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Four Seasons 36778 Engine Cooling Fan Clutch
| Brand | Four Seasons 36778 |
|---|---|
| Bolt Hole Quantity | 4 |
| Bolt Thread | M6 x 1.0 Hole |
| Clutch Maximum Diameter | 6.65 |
| Clutch Type | A - 5" & 6" Import |
| Color | Raw Aluminum in Color |
| Description | Fan Clutches |
| Dia. IN | 6.65 |
| Distance From Clutch To Mounting Flange | 2.19 |
| Electronic Clutch? | Non Electronic |
| Fan Bolt Circle IN | 6.03 |
| Fan Bolt Circle MM | 153.2 |
| 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 | 168.9 |
| Overall Height IN | 2.77 |
| Overall Height MM | 70.2 |
| 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 | Standard Duty |
| Type | Thermal |
| Use Type | Standard |
| Product line | Fan Clutch |
| Fits | Mazda and Ford · 15 vehicles |
Thermal clutch. Responds to temperature changes for consistent cooling control.
Standard duty. Built for everyday cooling system service.
Aluminum construction. Lightweight material with a raw aluminum finish.
Cross-references Four Seasons 36778, Gates 22135 and Global Parts Distributors LLC 2911343 for the same application. See all 29.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Four Seasons 36778 Fan Clutch Overview
Four Seasons 36778 is a standard-duty thermal engine cooling fan clutch built for reverse-rotation applications. It is a new, non-electronic aluminum unit that meets or exceeds OEM requirements for select Ford Ranger, Ford F-100 Ranger, and Mazda B2300 fitments.
Use this Four Seasons fan clutch when you need consistent fan engagement for reverse-rotation cooling systems on import and domestic light trucks. The 36778 part number is a direct-fit style replacement for the listed applications and is also referenced by several common aftermarket interchange numbers.
Key Features
- Thermal, standard-duty fan clutch for engine cooling control
- Reverse rotation design for the listed applications
- Aluminum construction with raw aluminum finish
- Non-electronic clutch design
- Hex mounting type with 4-bolt, 4-hole pattern
- Meets or exceeds OEM specifications
- Performance rated for replacement use
- Four Seasons 36778 fan clutch for Ford Ranger and Mazda B2300 applications
Product Details
The Four Seasons Fan Clutch line is built for dependable cooling-system service, and part number 36778 follows that approach with a thermal operating design and standard-duty construction. It uses a 6.65-inch maximum clutch diameter, 2.77-inch overall height, 1.44-inch mount diameter, and a 1.18-inch pilot diameter for the specified fitments. The reverse-rotation configuration and M6 x 1.0 hole thread pattern make it a focused replacement for compatible Ford Ranger and Mazda B2300 cooling assemblies. This part cross-references Hayden 2681 and Gates 22135 for the same application.
Vehicle Fitment
- Fits 2001-2010 Mazda B2300, N/A β Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch
- Fits 2001-2004 Ford Ranger, N/A β Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch
- Fits 2001 Ford F-100 Ranger, N/A β Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch
Common Cooling Issues This Part Addresses
- Engine fan not engaging at the correct temperature
- Cooling fan freewheeling or slipping under load
- Excessive engine temperature during idle or low-speed driving
- Noisy or worn fan clutch operation
- Reduced airflow through the radiator and condenser
Installation Notes and Tips
Verify reverse-rotation fan clutch orientation before installation, and confirm the mounting flange, pilot diameter, and bolt pattern match the original unit. Mounting hardware is not included, so reuse or source the correct hardware as needed. Inspect the fan blades, water pump area, and surrounding cooling components during replacement to help ensure proper system operation.
Quality Assurance
Four Seasons 36778 is a new replacement fan clutch that meets or exceeds OEM specifications and is performance rated for the listed applications. It is built as a standard-duty thermal unit for Ford Ranger and Mazda B2300 cooling-system service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2009 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2008 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2007 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2006 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2005 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2004 | Ford | Ranger | 2.3L | L4 | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2004 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2003 | Ford | Ranger | 2.3L | L4 | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2003 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2002 | Ford | Ranger | 2.3L | L4 | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2002 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2001 | Ford | F-100 Ranger | 2.3L | L4 | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2001 | Ford | Ranger | 2.3L | L4 | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
| 2001 | Mazda | B2300 | — | — | N/A | Reverse Rotation Standard Duty Thermal Fan Clutch; Fan Clutch |
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