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  3. Radiator Fans
  4. Fan Clutches
  5. Reverse Rotation
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Derale Thermal Fan Clutch with Reverse Rotation

Derale Thermal Fan Clutch with Reverse Rotation

Item # D22140
Our Price: $70.10
You Save: 45%
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With its all-aluminum body and multi-fin design, this replacement fan clutch offers superior functioning. 1-800-940-8924 to order Derale accessories and parts part number D22140 or order online at Free expert support on all Derale products. Great prices and Fastest Shipping for Derale Thermal Fan Clutch with Reverse Rotation. Accessories and Parts reviews from real customers.
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  • Reviews (2)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Derale Accessories and Parts - D22140

  • Radiator Fans
  • Fan Clutches
  • Reverse Rotation
  • Thermal
  • Derale

With its all-aluminum body and multi-fin design, this replacement fan clutch offers superior functioning.


  • Thermal model engages the fan based on the under-hood temperature, ensuring airflow when cooling is most necessary
  • Aluminum construction allows for maximum heat dissipation
  • Multi-fin design transfers greater volume of air to dispel more heat
  • Heavy-duty bearing with high-temp moly grease creates a more durable, higher-functioning clutch
  • Reverse rotation design
  • Made in USA
  • 1-Year warranty

The fan clutch is an important component of most belt-driven fan systems. It ensures that that the fan is engaged at low speeds or high temperatures to provide adequate airflow to your vehicle's cooling system. When sufficient airflow is present, as is usually the case when your vehicle travels at high speeds, the clutch will disengage the fan to save on power, removing that additional load from your engine so that it may run more efficiently.

A thermal fan clutch relies on a thermostatic coil to read the under-hood temperature. When the temperature reaches a set level, the fan will engage to provide additional airflow for the cooling system. If the temperature drops to a set level, the fan will then disengage to save on power and decrease the load against the engine, thus allowing your vehicle to run more efficiently.

22140 Derale Thermal Fan Clutch with Reverse Rotation

This Product Fits The Following Vehicles

Video of Derale Thermal Fan Clutch with Reverse Rotation

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Derale Radiator Fans - Thermal Fan Clutch - D22140

Hello, everybody, this is Jeff at Today will take a look at this Derale thermal fan clutch with reverse rotation. Now this is designed to fit the 1988 to 1995 Chevrolet and GMC truck and SUV with the 4.3 liter V6, a five liter V8 and the 5.7 liter V8 engines. This is a thermal model that will engage the fan based on your under hood temperature. It ensures air flow when cooling is most necessary. Now a thermal fan clutch uses a bimetallic spring right here to sense the temperature.

So when the engine's cool, the fan is disengaged. Now, as the temperature increases, the spring will rotate the valve plate and allows the fluid to flow. And this engages the fan. And as the temperature drops the spring relaxes rotating the valve plate back. This stops the fluid flow and disengages the fans pretty simple operation.

This is a nice aluminum construction, allows for maximum heat dissipation. You can see it as a multi-fin design transfers greater volume of air to dispel more heat, does use a heavy duty bearing with high temperature molly grease creates a more durable higher functioning clutch. And we mentioned this as a reverse rotation design. So that means basically, it's vehicles that if you're standing at the front of the car looking back to the front of the engine this will rotate in a counterclockwise direction. And this part is made in the USA does come with the four bolts for installation but that should do it for the review on the Derale thermal fan clutch with reverse rotation..

Customer Satisfaction Score:

Customer Reviews

Derale Thermal Fan Clutch with Reverse Rotation - D22140

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

With its all-aluminum body and multi-fin design, this replacement fan clutch offers superior functioning.


This fan clutch works well mated to a Derale fan on a new chevy 350 HO crate engine in my '78 4x4 truck. Many hours of towing a camp trailer and 4-wheeling with no problems. Runs at operating temp all day, year round.

Still working fine after 6000 miles
Gregory - 08/20/2017


Great Company to deal with, Really good communication. The fan and fan clutch were good quality and the website was very helpful.

Everything works fine. No problems at all.
John M - 06/29/2016


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Info for this part was:

Employee DeAnne T
Updated by:
DeAnne T
Employee Adele M
Updated by:
Adele M
Employee Jessie B
Updated by:
Jessie B
Employee Jeff D
Installed by:
Jeff D

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