Miller Stick / Engine-Drive Support

Big Blue 400 PipePro

Pipeline-focused diesel engine-drive with Wireless Interface Control standard, downhill stick performance, MIG/FCAW support, and 400-amp output.

Stick (SMAW)MIG with wire feeder (GMAW)Flux-cored (FCAW)DC TIG (GTAW)RMDPulsed MIGAir carbon arc cutting and gouging (CAC-A) Heavy industrial pipeline engine-drive
Big Blue 400 PipePro catalog page

Processes

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

Welding range

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

Engine

Mitsubishi S4L2 diesel, 24.7 hp at 1,800 rpm

Auxiliary power

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

Weight

993 lb. (450 kg)

Class

Heavy industrial pipeline engine-drive

Machine Packages

Stock numberCatalog package
907805001 Mitsubishi
907805 Mitsubishi with stainless steel

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

  • Wireless Interface Control standard
  • Pipeline/downhill stick arc characteristics
  • LINE-X cover
  • Compact size for truck space

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

Full KVA Adapter Cord

300517 Full KVA adapter cord listed for Bobcat, Trailblazer, and Big Blue engine-drive models.

Support path pending
Amazon link: Needs verification.

Full KVA Plug Kit

119172 Single-phase 120/240 V, 50 A plug kit listed for Bobcat, Trailblazer, and Big Blue models.

Support path pending
Amazon link: Needs verification.

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.

HWY-Mid Frame Trailer

Trailer path listed for Bobcat, Trailblazer, Big Blue 400 Pro, Big Blue 400 PipePro, and Big Blue 450 Duo CST.

Support path pending

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 87, literature ED/5.10. Machine and accessory relationships are source-backed catalog references. Amazon purchase links stay separate and only appear after independent product verification.