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Part #: FX274

Flex-a-lite 274 Direct-Fit Dual Electric Fans w/ Variable Controller

2003-2007 Ford 6.0L Powerstroke
Part #: FX274
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The Flex-a-lite 274 Direct-Fit Dual Electric Fans w/ Variable Controller for your 03-07 Ford 6.0L Super Duty will recover horsepower and boost your fuel economy by replacing your stock clutch fan assembly with this dual high-performance electric fan system. Featuring two 15-inch S-Blade electric fans and a Flex-a-lite Variable Speed Controller that varies the fan speed from 60-100 percent, depending on radiator temperature. These powerful fans move up to 6,800 cfm of airflow!


  • Direct-Fit Bolt-On Design
  • Up To 6,800 CFM Of Airflow
  • Quicker Engine Warm Up
  • Includes Variable Speed Controller
  • Meets Recommended Factory GCVW Ratings
  • 1-Year Warranty


  • MFG. Number 274
  • Manufacturer Name Flex-a-lite
  • Shipping Weight 22.00 lb.
  • Shipping Length 32 in.
  • Shipping Width 27 in.
  • Shipping Height 6 in.


Can't tow or go up a mountain pass
Ryan Bryner
Location: Colorado
I have had it on for one year and haven't towed anything. Last weekend I went up a mountain pass and I overheated because the fans didn't push enough air. I have a bulletproof EGR & Oil Cooler so those aren't the issues. Its just a matter of not being able to handle any load what-so-ever with these fans. They should have done more testing.

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Questions and Answers

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Most Popular Questions

Does Flex-a-lite provide any tow ratings for this setup (weight)?
View Staff Answer 

The Flex-a-lite 274 Direct-Fit Dual Electric Fan meets recommended factory GCVW ratings.

How much more air do these flow than the stock Ford F350 6.0L fan? Whats the warrenty?
View Staff Answer 

Your stock clutch fan can flow up to 10,000 CFM. The Flex-a-lite 274 Direct-Fit Dual Electric Fans can flow up to 6,800 CFM. (This modification is intended recover horsepower and boost your fuel economy.)

Flex-a-lite warrants to the original purchaser/user, all Flex-a-lite products to be free of defects in material and workmanship for a period of 365 days (1 year) from date of purchase. Flex-a-lite products failing within 365 days (1 Year) from date of purchase may be returned to the factory through the point of purchase, transportation charges prepaid. If, on inspection, cause of failure is determined to be defective material or workmanship and not by misuse, accident or improper installation, Flex-a-lite will replace the product free of charge, transportation prepaid.

How many amps does it consume at 100% fan speed? What amp alternator is required?
View Staff Answer 
These fans consume 36-48 amps. A factory charging system in good working condition will have no trouble running these fans.