1. Accessories and Parts
  2. Derale
  3. Radiator Fans
  4. Fan Clutches
  5. Standard Rotation
  6. Thermal
Derale Thermal Fan Clutch

Derale Thermal Fan Clutch

Item # D22052
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D22052 - Thermal Derale Radiator Fans
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With its all-aluminum body and multi-fin design, this replacement fan clutch offers superior functioning. Call 800-298-8924 to order Derale accessories and parts part number D22052 or order online at etrailer.com. Free expert support on all Derale products. Guaranteed Lowest Price and Fastest Shipping for Derale Thermal Fan Clutch. Accessories and Parts reviews from real customers.
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Derale Accessories and Parts - D22052

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

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
  • 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.

22052 Derale Thermal Fan Clutch

This Product Fits The Following Vehicles

Video of Derale Thermal Fan Clutch

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

Video Transcript for Derale Radiator Fans D22052 Review

Speaker 1: Today we're taking a look at the Derale Thermal Fan Clutch. This is a heavy duty design with standard rotation. This is a general application so it fits various AM General, GM and Ford car and truck models.Now, a thermal fan clutch relies on a thermostat coil to read the under hood temperature. When the temperature reaches a set level the fan will engage to provide the additional air flow for the cooling system. If the temperature drops to a set level than the fan will disengage to save on power and decrease the load against the engine. This allows your vehicle to run more efficiently.

It also saves fuel and reduces fan noise and minimizes belt wear.The unit's made from an aluminum construction. It allows for maximum heat dissipation. Has the multi thin design, which transfers a greater volume of air to dispel more heat. We're looking at the nice heavy duty bearing which creates a more durable higher functioning clutch. So that's internal, but it does feature a heavy duty bearing with the appropriate oil, or grease.

Product's made in the USA.Now there are four main ways to test for a worn fan clutch. If any of these are present then it may be time to replace the fan clutch. If you have excessive fan clutch play. So you can actually manually move the tip of the fan back and forth, if there's a lot of play than the clutch bearing is worn. You're looking for anything more than a quarter inch to a half inch of play.

If you notice a lot of grease build up, you can look for greasy dirt of the fan clutch or a fluid leak around the outer seal, or the thermostat or spring. If you notice excessive slippage, or if the fan spins freely and does not engage that might be a sign that it needs to be replaced. If you experience freezing up, so if the fan blade can't be rotated by hand or if hand rotation makes a harsh rumbling noise the fan clutch bearing is probably worn, if not all the way failed. If there's excessive vibration of the fan clutch or the water pump then you need to look into making a replacement.Doing the replacement really isn't too difficult. What you need to do is remove the fan clutch by loosening the four mounting bolts at the water pump shaft.

Then you'll need to remove the fan blade from the old fan clutch and install it on the new fan clutch using the new bolts provided with this unit. So, it comes with four specially heat treated bolts that are supplied with the fan clutch to mount the fan to the clutch body. So be sure to use the new ones and not the old ones. Then you would mount the new fan clutch to the water pump pad using the existing hardware.That's going to do it for today's look at the Derale Thermal Fan Clutch heavy duty standard rotation.


Ask the Experts about this Derale Accessories and Parts

  • Replacement Fan Clutch and Blade For 1984 Ford F-250
    I may have an option for you but Flex-A-Lite does not have a proper belt driven fan for the 1984 Ford F-250. You will need Derale Thermal Fan Clutch part # D22052 and one of the following fans depending on how much space you have available. 17" Fan part # D17117 18" Fan part # D17118 19" Fan part # D17119 20" Fan part # D17120
    view full answer...

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Info for this part was:

Updated by:
DeAnne T
Updated by:
Adele M
Updated by:
Brian B
Updated by:
Jessie B
Installed by:
Cole B

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