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Hayden 2991 Engine Cooling Fan Clutch
| Brand | Hayden 2991 |
|---|---|
| Bolt Hole Quantity | 4 |
| Bolt Thread | M8 x 1.25 Hole |
| Clutch Maximum Diameter | 6.45 |
| Clutch Type | D - Severe Duty & Truck Fan Drive |
| Color | Raw Aluminum in Color |
| Description | Fan Clutches |
| Dia. IN | 6.45 |
| Distance From Clutch To Mounting Flange | 1.09 |
| Distance From Clutch To Mounting Flange | 1.1 |
| 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 | 163.8 |
| Overall Height IN | 3.13 |
| Overall Height MM | 79.5 |
| Performance Rated? | Yes |
| Pilot Depth IN | 0.56 |
| Pilot Depth MM | 14.3 |
| Pilot Dia. IN | 1.18 |
| Pilot Dia. MM | 30 |
| Rotation | REV |
| Style | Severe Duty |
| Type | Thermal |
| Use Type | Severe |
| Product line | Fan Clutch |
| Fits | Land Rover · 14 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable cooling performance.
Severe-duty thermal design. Built for demanding fan drive applications with non-electronic operation.
Aluminum construction. Lightweight raw aluminum housing resists heat and wear.
Cross-references Anchor 2991, Dorman - HELP 46054 and Gates 22170 for the same application. See all 15.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Hayden 2991 Severe Duty Fan Clutch
Hayden 2991 is a thermal engine cooling fan clutch built for severe-duty service and reverse rotation applications. It is a non-electronic, aluminum fan clutch with a 6.45-inch maximum diameter and a 3.25-inch fan bolt circle, made for Land Rover Discovery and Range Rover cooling system service.
Key Features
- Severe duty thermal fan clutch for truck and SUV cooling systems
- Reverse rotation design for the listed Land Rover applications
- Aluminum construction with raw aluminum finish
- Non-electronic clutch design
- 4-bolt mounting pattern with M8 x 1.25 hole thread
- Meets or exceeds OEM requirements
- Performance rated for demanding cooling loads
- Hayden Fan Clutch line part number 2991
Product Details
The Hayden Fan Clutch line focuses on thermal fan drive components for vehicles that rely on mechanical fan control rather than electronic operation. Part number 2991 is a severe duty, truck-style fan drive with reverse rotation, aluminum housing, and a hex mounting type. It measures 6.45 inches in clutch diameter, 3.13 inches in overall height, and uses a 1.44-inch mount diameter with a 1.18-inch pilot diameter. This part cross-references Dorman - HELP 46054 for the same application.
Compatible With 1999-2004 Land Rover Discovery, N/A and 1996-2002 Land Rover Range Rover, N/A. It also fits 1995 Land Rover Range Rover, N/A. Use Hayden 2991 when replacing a reverse rotation severe duty thermal engine cooling fan clutch on these Land Rover cooling systems.
Common Cooling System Issues
- Weak fan engagement at operating temperature
- Reduced airflow through the radiator and condenser
- Cooling fan noise caused by a worn clutch
- Overheating under load, towing, or slow-speed driving
- Loss of mechanical fan drive performance in severe-duty use
Installation Notes
Verify reverse rotation, bolt pattern, pilot dimensions, and fan bolt circle before installation. Mounting hardware is not included. Confirm clearance to the radiator shroud and check that the fan assembly matches the listed Land Rover Discovery and Range Rover applications before service. Hayden 2991 is a direct-fit style replacement for the specified thermal fan clutch applications.
Quality Assurance
Hayden lists this fan clutch as new, performance rated, and meeting or exceeding OEM requirements. The severe duty design is intended for demanding cooling system service in Land Rover Discovery and Range Rover applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Land Rover | Discovery | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 2003 | Land Rover | Discovery | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 2002 | Land Rover | Discovery | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 2002 | Land Rover | Range Rover | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 2001 | Land Rover | Discovery | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 2001 | Land Rover | Range Rover | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 2000 | Land Rover | Discovery | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 2000 | Land Rover | Range Rover | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 1999 | Land Rover | Discovery | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 1999 | Land Rover | Range Rover | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 1998 | Land Rover | Range Rover | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 1997 | Land Rover | Range Rover | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 1996 | Land Rover | Range Rover | — | — | N/A | Reverse Rotation; Severe Duty Thermal Fan Clutch; w/o Fan Blades; Fan Clutch |
| 1995 | Land Rover | Range Rover | 4.0L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
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