005656 - Miller 6-Inch Plastic Cooling Fan Blade CW Rotation

Restore Your Welder's Cooling System

Keep your welding machine running at peak performance with the Miller 005656 Replacement Fan Blade. Overheating is one of the most common causes of welder failure and downtime. Often, the culprit is a compromised cooling system—specifically, a cracked, broken, or missing fan blade. This 6-inch plastic fan is the direct replacement for specific Miller power sources, designed to get your machine back to its full duty cycle capabilities without the risk of thermal overload.

This fan blade is characterized by its 4-wing design and 30-degree pitch, which work together to scoop and drive air efficiently through the welder's chassis. It is built for motors requiring a Clockwise (CW) rotation and has a precise 0.175-inch center bore. Installing a fan with the wrong rotation will pull air in the wrong direction or fail to move air across critical heat sinks, rendering the cooling system ineffective. Similarly, an incorrect bore size will result in a loose fit or the inability to mount the blade altogether. This OEM part eliminates the guesswork associated with universal parts.

Installation and Maintenance

Replacing a fan blade is a straightforward repair that can significantly extend the life of your welder. Over time, plastic fan blades can become brittle due to heat cycles and age, or they can be damaged by debris entering the machine housing. If you notice your welder is running hotter than usual, making excessive noise, or if you can visually see damage to the fan through the louvers, it is time for a replacement. The Miller 005656 is made from durable white plastic designed to withstand the harsh thermal environment inside a welding power source.

Before ordering, we strongly recommend checking the serial number of your machine or measuring the bore of your existing fan motor shaft. A 0.175-inch bore is a specific size, and ensuring a match is key to a successful repair. Don't let a small part like a fan blade stop your production; keep your Miller welder cool and reliable with this authentic replacement component.