Miller Stick / Engine-Drive Support

Big Blue 400 Pro

Heavy-industrial diesel engine-driven welder with 400-amp output, ArcReach options, RMD/Pulsed MIG capability on ArcReach models, and 10,000-watt continuous auxiliary power.

Stick (SMAW)MIG with wire feeder (GMAW)Flux-cored (FCAW)DC TIG (GTAW)RMD and Pulsed MIG on ArcReach modelsAir carbon arc cutting and gouging (CAC-A) Heavy industrial diesel engine-drive
Big Blue 400 Pro catalog page

Processes

Stick (SMAW), MIG with wire feeder (GMAW), Flux-cored (FCAW), DC TIG (GTAW), RMD and Pulsed MIG on ArcReach models, Air carbon arc cutting and gouging (CAC-A)

Welding range

CC Stick/TIG: 20 - 400 A. CV MIG/FCAW: 14 - 40 V.

Engine

Kubota V1505 or Mitsubishi S4L2 diesel depending on stock number

Auxiliary power

Single-phase. Peak: 12,000 W. Continuous: 10,000 W.

Weight

Kubota: 950 lb. (431 kg). Mitsubishi: 993 lb. (450 kg).

Class

Heavy industrial diesel engine-drive

Machine Packages

Stock numberCatalog package
907732 Kubota
907732001 Kubota with ArcReach
907732013 Kubota with ArcReach and WIC
951744 Kubota with ArcReach trailer package
907733 Mitsubishi
907733001 Mitsubishi with ArcReach

Welding Output

  • 300 A at 32 V, 100% duty cycle
  • 350 A at 27 V, 100% duty cycle
  • 400 A at 24 V, 100% duty cycle

Key Support Notes

  • ArcReach factory option on select models
  • Quiet operation
  • USB software/log access
  • Trailer package option

Accessories and Process Paths

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SuitCase Feeders

Voltage-sensing or wire-feeder path listed for supported engine-drive machines.

Open support page

ArcReach Smart Feeder

Smart Feeder path for ArcReach-equipped models where catalog-listed.

Open support page

Protective Cover

195301 Protective cover for Big Blue 400 Pro, Big Blue 400 PipePro, and Big Blue 450 Duo CST.

Support path pending
Amazon link: Needs verification.

Dimensions

H: 32 in. / 37 in. to top of exhaust, W: 26.25 in., D: 56 in.

Source: Miller Electric 2026 Full-line Catalog, catalog page 86, literature ED/5.7. Machine and accessory relationships are source-backed catalog references. Amazon purchase links stay separate and only appear after independent product verification.