GMB 940-2040 Engine Cooling Fan Clutch

GMB 940-2040 Engine Cooling Fan Clutch

The GMB 940-2040 is a thermal engine cooling fan clutch built to meet or exceed OEM specifications for dependable cooling control. It is an OEM standard, new replacement part with an aluminum construction for applications that require a clockwise rotation fan clutch.

Key Features

• Thermal fan clutch for temperature-responsive fan engagement
• OEM standard item grade for direct replacement use
• Aluminum construction
• New part condition
• Built to meet or exceed OEM specifications

Detailed Description

This GMB engine cooling fan clutch is engineered for vehicles that use a thermal clutch to regulate fan speed based on operating temperature. The 940-2040 is a direct-fit cooling system replacement for select Isuzu Pickup, Amigo, Rodeo, Trooper, and Impulse applications with standard clockwise rotation. It is a practical choice when restoring proper airflow through the radiator and maintaining stable engine temperatures in everyday driving and demanding conditions.

This part cross-references Four Seasons 36986 for the same application.

Vehicle Fitment

• Fits 1986-1995 Isuzu Pickup, Clockwise (Std) Rotation; Thermal Fan Clutch; Standard Duty; w/ Front Mounted Fan
• Fits 1989-1994 Isuzu Amigo, Clockwise (Std) Rotation; Thermal Fan Clutch; Standard Duty
• Fits 1991-1993 Isuzu Rodeo, Clockwise (Std) Rotation; Thermal Fan Clutch; Standard Duty; w/ Front Mounted Fan
• Fits 1986-1991 Isuzu Trooper, Clockwise (Std) Rotation; Thermal Fan Clutch; Standard Duty
• Fits 1988-1989 Isuzu Impulse, Clockwise (Std) Rotation; Thermal Fan Clutch; Standard Duty

Common Replacement Reasons

• Engine fan stays engaged longer than normal
• Cooling fan engagement becomes inconsistent
• Engine temperature rises in traffic or at idle
• Noise from a worn fan clutch assembly
• Loss of cooling performance on Isuzu Pickup, Amigo, Rodeo, Trooper, or Impulse models

Installation Notes

Verify clockwise rotation, thermal clutch type, and standard-duty configuration before installation. Confirm front-mounted fan requirements where listed in the fitment notes, and compare the original part number and mounting dimensions to the removed unit before final assembly. For best results, inspect the fan blades, water pump, and surrounding cooling components during replacement.

Quality Assurance

GMB manufactures this fan clutch to meet or exceed OEM specifications, supporting consistent fit and function for the listed Isuzu applications. The 940-2040 is a new OEM-standard replacement part designed for cooling system service.