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Hayden 2850 Engine Cooling Fan Clutch
Overview of Hayden Fan Clutch 2850
The Hayden Fan Clutch 2850 is engineered for severe duty applications, designed to maintain optimal engine temperature in heavy-duty Chevrolet and GMC trucks and vans. Constructed from durable aluminum, this non-electronic engine cooling fan clutch ensures reliable performance under demanding conditions.
- Material: Aluminum for durability and heat resistance
- Severe duty use type, suitable for heavy truck applications
- Non-electronic clutch type for straightforward operation
- 4 bolt holes and mounting holes with M8 x 1.25 thread
- Maximum clutch diameter of 7.4 inches (188 mm)
- Hex mounting type with 1.32 inch distance from clutch to mounting flange
- Compatible with multiple Chevrolet and GMC models
- New, performance-rated part meeting or exceeding OEM standards
Detailed Product Description
The Hayden Fan Clutch 2850 belongs to the Fan Clutch product line, which focuses on providing reliable engine cooling solutions for severe duty and truck fan drive applications. This clutch is specifically designed to regulate the fan speed based on engine temperature, improving fuel efficiency and reducing engine wear. Its aluminum construction offers a balance of strength and heat dissipation, while the 4-bolt hex mounting ensures secure installation. The clutch’s 7.4-inch diameter and 3.83-inch overall height make it compatible with a range of heavy-duty Chevrolet and GMC vehicles, including Express 2500, Express 3500, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models.
Compatible Vehicles and Applications
This engine cooling fan clutch is compatible with the following Chevrolet and GMC models:
- Chevrolet Express 2500 and 3500
- Chevrolet P30 and P3500
- Chevrolet Sierra 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD
- Chevrolet Silverado 2500 HD, 2500 HD Classic, 3500, 3500 Classic, and 3500 HD
- GMC Savana 2500 and 3500
Common Issues Addressed by Hayden Fan Clutch 2850
- Overheating due to fan clutch failure or slipping
- Excessive engine noise from worn or stuck fan clutch
- Reduced fuel efficiency caused by fan running continuously
- Engine overheating during heavy load or severe duty operation
- Inconsistent fan engagement affecting engine temperature regulation
Installation Notes and Tips
Installation of the Hayden Fan Clutch 2850 requires removal of the existing fan clutch and proper alignment of the 4 mounting bolts with M8 x 1.25 threads. Ensure the mounting flange and clutch surfaces are clean before installation. This clutch uses a hex mounting type and does not include mounting hardware, so appropriate bolts must be sourced separately. Verify the clutch rotation direction (reverse) matches the vehicle’s fan rotation. Proper torque specifications should be followed to avoid damage or loosening during operation.
Quality Assurance and Warranty
The Hayden Fan Clutch 2850 is a new, performance-rated part that meets or exceeds OEM specifications for severe duty and truck fan drive applications. Manufactured with high-quality aluminum and designed for durability, this clutch supports reliable engine cooling in demanding environments. Warranty details should be confirmed with the original equipment manufacturer or distributor, as they may vary.
| Brand | Hayden |
| Part Number | 2850 |
| Position | Fan Clutch |
| Bolt Hole Quantity | 4 |
| Bolt Thread | M8 x 1.25 Hole |
| Clutch Maximum Diameter | 7.4 |
| Clutch Type | D - Severe Duty & Truck Fan Drive |
| Color | Raw Aluminum in Color |
| Description | Fan Clutches |
| Dia. IN | 7.4 |
| Distance From Clutch To Mounting Flange | 1.32 |
| Electronic Clutch? | Non Electronic |
| Fan Bolt Circle IN | 3.81 |
| Fan Bolt Circle MM | 96.8 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mount Dia. IN | 1.86 |
| Mount Dia. MM | 47 |
| Mounting Hardware? | Not Included |
| Mounting Hole Quantity | 4 |
| Mounting Type | HEX |
| New or Reman | New |
| Overall Dia. MM | 188 |
| Overall Height IN | 3.83 |
| Overall Height MM | 97.2 |
| Performance Rated? | Yes |
| Pilot Depth IN | 0.77 |
| Pilot Depth MM | 19.3 |
| Pilot Dia. IN | 1.42 |
| Pilot Dia. MM | 36 |
| Rotation | REV |
| Style | Severe Duty |
| Type | Thermal |
| Use Type | Severe |
This part fits 42 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2010 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2010 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2010 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2009 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2009 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2009 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2009 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2008 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2008 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2008 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2008 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | Chevrolet | Silverado 2500 HD Classic | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | Chevrolet | Silverado 3500 Classic | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | GMC | Sierra 2500 HD Classic | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | GMC | Sierra 3500 Classic | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2007 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2006 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2006 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2006 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2006 | GMC | Sierra 3500 | 6.6L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2002 | Chevrolet | Express 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2002 | Chevrolet | Express 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2002 | GMC | Savana 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2002 | GMC | Savana 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2001 | Chevrolet | Express 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2001 | Chevrolet | Express 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2001 | GMC | Savana 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2001 | GMC | Savana 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2000 | Chevrolet | Express 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2000 | Chevrolet | Express 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2000 | GMC | Savana 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 2000 | GMC | Savana 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 1999 | Chevrolet | Express 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 1999 | Chevrolet | Express 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 1999 | Chevrolet | P30 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 1999 | GMC | P3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 1999 | GMC | Savana 2500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling fan clutch.; Fan Clutch |
| 1999 | GMC | Savana 3500 | 6.5L | V8 | N/A | Reverse rotation severe duty thermal engine cooling 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.