1993 Miller BIG BLUE 400D For Sale in Chicago, Il

Deutz 3 Cylinder Engine, Welding Leads Not Included Closing Time: 2026-09-25 09:02:46 AM

Miller Big Blue 400D is a diesel engine-driven welder/generator used for construction, maintenance, fabrication, and pipeline welding applications. It is part of Miller's Big Blue series and is designed to provide constant current output for stick welding and TIG welding, along with auxiliary power for tools and jobsite equipment. The 400D model is commonly selected for field work where portability, durability, and multi-process capability are required. Typical features include a rugged engine package, stable arc performance, and integrated generator output. Exact specifications vary by configuration, year, and engine option, so model identification should be confirmed by serial number and data plate.