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Flex-a-lite Radiator Fans FLX2016 Review

Speaker 1: Today we're going to take a look at the Flex-a-Lite 16 inch flex fan. This is going to be stainless steel and a belt driven fan, and it does come oriented for standard rotation. The nice thing about this is that it is a belt driven puller fan, so it doesn't have a clutch, and that means it's going to spin at 100% of the water pump speed. Which means better cooling, even at high RPM. As you can see, it's going to have those curved stainless steel blades. And that's going to offer better airflow at idle.

Derale Radiator Fans D66825 Review

Speaker 1: Today we're taking a look at the Derale 25 and five eighths inch, dual, high output electric radiator fan. Now this high output, dual radiator inaudible 00:00:10 fan is designed to help maintain optimal engine operating temperature. It efficiently moves 4,000 cubic feet per minute of air at zero static pressure. That's 2,000 CFM per fan. It restores horsepower and torque used by belt driven fans. And it draws power from the alternator, not the engine, with minimal mechanical load.

Derale Radiator Fans D66830 Review

Speaker 1: Today, we're going to take a look at the Derale 22 and a half inch dual high output electric radiator fan with the aluminum shroud. Now, this is a high output dual radiator puller fan, which will help maintain optimal engine operating temperature. This will efficiently move 3,750 cubic feet per minute of air at zero static pressure. This will help restore horsepower and torque that's used up by your belt driven fans. This will draw power from your alternator, not the engine, with minimal mechanical load. It does include this pulse width modulation controller and the wiring.

Derale Radiator Fans D16842 Review

Today we're going to look at the Derale 26 inch dual high output electric radiator fan with the aluminum shroud assembly. Now belt driven fans will use up power from your engine to turn the fan. Whereas electric fans will not, so that removes any unnecessary load, and increasing both your fuel economy and your horsepower. Also, you don't have to worry about an electric fan slowing down at low RPM as a lot of your belt driven fans do. So you're guaranteed sufficient air flow regardless of the vehicle speed. Now this whole assembly here will improve your overall performance of your vehicle.

Derale Radiator Fans D17119 Review

Today we're gonna take a look at the Derale 19 inch belt-driven standard rotation clutch fan. Now this fan will offer maximum full-time airflow. This will serve as a replacement for the factory fan, has an eight hole design hub that fits most OEM fan clutches. This is constructed on a durable steel, has a nice black powder-coat finish to it and it is made in the USA. A few specs on this: the overall diameter from edge to edge is 19-and-one-eighths inches, total depth gonna be right about two inches deep, the blade pitch on this is 27 degrees. Now it does have a flange adjustability. In other words, bolting onto the flange, anywhere from two-and-three-eighth inches to two-and-nineteen-thirty seconds and this is a standard rotation fan and, basically, that means if you stand in the front of your car and look towards the back, this will rotate clockwise but that should do it for the review on the Derale 19 inch belt-driven standard rotation clutch fan..

Flex-a-lite Radiator Fans FLX1319 Review

Today we're going to take a look at the Flex-a-Lite 19 inch Belt-Driven Standard Rotation Flex Fan, and it's blue in color. This Flex-a-Lite Flex Fan will move a considerable amount of air at idle. The blade's flattened out at a higher engine RPM to reduce engine drag for better performance and improved fuel economy. It has an aggressive pitch blade design so it does move the most air at idle, delivers extra cooling at low engine speeds when you really need it. The actual fan diameter is 19 and 3/8 inches. The blue star, and then it has the six stainless steel blades on it that do flex. The pilot hole is 5/8 inch diameter.

Flex-a-lite Radiator Fans FLX180 Review

Today we're going to take a look at the Flex-A-Lite 15" Black Magic Extreme electric radiator fan with the shroud and the thermostat controller. Now this Flex-A-Lite universal Black Magic Extreme S-Blade electric radiator fan can recover engine power and increase fuel economy when used as a primary cooling fan to replace the belt-driven fan. This part includes the electric fan with the one-piece shroud made from a nice rugged nylon, helps withstand the high under hood temperatures. It does come with the aluminum brackets I have laid out here. The temperature control unit right here has an adjustable thermostat from 180 degrees to 240 degrees Fahrenheit. Also has terminals up at the top here for A/C activation and/or cockpit control. Has a wiring kit bag with all the mounting hardware and installation hardware for installing it. Now this fan is reversible, it can be a pusher or a puller application, and you'll just change it by popping this clip off and flipping the fan over. It does has as you can see the eight sweep blade design which is engineered for efficiency and nice quiet operation.

Flex-a-lite Radiator Fans FLX114 Review

Today we're going to take a look at the Flex-a-lite 14-inch Trimline Reversible Electric Radiator Fan. Now, this Flex-a-lite Trimline electric fan can be used as either a primary or an auxiliary fan. This economical fan will free up any wasted horsepower and increases gas mileage when used as a primary fan to replace the stock fan. Now, when this is used as an auxiliary fan, it will provide additional cooling for an engine that is prone to overheating. It is a reversible fan, can be used in pusher or a puller application. It is shipped to you as a puller fan. If you need to make it a pusher fan all you have to do is remove this retaining clip right here, remove the fan blade from the shaft, flip it over, reinstall it on the shaft, put the clip back in and you're all ready to go.

Flex-a-lite Radiator Fans FLX418 Review

Today we're going to be taking a look at a Flex-a-Lite 18-inch nylon engine cooling fan. The Flex-a-Lite nylon fan moves a lot of air and weighs only 11 ounces, so it's a nice, lightweight design. It's going to be ideal for race and performance applications when cost and weight are very important. This is a belt-driven fan. Now, keep in mind that belt fans must be used with a fan shroud. It's going to feature standard rotation. Fan diameter edge to edge is actually 18 3/8 of an inch, so it's in that 18-inch diameter category.

Articles about Radiator Fans

Radiator Fans

Belt-Driven Radiator Fans

Electric Radiator Fans

Radiator Fans Questions and Answers

Is a Radiator Fan Supposed to Spin Freely By Hand When the Engine is Off and Not Running
If there is a fan clutch between the fan and radiator on your vehicle, then you will be able to turn the fan by hand when the engine is off and not running. If there is no clutch, the fan would be difficult to turn because you would have to turn the fan and the pulley, which are turned by a belt. If the fan is turning freely with no clutch, then there is a problem with either the belt being loose or the pulley will need adjustments. A fan clutch will look like part # D22175, just as...
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Electric Fan with Shroud Availability for Chevy Truck with 454 Big Block
The typical CFM requirement for a big block vehicle like your 454 truck for a fan is 3,500 to 4,500 lbs. The part # D16934 can pull 4,000 CFM so it would fall within the range required. This is the highest rated electric fan system we offer so it would be the best option we have. As long as the dimensions of it match the available room you have and the radiator this would be a great option. This fan setup measures 31-3/8" Wide x 15-3/4" tall x 3-1/4" deep. Since you have 3-1/2 inches...
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Vehicle Battery Draining After Installation of Derale Dual High-Output Radiator Fan # D16927
The 85-amp alternator in your vehicle will deliver its full current output only at highway speeds when RPMs are high. In typical around-town driving it will deliver only a fraction of its rated current and only about 40 amps at idle. If you have other current-hungry electronics in your vehicle, for example a powerful audio amplifier and/or a CB radio system, then the combination of power draw from these items together with the Derale fan may be taxing your alternator. You certainly...
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Cooling Options For Chevy Express 3500 When Towing a 30 Foot Travel Trailer
Since you have already added an aftermarket transmission cooler to your Chevy Express 3500, you can make sure you have it mounted in the most efficient location for cooling. The ideal place to mount an aftermarket transmission cooler is behind the front grille but in front of the radiator of your vehicle. Adding an electric fan like the item you selected, Derale Radiator Fans, part # D16834, will help reduce engine temperatures and would be a good option. You will need to measure to...
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Does Derale Race Fan # D17320 Move More Air Than Derale Flex Fan # D17019
The two Derale fans referenced, their 20-inch Race Fan # D17320 and their 19-inch Flex Fan # D17019, will offer similar performance at lower RPMs, but at higher RPMs the Race Fan will deliver more air volume. As a result it will also put somewhat more drag on the motor. This is because the race fan is rigid and its blades maintain their profile at all speeds, while the flex fan blades are designed to flatten out at high RPMs to allow the air flow from the vehicles speed to provide much...
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Electric Fan Recommendation for a Ford Ranger
When choosing an electric fan for your vehicle you will want to make sure to get a fan that will give you the correct Cubic Feet per Minute (CFM) for the size of your engine. The CFM is how much air is being moved through your radiator in one minute. The typical CFM requirement for a 4 cylinder engine is 1,200 to 1,600. If your 1995 Ford Ranger is used for towing you will want additional airflow. It is always recommended to go with the highest rated fan. I am including a link to a FAQ...
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Can the Positive and Negative Leads be Switched to Reverse Fan Rotation on Radiator Fan # D18914
The Derale electric fan, # D18914, is a pusher or puller fan. To reverse the rotation, you would switch the wire leads. I tested it myself just to be certain and sure enough when the leads were switched the fan spun in the opposite direction. I do not think you will be able to use a PWM system with this fan. You would need some sort of control module and the fan is not designed for pulses of voltage as it will not sustain operation unless a constant 12 volts is applied to it. To...
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Is there a Direct Fit Electric Fan Kit for a 1987 Chevrolet Pickup
Direct fit kits are not typically available when swapping from mechanical to electric fans. The best thing to do is measure the backside of your radiator and figure out how much space you have. The kit you were looking at has an overall dimension of 31-3/8 inches wide, 15-3/4 inches tall, and 3-1/4 inches deep. Provided you have enough room for this assembly to fit, it should be able to be installed with no problem. Since you want a fan kit with that is controlled via a thermostatic...
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What Size and Cubic-Feet-Per-Minute Electric Fan Assembly to Use for V8 Engine
You can use the link provided to see all of our electric fans. When it comes to engine cooling, whether you're talking coolant fans or an oil, tranny or power steering cooler, usually more cooling is better. The exact CFM cooling requirement for a V8 engine will vary somewhat among makers, the other equipment installed and the intended use - racing versus towing versus rock crawling, for example. Check with your engine manufacturer. These fans can be sorted based on size in order...
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4,000 CFM Fan Kit Recommendation for 1974 Chevy Corvette with 502 Cubic Inch Big Block
The shallowest fan setup we have that can move 4,000 CFM of air would be the Derale High Output Fan and Shroud part # D16928 as it measures only 3-1/4 inches deep. Height and width though are 28-5/8 inchs and 13-7/8 inches. If you need a smaller height and width but can get by with a slightly deeper setup we have the Derale part # D16826 as well. This measures 25-5/8 inche wide x 17-1/8 inches tall x 4 inches deep. Having either fan setup as a puller instead of a pusher will get...
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How to Pick Out an Electric Radiator Fan for a 2001 Chevy Express 1500 with 5.7 Liter Motor
There isn't one specific electric fan for your 2001 Chevy Express 1500 5.7 liter. You will need to compare the available space you have to mount a fan to the dimensions of the available fans. Keep in mind that if you place the fan in front of the radiator it will need to be a pusher fan. If it is mounted behind the radiator it will need to be a puller fan. Fan # D16934 is a puller so it would have to go behind the radiator. This fan measures 31-3/8" wide x 15-3/4" tall x 3-1/4" deep...
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Fan Recommendation for a 1979 Ford F150 with a 460 Cubic Inch Engine
As long as you have the clearance, the Derale Radiator Fans # D16826 that you referenced would be a good choice for your 1979 Ford with a 460 cubic inch motor. This unit can pull up to 4,000 cfm and should work well for cooling your vehicle. I attached a picture that shows the dimensions of this setup for you to compare with the size of your radiator. You might also be interested in purchasing a Derale Dual-Fan Adjustable Fan-Control Thermostat # D16789 to allow you to select when...
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Can Derale Dual High-Output Electric Radiator Fan Part # D16927 Be Used with Stock Belt Fan
To use the Derale Dual High-Output Electric Radiator Fan, part # D16927, in your 1956 Chevrolet with 350 small block you will need to be able to fit the 3-3/4-inch-deep fan housing between the radiator and the engine. (This is a puller fan which draws air in through the front of the radiator; it mounts behind the radiator.) The overall dimensions of the fan housing are 26-inches wide x 18 inches tall x 3-3/4-inches deep. This dual-fan has an output capacity of 4000 cubic-feet-per-minute...
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Recommendation for a 1997 Dodge Ram 3500 Diesel and Mounting a Derale 20 Rigid Belt Driven Fan
According to my contacts at Derale the 20 inch Rigid Steel Blade Race Fan # D17320 can not be mounted to a fan clutch, it is considered a rigid mounting system. This fan is considered a standard rotation, has a maximum rpm rating for up to 8,000 rpm. However, if you would like to consider a fan that will mount to your fan clutch, then you would need the # D17120. This style of fan would mount to your existing fan clutch, and would not need a spacer for mounting. It is also a standard...
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Recommendation of Electric Fan for 1988 Ford Ranger With 2.9L Engine
When choosing an electric fan for your vehicle you will want to make sure to get a fan that will give you the correct Cubic Feet per Minute (CFM) for the size of your engine. The CFM is how much air is being moved through your radiator in one minute. The typical CFM requirement for a 6 cylinder engine is 1,600 to 2,000. If your 1995 Ford Ranger is used for towing you will want additional airflow. It is always recommended to go with the highest rated fan. I am including a link to a FAQ...
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Transmission Cooler Recommendations for a 2008 Ford F-150
Adding fans like # D16105 will optimize the cooling efficiency of the factory cooler but you are not likely to see additional benefits if traveling at highway speeds. The benefits will come with the vehicle moving slowly are stopped. What I recommend is adding a supplemental remote cooler with its own fan, like # D12733 or a kit like # D15950. The benefit is that you can mount this type of cooler where you have space and you will receive the optimum amount of cooling.
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Will Dual or Single Radiator Fan Provide Better Cooling
A dual-fan 4,000 CFM set-up would move more air over a larger portion of the radiator than a single 3,600 CFM fan would. The dual-fan set-up would be my recommendation.
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Is a Fan Shroud Needed When Installing Electric Fans In a Sandrail
Whether or not you will need a shroud depends on how you are building the sandrail. If your rail is going to be open air, a fan shroud probably will not be needed to aid the cooling process. The Derale Tornado fans have a bit of a shroud built in, and they are close enough to the radiator that an additional shroud should not be needed. The 14 inch Tornado fans you found would work fine. You could probably even go a bit smaller depending on how much airflow your radiator will be getting....
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Electric Fan and Shroud Recommendation for a 1952 Chevy 3100 Truck
I think your best option would be the Derale 17 inch High-Output, Electric Radiator Fan w/ Aluminum Shroud # D16816. You will want to check the dimensions to be sure that this will fit behind your radiator, but it has the same size fan as the # D18217 that you referenced plus a shroud.
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1956 Chevy Electric Radiator Fan Recommendations
In order to determine the correct fit fan for the front of the radiator on your 1956 Chevy you will need to measure the area in front of your radiator and determine how much room you have to work with. The Derale Radiator Fan # D18910 that you referenced has overall dimensions of 11-1/2 inches wide by 10-3/4 inches tall and 2-3/8 inches deep. If you find that you have room in front of your radiator for a fan with these dimensions then this fan should work for you. However, you should...
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