Derale 17" Fan Clutch Fan

Video Transcript for Derale Radiator Fans - Belt-Driven Fans - D17117 Review

Today, we're going to review part number D17117. This is the Derale 17 inch standard rotation fan. It's a clutch fan and is black in color. Now, this fan is designed to replace the factory fan on your vehicle. It has a 8-hole center hub, that will allow you to fit most OE fan clutches. This is a standard rotation, which means it goes clockwise and it produces maximum air flow.

Features the steel hub and the blades are steel. The whole fan is finished in a durable black powder coat finish. Now when you do select a belt-driven fan, the two things you want to make sure of. You want to determine the direction of rotation. This again is the standard rotation, which means it rotates clockwise and it does help you out because if you look on the back of the fan, they'll put a sticker on it and it will tell you. It has an arrow which shows you the rotation.

It will also say this side towards the engine, so you want to mount this towards the engine, so that helps you when you install it. Now, there are some vehicles that will use a reverse rotation, which is a counterclockwise fan. We also sell those on our website, that's part number D17917. It's the same exact fan like this. It is just designed for reverse rotation. The diameter of the fan. The other thing you want to determine when you're selecting a belt-driven fan is the diameter.

The diameter of the measure from the edge of this blade directly across the center to the edge of the blade right across from it. The diameter on this fan, you can see it's 17 inches. What you do want to do is choose the same diameter fan as the fan you're replacing. Now, it also has the flange bolt spacing. I've mentioned it has the 8 holes here in the center hub. The flange bolt spacing, you want to match up when you install this.

You'll use 4 bolts and then this has 8 holes, so you've got 2 different sets at 2 different measurements, so I want to give you those measurements that this will match up to. The first set of holes center to center is 3 inches, that's for these set of holes and then the larger one, set of four is 3-1/4 inches. Now, the flange diameter which is the opening here in the middle, you'll notice it has the 4 tabs right here, so the diameter will have a measurement here, the smaller diameter and then here's the larger diameter. The smaller diameter of your flange would be right at 2 and 3/8 and then the larger measurement of the flange diameter would be 2 and 1930 seconds. Now, the depth from this fan, if I turn it here sideways to give you an idea. The depth which is . Since the blade has a pitch of 27 degrees as you can see here, it gives you a depth to it. It's 2 inches, so this mounting surface is right at the center of that 2 inches, so 1 inch front, 1 inch back right where this mounting surface is. Again, the rotation is clockwise. Now again, the features on this. It is a powder coated black steel. The hub is steel, the blades are steel, and this is designed to give you maximum full time air flow. That should do it for the review on part number D17117, the Derale 17 inch standard rotation fan clutch fan, black in color. .