HomeBelts and Cooling > Cooling Fan, Clutch and MotorFour Seasons 36781 Engine Cooling Fan Clutch
Part #: 36781

Four Seasons 36781 Engine Cooling Fan Clutch

Fan Clutch
⚙️ 28 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Fan Clutch
🚗Fitment: Jeep and Dodge, Liberty, Nitro, Grand Cherokee, Durango, Ram 1500, Ram 2500, Ram 3500, and Ramcharger
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Reliable Engine Cooling Fan Clutch for Dodge and Jeep Vehicles

The Four Seasons Fan Clutch 36781 is designed to provide dependable engine cooling performance for heavy-duty applications. Engineered with durable aluminum construction, this fan clutch is compatible with select Dodge and Jeep models, ensuring optimal fit and function.

  • Constructed from raw aluminum for strength and heat resistance
  • Heavy-duty C-type clutch designed for demanding engine cooling needs
  • Four bolt holes and mounting holes for secure installation
  • Non-electronic design for straightforward operation and maintenance
  • Compatible with Dodge Ram 1500, 2500, 3500, Ramcharger, and Jeep Durango, Grand Cherokee, Liberty, Nitro

Four Seasons Fan Clutch Product Line Overview

The Four Seasons Fan Clutch line focuses on delivering reliable engine cooling components tailored for heavy-duty use. This product line emphasizes durability and performance, meeting or exceeding OEM specifications. The 36781 model exemplifies these qualities with its robust aluminum construction and precise fitment for various Dodge and Jeep vehicles.

Detailed Product Description and Specifications

The Four Seasons Fan Clutch 36781 features a 7.2-inch maximum diameter and a 1.25-inch distance from clutch to mounting flange, designed to fit specific engine cooling systems. It includes four 5/16-18 threaded bolt holes arranged on an 82.6 mm (3.25 inch) fan bolt circle, with a hex mounting type for secure attachment. The clutch operates with a reverse rotation and is rated for heavy-duty use, making it suitable for demanding engine environments. The overall height is 2.95 inches (75 mm), and the mounting diameter measures 1.44 inches (36 mm). This new, non-electronic fan clutch does not include mounting hardware, so ensure proper bolts are available during installation.

Common Applications and Problem Solving

  • Replaces worn or failing fan clutches in Dodge Ram 1500, 2500, 3500 trucks
  • Restores proper engine cooling in Jeep Grand Cherokee and Durango models
  • Addresses overheating issues caused by slipping or stuck fan clutches
  • Improves engine temperature regulation under heavy load conditions
  • Eliminates excessive fan noise from malfunctioning clutches

Installation Notes and Tips

Installation requires removal of the existing fan clutch and proper alignment of the four mounting bolts. Use the correct 5/16-18 bolts (not included) and ensure the hex mounting type is compatible with your vehicle’s fan assembly. Verify the clutch rotation direction matches your engine’s requirements (reverse rotation). It is recommended to inspect the fan blades and surrounding components during installation to ensure optimal cooling system performance.

Quality Assurance and Warranty Information

The Four Seasons Fan Clutch 36781 meets or exceeds OEM standards for durability and performance. This new fan clutch is performance rated and constructed from high-quality aluminum to withstand heavy-duty use. While specific warranty details are not provided here, Four Seasons products typically come with manufacturer-backed warranties to ensure customer confidence and product reliability.

BrandFour Seasons
Part Number36781
PositionFan Clutch
Bolt Hole Quantity4
Bolt Thread5/16-18 Hole
Clutch Maximum Diameter7.2
Clutch TypeC - Heavy Duty
ColorRaw Aluminum in Color
DescriptionFan Clutches
Dia. IN7.2
Distance From Clutch To Mounting Flange1.25
Electronic Clutch?Non Electronic
Fan Bolt Circle IN3.25
Fan Bolt Circle MM82.6
MaterialAluminum
Meets / Exceeds OEM?Yes
Mount Dia. IN1.44
Mount Dia. MM36
Mounting Hardware?Not Included
Mounting Hole Quantity4
Mounting TypeHEX
New or RemanNew
Overall Dia. MM182.9
Overall Height IN2.95
Overall Height MM75
Performance Rated?Yes
Pilot Depth IN0.7
Pilot Depth MM17.8
Pilot Dia. IN1.18
Pilot Dia. MM30
RotationREV
StyleHeavy Duty
TypeThermal
Use TypeHeavy

This part fits 28 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2008JeepLibertyN/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2007DodgeNitro3.7LV6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2007JeepLibertyN/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2006JeepLiberty3.7LV6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2005JeepLiberty3.7LV6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Towing Package; Fan Clutch
2004JeepGrand Cherokee4.0LL6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2004JeepLiberty3.7LV6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Tow Package; Fan Clutch
2003DodgeDurango5.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ 3.92 Rear Axle Ratio; Fan Clutch
2003JeepGrand Cherokee4.0LL6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2003JeepLiberty3.7LV6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2002DodgeDurango5.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2002DodgeRam 1500Automatic5.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2002DodgeRam 1500Manual5.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2002DodgeRam 25005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2002DodgeRam 35005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2002JeepGrand Cherokee4.0LL6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2002JeepLiberty3.7LV6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2001DodgeRam 15005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2001DodgeRam 25005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2001DodgeRam 35005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2001DodgeRamcharger5.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch
2001JeepGrand Cherokee4.0LL6N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
2000DodgeRam 15005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch
2000DodgeRam 25005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch
2000DodgeRam 35005.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch
2000DodgeRamcharger5.9LV8N/AReverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch
2000JeepGrand CherokeeN/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch
1999JeepGrand CherokeeN/AReverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

111367811401511540074191445531918963521512322151271357273629113253678147652520278585202786052028306520283075207943852079438AB520794435207971852079718AC52079718AD5511681355116813AA55116882AA68064766AA9202340922736A71357CWK922736FFC5736TGC374KG2736

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.