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HAYDEN 2744  
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HAYDEN 2744 Specifications
Bolt Quantity4
Bolt ThreadM10 x 1.5 Hole
Clutch Maximum Diameter (IN)7.2
Clutch TypeC - Heavy Duty
ColorRaw Aluminum in Color
DescriptionFan Clutches
Distance From Clutch To Mounting Flange (IN)1.75
Drawing TypeC
Duty RatingHeavy
Electronic Clutch?Non Electronic
Fan Bolt Circle (IN)3.25
Fan Mount Dia. (IN)2.52
Fan Mount Dia. (MM)63.9
Meets / Exceeds OEM?Yes
Mount Dia. (IN)1.44 (36mm) HEX
Mount Dia. (MM)36 HEX
Mounting Hardware?Not Included
Mounting Hole Quantity4
Mounting TypeHex
New or RemanNew
O.E. Replacement?Yes
Overall Dia. (MM)182.9
Overall Height (IN)3.47
Overall Height (MM)88.1
Performance Rated?Yes
Pilot Depth (IN)0.7
Pilot Dia. (IN)M30x1.500
StyleHeavy Duty
Thermal; Heavy 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 Heavy Duty Thermal Fan Clutch
  • Turns the fan 70-90% of the shaft speed when engaged for increased cooling
  • Turns the fan 25-35% of the shaft speed when disengaged
  • Used with deeper pitch fans (2-1/2" of pitch)
  • Land and groove design with up to 27 square inch of working surface
  • Identified by finned aluminum faceplate and thermal spring on the front
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.

Alternate/OEM Part Number(s): 15022299, 15166906, 15911779, 15977341, 15999126, 19150977, 22135975, 22136731, 22149858, 22149894, 22150373, 22150377, 88986801

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