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Four Seasons 36781 Engine Cooling Fan Clutch
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.
| Brand | Four Seasons |
| Part Number | 36781 |
| Position | Fan Clutch |
| Bolt Hole Quantity | 4 |
| Bolt Thread | 5/16-18 Hole |
| Clutch Maximum Diameter | 7.2 |
| Clutch Type | C - Heavy Duty |
| Color | Raw Aluminum in Color |
| Description | Fan Clutches |
| Dia. IN | 7.2 |
| Distance From Clutch To Mounting Flange | 1.25 |
| Electronic Clutch? | Non Electronic |
| Fan Bolt Circle IN | 3.25 |
| Fan Bolt Circle MM | 82.6 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mount Dia. IN | 1.44 |
| Mount Dia. MM | 36 |
| Mounting Hardware? | Not Included |
| Mounting Hole Quantity | 4 |
| Mounting Type | HEX |
| New or Reman | New |
| Overall Dia. MM | 182.9 |
| Overall Height IN | 2.95 |
| Overall Height MM | 75 |
| Performance Rated? | Yes |
| Pilot Depth IN | 0.7 |
| Pilot Depth MM | 17.8 |
| Pilot Dia. IN | 1.18 |
| Pilot Dia. MM | 30 |
| Rotation | REV |
| Style | Heavy Duty |
| Type | Thermal |
| Use Type | Heavy |
This part fits 28 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2008 | Jeep | Liberty | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |||
| 2007 | Dodge | Nitro | 3.7L | V6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2007 | Jeep | Liberty | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |||
| 2006 | Jeep | Liberty | 3.7L | V6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2005 | Jeep | Liberty | 3.7L | V6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Towing Package; Fan Clutch | |
| 2004 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2004 | Jeep | Liberty | 3.7L | V6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Tow Package; Fan Clutch | |
| 2003 | Dodge | Durango | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ 3.92 Rear Axle Ratio; Fan Clutch | |
| 2003 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2003 | Jeep | Liberty | 3.7L | V6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2002 | Dodge | Durango | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2002 | Dodge | Ram 1500 | Automatic | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch |
| 2002 | Dodge | Ram 1500 | Manual | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch |
| 2002 | Dodge | Ram 2500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch | |
| 2002 | Dodge | Ram 3500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch | |
| 2002 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2002 | Jeep | Liberty | 3.7L | V6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2001 | Dodge | Ram 1500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch | |
| 2001 | Dodge | Ram 2500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch | |
| 2001 | Dodge | Ram 3500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch | |
| 2001 | Dodge | Ramcharger | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/ Max Cooling; Fan Clutch | |
| 2001 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |
| 2000 | Dodge | Ram 1500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch | |
| 2000 | Dodge | Ram 2500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch | |
| 2000 | Dodge | Ram 3500 | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch | |
| 2000 | Dodge | Ramcharger | 5.9L | V8 | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; From 5/1/00; w/ Max Cooling; Fan Clutch | |
| 2000 | Jeep | Grand Cherokee | N/A | Reverse Rotation; Heavy Duty Thermal Fan Clutch; Fan Clutch | |||
| 1999 | Jeep | Grand Cherokee | N/A | Reverse 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.