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Four Seasons 36780 Engine Cooling Fan Clutch
Overview of Four Seasons Fan Clutch 36780 for Chevrolet Corvette
The Four Seasons Fan Clutch 36780 is designed to provide reliable engine cooling performance for Chevrolet Corvette models. Constructed from durable aluminum, this engine cooling fan clutch ensures efficient operation and meets or exceeds OEM specifications for consistent fit and function.
- Material: Aluminum construction for durability
- Compatible with Chevrolet Corvette vehicles
- Non-electronic, standard rotation design
- Mounting type: Flange with 4 bolt holes (5/16-18 thread)
- Clutch maximum diameter: 7.2 inches
- Overall height: 3.19 inches (81 mm)
- Performance rated and new, not remanufactured
- Meets or exceeds OEM standards
Detailed Product Description
The Four Seasons Fan Clutch 36780 belongs to the Fan Clutch product line, which focuses on delivering reliable engine cooling components designed to maintain optimal engine temperature. This particular fan clutch features a flange mounting type with four bolt holes, each threaded 5/16-18, ensuring secure attachment to the engine assembly. The clutch has a maximum diameter of 7.2 inches and an overall height of 3.19 inches, with a mounting diameter of 2.59 inches (66 mm). It operates with a standard rotation and is a non-electronic clutch type, suitable for standard use in Chevrolet Corvette models.
Manufactured from raw aluminum, the fan clutch offers a balance of lightweight design and strength. The product is new and performance rated, providing dependable cooling fan engagement to help regulate engine temperature effectively. The clutch’s design includes a pilot depth of 0.63 inches and a pilot diameter of 0.75 inches, contributing to precise fitment and operation.
Common Applications and Problem Solving
- Replaces worn or failing fan clutches in Chevrolet Corvette engines
- Addresses overheating issues caused by improper fan engagement
- Eliminates excessive fan noise due to slipping or stuck clutches
- Improves engine cooling efficiency for better performance
- Restores proper fan operation after mechanical damage or wear
Installation Notes and Tips
Installation requires removal of the existing fan clutch and proper alignment of the flange mounting holes. Ensure the mounting surface is clean and free of debris before installation. Use the correct 5/16-18 bolts (not included) to secure the clutch firmly. Verify the clutch rotation direction matches the engine’s standard rotation. It is recommended to inspect the fan blades and surrounding components during installation to ensure overall system integrity.
Quality Assurance and Warranty
The Four Seasons Fan Clutch 36780 is a new, performance-rated part that meets or exceeds OEM specifications for Chevrolet Corvette vehicles. Manufactured with quality aluminum materials and precision engineering, this fan clutch is designed for durability and reliable operation. While specific warranty details are not provided, Four Seasons products typically adhere to industry standards for quality and reliability.
| Brand | Four Seasons |
| Part Number | 36780 |
| Position | Fan Clutch |
| Bolt Hole Quantity | 4 |
| Bolt Thread | 5/16-18 Hole |
| Clutch Maximum Diameter | 7.2 |
| Clutch Type | B - Non-Thermal & Std Thermal |
| Color | Raw Aluminum in Color |
| Description | Fan Clutches |
| Dia. IN | 7.2 |
| Distance From Clutch To Mounting Flange | 1.62 |
| Distance From Clutch To Mounting Flange | 1.63 |
| 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 | 2.59 |
| Mount Dia. MM | 66 |
| Mounting Hardware? | Not Included |
| Mounting Hole Quantity | 4 |
| Mounting Type | Flange |
| New or Reman | New |
| Overall Dia. MM | 182.9 |
| Overall Height IN | 3.19 |
| Overall Height MM | 81 |
| Performance Rated? | Yes |
| Pilot Depth IN | 0.63 |
| Pilot Depth MM | 16 |
| Pilot Dia. IN | 0.75 |
| Rotation | STD |
| Style | Standard Duty |
| Type | Thermal |
| Use Type | Standard |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1974 | Chevrolet | Corvette | 7.4L | V8 | N/A | Standard duty thermal fan clutch without AC, standard rotation.; Fan Clutch |
| 1973 | Chevrolet | Corvette | 7.4L | V8 | N/A | Standard duty thermal fan clutch without AC, standard rotation.; Fan Clutch |
| 1972 | Chevrolet | Corvette | 7.4L | V8 | N/A | Standard duty thermal fan clutch without AC, standard rotation.; Fan Clutch |
| 1971 | Chevrolet | Corvette | 5.7L | V8 | N/A | Standard rotation thermal engine cooling fan clutch compatible.; Fan Clutch |
| 1971 | Chevrolet | Corvette | 7.4L | V8 | N/A | Standard duty thermal fan clutch without AC, standard rotation.; Fan Clutch |
| 1970 | Chevrolet | Corvette | 5.7L | V8 | N/A | Standard rotation thermal engine cooling fan clutch compatible.; Fan Clutch |
| 1970 | Chevrolet | Corvette | 7.4L | V8 | N/A | Standard duty thermal fan clutch without AC, standard rotation.; Fan Clutch |
| 1969 | Chevrolet | Corvette | 5.7L | V8 | N/A | Standard rotation thermal engine cooling fan clutch compatible.; 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.