement for BMW cooling fan systems that require standard rotation and a thermal clutch layout. This part cross-references Four Seasons 36710 and Gates 22309 for the same application.

Vehicle Fitment

• Fits 1997-2002 BMW Z3, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 2000 BMW 328Ci, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1996-2000 BMW 328i, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1991-1999 BMW 318i, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1984-1985 BMW 318i, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1991-1999 BMW 318is, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1995-1999 BMW 318ti, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1996-1999 BMW 328is, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1995-1999 BMW M3, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1996-1998 BMW Z3, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1987-1995 BMW 325i, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1987-1995 BMW 325is, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1988-1991 BMW 325iX, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1988-1991 BMW M3, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1989-1990 BMW 525i, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1985-1989 BMW 635CSi, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1982-1988 BMW 528e, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1985-1988 BMW 535i, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1988 BMW 535is, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1988 BMW M5, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1987-1988 BMW M6, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1984-1987 BMW 325e, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1986-1987 BMW 325es, N/A; Standard Rotation; Standard Duty Thermal Fan Clutch; 4 Fan Mount Holes; Fan Clutch
• Fits 1985-1987 BMW 735i, N/A; Standard Duty Thermal Fan Clutch; Fan Clutch
• Fits 1985-1986 BMW 524td, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1983-1984 BMW 533i, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1977-1983 BMW 320i, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1979-1981 BMW 528i, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch
• Fits 1975-1978 BMW 530i, N/A; Thermal engine cooling fan clutch with standard duty and rotation.; Fan Clutch

Common Cooling Issues It Can Address

• Engine overheating caused by a fan clutch that no longer engages correctly
• Excessive fan noise from a worn thermal clutch
• Reduced airflow through the radiator at idle or low road speed
• Cooling performance loss on BMW models with standard-rotation mechanical fans
• Replacement needs after clutch wear, leakage, or inconsistent fan engagement

Installation Notes and Tips

Confirm the existing clutch uses a 4-bolt fan mounting pattern, standard rotation, and the same 5.43 in. clutch diameter before installation. Verify the fan bolt circle, pilot dimensions, and mounting depth against the original unit on the vehicle. Mounting hardware is not included, so reuse or source the correct hardware separately as needed. For BMW 318i, 325i, 528e, 535i, and Z3 applications, match the original thermal clutch style and fan configuration before final assembly.

Quality Assurance

Hayden lists this fan clutch as new, performance rated, and meeting or exceeding OEM requirements. The aluminum construction and thermal standard-duty design support direct replacement use in select BMW cooling systems, including 3 Series, 5 Series, 6 Series, M3, M5, M6, and Z3 applications.