274935 - Miller 274935 Rear Bulkhead Insulator

Restore Your Welder with Authentic Miller Parts

Keep your Miller welder running at peak performance with the Miller 274935 Insulator, Bulkhead Rear. This factory-original replacement part is designed to replace damaged or missing insulators in the rear bulkhead assembly of compatible Miller welding power sources. When it comes to electrical safety and machine longevity, using the correct insulation components is non-negotiable.

The bulkhead insulator functions as a critical safety spacer, preventing electrical contact between live components and the machine casing. If you have noticed physical damage to the rear connections of your machine, or if you are rebuilding a unit after a fault, inspecting the insulators is a key step. A cracked or carbon-tracked insulator can lead to erratic arc performance, internal arcing, or safety hazards for the operator. The Miller 274935 provides the exact fit and dielectric strength required to restore the factory safety margins of your equipment.

Installation of this part is typically straightforward for those familiar with welding machine repair. Because it is an OEM part, you can trust that the mounting holes and physical profile will align perfectly with your machine's rear panel assembly, eliminating the need for modification. This part is constructed from durable, heat-resistant material designed to endure the harsh environment of a fabrication shop.

Welders Supply is your trusted source for genuine Miller Electric repair parts. Please consult your welder's owner's manual or parts breakdown to confirm that part number 274935 is the correct insulator for your specific machine model before ordering.