278733 - Miller Exciter Stator and Endbell Assembly

Get Your Engine Drive Back to Work

If your Miller engine drive welder has stopped putting out power, the issue might be buried deep in the generator end. The Miller 278733 Endbell with Exciter Stator is the factory-correct replacement part you need to fix a machine that has lost its spark. The exciter stator is what "wakes up" your generator; without it, the machine is just a loud engine that can't weld. Over time, vibration, moisture, and heat can damage the windings in the stator, leading to a dead machine. This replacement part solves that problem by providing a brand-new, factory-wound stator already installed in a rugged new endbell housing.

We know that when your welder is down, you aren't making money. Trying to source used parts or attempting to repair a shorted stator often leads to more downtime and frustration. This OEM assembly is designed to bolt right up to compatible Miller units, ensuring the bolt holes line up and the internal clearances are perfect. It takes the guesswork out of rebuilding the back end of your generator. Because it is a genuine Miller part, you can trust the wiring insulation and the metal casting to hold up against the rough conditions of a job site or the back of a welding rig.

This package includes the complete endbell structure with the exciter stator ring integrated inside. It is a direct replacement for the original part found on specific serial number ranges of Miller equipment. Before ordering, grab the serial number off your machine's faceplate and check compatibility to make sure this is the exact part you need. Don't let a bad generator component retire your trusty welder—swap out the endbell and get back to laying beads and running tools with full power.