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Derale 29" High-Output, Electric Radiator Fan-and-Shroud Assembly - 4,000 CFM - 4000 CFM

(19 reviews)

Code: D16928

Our Price: $457.38

In Stock

radiator fans
Electric Fans
High-Output Fan
29 Inch Diameter
4000 CFM
Derale

...intended for primary cooling and should, therefore, provide enough CFM to replace your vehicle's factory fan, you will still need to determine the CFM requirements for your engine before making your...

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Derale 32" High-Output, Electric Radiator Fan-and-Shroud Assembly - 4,000 CFM - 4000 CFM

(19 reviews)

Code: D16934

Our Price: $429.96

radiator fans
Electric Fans
High-Output Fan
32 Inch Diameter
4000 CFM
Derale

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Derale 26" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - PWM - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D66842

Retail: $1,166.67

Our Price: $974.60

radiator fans
Electric Fans
High-Output Fan
26 Inch Diameter
4000 CFM
Derale

...maintain optimal engine operating temperature Efficiently moves 4,000 cubic feet per minute (CFM) of air at 0 static pressure Restores horsepower and torque used by belt-driven fans Draws power from the...

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Derale 26" Dual, High-Output Electric Radiator Fan w/ Steel Shroud - PWM - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D66927

Our Price: $931.59

radiator fans
Electric Fans
High-Output Fan
26 Inch Diameter
4000 CFM
Derale

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Derale 27" Dual High-Output, Electric Radiator Fan-and-Shroud Assembly - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D16837

Retail: $641.25

Our Price: $605.08

radiator fans
Electric Fans
High-Output Fan
27 Inch Diameter
4000 CFM
Derale

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Most Popular radiator fans Expert Q&As

Is Derale Transmission Cooler D15200 Thermostat Controlled

Hey David, the Derale transmission cooler part #D15200 that you referenced does not come with a thermostat or any install kit components but if you wanted a similar option that does have all of that you would want the part #D15500.

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What Transmission Temperatures Would be Seen in Traffic with Derale Combo Engine Transmission Cooler

That's pretty hard to give an exact answer on but with the install of the Derale Electra-Cool Combo Engine and Transmission Cooler Assembly w/ Fan #D15200 you'd see the fluid stay right around 175 degrees in traffic on a hot day since the fan…

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What is Individual CFM Rating of Each of the Fans of the Flex-a-lite Dual Electric Radiator Fan

Each of the fans of the Flex-a-lite Dual 13-1/2" Electric Radiator Fans w/ Shroud #FLX295 can flow up to 2,300 CFM. Also worth mentioning is that the likelihood of one of the fans failing is very low.

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Which Way is Standard Rotation on Radiator Fan

Hey Dalton, that is correct. The standard rotation on radiator fans like the part #FLX6715 is clockwise.

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Backup Camera for 2022 Grand Design Imagine 2600RB

Many of the Grand Design Imagine RV's are pre-wired for the Furrion Vision S Wireless RV Backup Camera System. This is available in two different configurations; #FOS43TASF for 4.3" or the #FOS05TASF for a 5"monitor. These are both…

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Does the Hellwing Rear Ant-Sway Bar Come with all the Parts Needed to Install and Function?

Hello John, Yes, the Hellwig Adjustable Big Wig Rear Anti-Sway Bar - 1-1/4" Diameter #HE87FR will come with everything you need to install it on your 2017 Ram 2500, except the tools needed. I just installed a Hellwing rear ant-sway bar on our…

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Depth of Derale Thermal Fan Clutch with Reverse Rotation D22140

In regards to the Derale Thermal Fan Clutch with Reverse Rotation part #D22140, the distance from the mounting surface to the end of the shaft is 1-13/16" and the distance from the mounting surface to the end of the clutch is 1-3/4". I went…

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Replacement Trailer Hub Assemblies For 3,500LB Axles Using L68149 Inner and L44649 Outer Bearings

We will have several different pre packed hub assemblies for you to choose from depending on if you need a hub for drum brakes or hubs for an idler axle. Here is a list of hubs for both drum and idler axles in the different bolt patterns that use the…

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Does the Dexter Trailer Hub and Drum Assembly #84546UC3 Come Fully Assembled

The Dexter Trailer Hub and Drum Assembly, part #84546UC3, is a trailer hub and drum with the lug nuts, bearings, bearing races, grease cap and grease seal included. It is designed to fit 3,500-lb axles. After removing your old drum and cleaning the…

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Hub and Drum for Dexter Trailer Axle Beam with E-Z Lube Spindles

The correct hub and drum assembly to use with the Dexter Trailer Axle Beam with E-Z Lube Spindles #6340624 is the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ. A set of this hub and drum have a 5,200 lb capacity just like the axle, has an E-Z…

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Does Grease Seal of Easy Grease Trailer Hub and Drum Prevent Grease from Getting on Brakes

Hey Brian, yes the grease seal of the Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles #AKHD-545-35-EZ-K is designed to prevent grease from getting on the brake components. But what I would guess happened to you is that you overfilled the hub…

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Best Replacement For Norcold N611 RV Refrigerator

Hey Jairo. So we do not offer a direct replacement for the Norcold N611, but we do have a good replacement option for you. It really comes down to what will fit in your cutout space. Take a look at the Norcold RV Refrigerator w/ Freezer - 8.2 cu ft -…

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Derale 28-1/4" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - PWM - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D66838

Our Price: $969.73

radiator fans
Electric Fans
High-Output Fan
28-1/4 Inch Diameter
4000 CFM
Derale

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Derale 25-5/8" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - PWM - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D66826

Retail: $1,217.61

Our Price: $974.60

radiator fans
Electric Fans
High-Output Fan
25-5/8 Inch Diameter
4000 CFM
Derale

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Derale 12" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - 4,000 CFM - 4000 CFM

(2 reviews)

Code: D16836

Retail: $749.33

Our Price: $615.60

radiator fans
Electric Fans
High-Output Fan
12 Inch Diameter
4000 CFM
Derale

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Derale 26-3/8" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - PWM - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D66836

Retail: $1,031.94

Our Price: $974.60

radiator fans
Electric Fans
High-Output Fan
26-3/8 Inch Diameter
4000 CFM
Derale

More Information >

Derale 12" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - 4,000 CFM - 4000 CFM

(2 reviews)

Code: D16838

Retail: $631.80

Our Price: $610.65

radiator fans
Electric Fans
High-Output Fan
12 Inch Diameter
4000 CFM
Derale

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Derale 27" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - PWM - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D66837

Our Price: $974.60

radiator fans
Electric Fans
High-Output Fan
27 Inch Diameter
4000 CFM
Derale

More Information >

Derale 25-5/8" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud - PWM - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D66825

Our Price: $974.60

radiator fans
Electric Fans
High-Output Fan
25-5/8 Inch Diameter
4000 CFM
Derale

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Derale 26" Dual High-Output, Electric Radiator Fan w/Aluminum Shroud Assembly - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D16842

Our Price: $629.72

radiator fans
Electric Fans
High-Output Fan
26 Inch Diameter
4000 CFM
Derale

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Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud and Vents - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D16826

Retail: $615.60

Our Price: $600.74

radiator fans
Electric Fans
High-Output Fan
26 Inch Diameter
4000 CFM
Derale

More Information >

Derale 26" Dual High-Output, Electric Radiator Fan-and-Shroud Assembly - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D16927

Our Price: $578.66

radiator fans
Electric Fans
High-Output Fan
26 Inch Diameter
4000 CFM
Derale

More Information >

Derale 25-5/8" Dual High-Output, Electric Radiator Fan w/ Aluminum Shroud - 4,000 CFM - 4000 CFM

(7 reviews)

Code: D16825

Our Price: $615.60

radiator fans
Electric Fans
High-Output Fan
26 Inch Diameter
4000 CFM
Derale

More Information >

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4000 CFM (16)

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Derale (16)

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High-Output Fan (16)

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What our customers are saying:

Very easy process, good prices and my products were shipped on time and were delivered on time. The instructional videos online helped make installation easy!

Ryan

Portland, OR

Filter Results

12 Inch Diameter
$610.65 - $615.60
25-5/8 Inch Diameter
$974.60 - $974.60
26 Inch Diameter
$578.66 - $974.60
26-3/8 Inch Diameter
$974.60 - $974.60
27 Inch Diameter
$605.08 - $974.60
28-1/4 Inch Diameter
$969.73 - $969.73
29 Inch Diameter
$457.38 - $457.38
32 Inch Diameter
$429.96 - $429.96

Radiator Fans with 4000 CFM for serious cooling

Turn up the airflow with 4000 cfm to keep big-blocks, high-horsepower builds, and desert heat in check. If space is tight, shallow setups are available, and running them as a puller instead of a pusher delivers the best cooling capacity. High-output electric fans can tax a smaller alternator at idle, so consider your charging system, and a shroud that overlaps side tanks may have a slight effect yet still functions as designed.

Do I need a relay and thermostat with 4000 CFM fans?

Yes, use a dual-fan relay/harness and a thermostatic controller. This helps manage the higher amp load and cycles the fans at the right temp, which is especially helpful in very hot climates. If you're switching from a belt-driven flex fan, going electric can also free up a bit of horsepower.

Is 4000 CFM enough for big-block or high-HP engines?

Yes, 4000 CFM can handle serious heat. It's kept a 900 HP setup at 160 degrees after a 9 sec pass and helped a 454 run cool in desert conditions. Use it as a puller for the best cooling capacity. Make sure your radiator and shroud pairing suits your core size so airflow isn't restricted.

What electrical setup do 4000 CFM dual fans need?

Plan for high current draw. Some dual setups draw 50 amps (25 amps per fan). An 85-amp alternator may deliver only about 40 amps at idle, which can drain the battery; a higher-output unit like 140 amps or a smaller alternator pulley can help. Also check battery age and condition.

Will a 4000 CFM dual fan work with tight engine bay clearance?

Often, yes—just verify depth. Measure from the pulley to the radiator core and compare to the fan-and-shroud thickness. If space is tight, look for a low-profile assembly. If a shroud slightly overlaps the radiator side tanks, cooling effect may change a bit but the unit can still function as designed.