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HAYDEN 2797  
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HAYDEN 2797 Specifications
Bolt Quantity4
Bolt Thread5/16-18 Hole
Clutch Maximum Diameter (IN)6.45
Clutch TypeD - Severe Duty & Truck Fan Drive
ColorRaw Aluminum in Color
DescriptionFan Clutches
Drawing TypeD
Duty RatingSevere
Electronic Clutch?Non Electronic
Fan Bolt Circle (IN)3.25
Fan Mount Dia. (IN)2.62
Fan Mount Dia. (MM)66.6
Fan Mount Height (MM)41.3
Meets / Exceeds OEM?Yes
Mount Dia. (IN)2.58
Mount Dia. (MM)66
Mounting Hardware?Not Included
Mounting Hole Quantity4
Mounting TypeFlange
New or RemanNew
O.E. Replacement?Yes
Overall Dia. (MM)163.8
Overall Height (IN)3.66
Overall Height (MM)92.9
Performance Rated?Yes
Pilot Depth (IN)0.63
Pilot Depth (MM)16
Pilot Dia. (IN)0.63
StyleSevere Duty
Thermal; Severe Duty

Hayden makes four different types of thermal fan clutches; Standard, Heavy Duty, Severe Duty and Truck Fan Drives. Each type is engineered to simulate the performance, fit and appearance of the original equipment clutch that it replaces. All fan clutches are for specific applications and should only be applied for which they are cataloged. Use of the wrong fan clutch may result in poor cooling, excess noise, reduced mileage, or fan clutch failure.

Features & Benefits of Severe Duty Thermal Fan Clutch
  • Turns the fan 80-90% of the shaft speed when engaged
  • Turns the fan 20-30% of the shaft speed when disengaged
  • Used with deeper pitch fans. (2-1/2" of pitch)
  • Land and groove design with up to 72 Sq. In. of working area
  • Larger working surface provides cooler running and longer life expectancy
  • Thicker body and deep finned faceplate dissipate more heat
  • Can be used in place of many heavy-duty clutches
Additional Resources

Fan Clutch Operation & Troubleshooting Guide
Standard Duty vs Heavy Duty vs Severe Duty
Installation Instructions

Attention California Customers - Warning: This product contains a chemical known to the State of California to cause cancer.

OEM / Interchange Numbers: 10014251, 10197605, 12529772, 12529774, 14006728, 14006729, 14006730, 14007832, 14007833, 14010296, 14015569, 14020668, 15625457, 15625458, 15629472, 15629473, 15629474, 15643265, 15665117, 15963247, 19149243, 21136853, 22073423, 22073427, 22091721, 22091722, 22136844, 22136853, 22149527, 53009020, 561826, 88961767

Warranty Information:
12 Months / 12,000 Miles
Warranty Details