Hayden Automotive 2991 Reverse Rotation Severe Duty Thermal Fan Clutch

The Hayden Automotive 2991 is a reverse rotation severe duty thermal fan clutch engineered for demanding cooling applications. This precision-machined fan clutch is designed specifically for reverse rotation engines and delivers OE-quality performance, fit, and appearance with out-of-the-box installation.

Key Features:

• Severe duty thermal fan clutch with reverse (counter-clockwise) rotation design
• Precision-machined aluminum construction with raw aluminum finish
• 6.45-inch maximum clutch diameter for increased cooling capacity
• Finned aluminum faceplate dissipates heat efficiently for extended service life
• Operates at 80-90% shaft speed when engaged for maximum cooling performance
• Operates at 20-30% shaft speed when disengaged to reduce noise and improve fuel economy
• Larger working surface area provides cooler operation and longer life expectancy
• Four M8 x 1.25 mounting holes for secure installation
• Compatible with deeper pitch cooling fans
• Meets or exceeds OEM specifications

Backed by Hayden's 45+ years of automotive cooling expertise, the 2991 severe duty fan clutch is ideal for vehicles operating in hot climates or under heavy-load conditions. The thermal spring assembly automatically engages and disengages the clutch based on engine temperature, ensuring optimal cooling efficiency while minimizing parasitic drag on the engine. Fan blades sold separately.