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Four Seasons 36747 Engine Cooling Fan Clutch
Reliable Engine Cooling for Chevrolet Corvette
The Four Seasons Fan Clutch 36747 is designed to provide dependable engine cooling for Chevrolet Corvette models. Constructed from durable aluminum, this heavy-duty fan clutch ensures efficient temperature regulation under demanding conditions.
- Heavy-duty aluminum construction for durability
- Non-electronic, standard rotation design
- Four bolt holes and mounting holes for secure flange installation
- Clutch maximum diameter of 7.2 inches with a 1.8-inch distance from clutch to mounting flange
- Compatible with Chevrolet Corvette vehicles
About the Four Seasons Fan Clutch Product Line
The Four Seasons Fan Clutch line focuses on heavy-duty engine cooling components engineered to meet or exceed OEM specifications. This product line emphasizes performance-rated fan clutches that maintain optimal engine temperatures, especially in demanding driving conditions. The 36747 model is part of this line, offering a flange mounting type and a robust C-type heavy-duty clutch design.
Product Details and Specifications
This engine cooling fan clutch features a raw aluminum color and is constructed entirely from aluminum for strength and heat resistance. It includes four bolt holes with 5/16-18 threaded holes, ensuring a secure fit. The clutch has a maximum diameter of 7.2 inches (182.9 mm) and an overall height of 3.52 inches (89.2 mm). The mounting diameter measures 2.56 inches (65 mm), with a pilot diameter of 0.75 inches (16 mm) and a pilot depth of 0.63 inches (16 mm). The fan bolt circle diameter is 3.25 inches (82.6 mm). This non-electronic clutch operates with standard rotation and is designed for heavy-duty use, making it suitable for Chevrolet Corvette engines requiring reliable cooling performance.
Common Applications and Problem Solving
- Prevents engine overheating during heavy load or high-temperature conditions
- Reduces fan noise by engaging only when necessary
- Improves fuel efficiency by minimizing unnecessary fan drag
- Replaces worn or failing fan clutches to restore proper cooling function
- Ensures consistent engine temperature for optimal performance
Installation Notes and Tips
Installation requires flange mounting with four bolts (not included). Ensure the mounting surface is clean and free of debris before installation. Verify bolt thread size of 5/16-18 for compatibility with existing hardware. Proper torque specifications should be followed to avoid damage. This fan clutch is designed for standard rotation; confirm rotation direction before installation. It is recommended to inspect the fan blades and surrounding components during installation for any signs of wear or damage.
Quality Assurance and Warranty
The Four Seasons Fan Clutch 36747 is a new, performance-rated part that meets or exceeds OEM standards for Chevrolet Corvette applications. Manufactured with precision aluminum materials, it is built to withstand heavy-duty use. While mounting hardware is not included, the product is backed by Four Seasons' quality assurance protocols to ensure reliable operation and durability.
| Brand | Four Seasons |
| Part Number | 36747 |
| 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 | 1.8 |
| 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 | 2.56 |
| Mount Dia. MM | 65 |
| Mounting Hardware? | Not Included |
| Mounting Hole Quantity | 4 |
| Mounting Type | Flange |
| New or Reman | New |
| Overall Dia. MM | 182.9 |
| Overall Height IN | 3.52 |
| Overall Height MM | 89.2 |
| Performance Rated? | Yes |
| Pilot Depth IN | 0.63 |
| Pilot Depth MM | 16 |
| Pilot Dia. IN | 0.75 |
| Rotation | STD |
| Style | Heavy Duty |
| Type | Thermal |
| Use Type | Heavy |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1980 | Chevrolet | Corvette | 5.7L | V8 | N/A | Standard Rotation; Heavy Duty Thermal Fan Clutch; w/ HD Fan Clutch; Fan Clutch |
| 1979 | Chevrolet | Corvette | N/A | Standard Rotation; Heavy Duty Thermal Fan Clutch; w/ HD Fan Clutch; Fan Clutch | ||
| 1978 | Chevrolet | Corvette | N/A | Standard Rotation; Heavy Duty Thermal Fan Clutch; w/ HD Fan Clutch; Fan Clutch | ||
| 1977 | Chevrolet | Corvette | N/A | Standard Rotation; Heavy Duty Thermal Fan Clutch; w/ HD Fan Clutch; Fan Clutch | ||
| 1976 | Chevrolet | Corvette | N/A | Standard Rotation; Heavy Duty Thermal Fan Clutch; w/ HD Fan Clutch; Fan Clutch | ||
| 1975 | Chevrolet | Corvette | N/A | Standard Rotation; Heavy Duty Thermal Fan Clutch; w/ HD Fan Clutch; Fan Clutch | ||
| 1974 | Chevrolet | Corvette | 5.7L | V8 | N/A | Standard Rotation; Heavy Duty Thermal Fan Clutch; w/ HD 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.