Four Seasons 36930 Engine Cooling Fan Clutch

Four Seasons 36930 Fan Clutch Overview

The Four Seasons 36930 engine cooling fan clutch is a standard-duty thermal replacement built for reverse-rotation applications. It is a new, non-electronic aluminum unit that meets or exceeds OEM requirements and is engineered for direct fitment on select Lexus LS400 models.

For Lexus LS400 cooling system service, this Four Seasons fan clutch helps restore proper fan engagement control and consistent airflow through the radiator. The Four Seasons Fan Clutch line focuses on OE-style replacement coverage for thermal fan clutch applications, including import vehicles that use a flange-mounted design.

Key Features

• Part number 36930 from Four Seasons Fan Clutch
• Thermal, non-electronic fan clutch design
• Standard-duty construction for everyday cooling system service
• Aluminum housing with raw aluminum finish
• Reverse rotation (REV) application
• Flange mounting style with 4 bolt holes and 4 mounting holes
• Fan bolt circle: 5.35 in. / 135.9 mm
• Mount diameter: 3.7 in. / 94 mm
• Meets or exceeds OEM specifications
• Performance rated and new, not remanufactured

Detailed Description

Four Seasons 36930 is a thermal engine cooling fan clutch designed for import applications that require reverse rotation and a standard-duty fan clutch profile. The aluminum construction, 6.65 in. maximum diameter, and flange mount layout support a precise replacement for vehicles that use the A - 5" & 6" import clutch style. This unit is built for direct service use on Lexus LS400 models across the listed years, including 1990-1996 Lexus LS400, 1997-1999 Lexus LS400 without the trailer tow package, and 2000 Lexus LS400 without the towing package.

This part cross-references Hayden 2656 and Gates 22178 for the same application. If you are replacing a worn Lexus LS400 fan clutch, part number 36930 provides an OE-style thermal solution for restoring proper fan drive response and cooling performance.

Common Problems This Part Can Address

• Excessive fan freewheeling or weak fan engagement
• Cooling fan noise caused by a worn clutch
• Reduced airflow at idle or low vehicle speed
• Overheating concerns tied to fan clutch wear
• Inconsistent thermal fan operation on reverse-rotation systems

Installation Notes and Tips

Verify reverse-rotation fan clutch requirements, flange mounting dimensions, and bolt pattern before installation. Confirm the vehicle is a Lexus LS400 with the correct towing-package configuration, since the listed fitment excludes towing package applications for certain years. Inspect the fan blades, water pump area, and surrounding cooling components during replacement, and transfer only the components required for the specific vehicle setup.

Quality Assurance

Four Seasons lists this fan clutch as new, performance rated, and meeting or exceeding OEM specifications. The part is built as a standard-duty thermal replacement for direct service on the specified Lexus LS400 applications.

• Fits 1990-1996 Lexus LS400, N/A
• Fits 1997-1999 Lexus LS400, N/A
• Fits 2000 Lexus LS400, N/A