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249040 - Miller M-150 MIG Gun Replacement 12ft 150A

Packaging: 1 PER EA
$426.78/EA $300.52/1 PER EA only $300.52/EASave 30%

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OVERVIEW

Restore Your Welder's Performance

Is your Millermatic sputtering, feeding wire erratically, or just looking a bit worse for wear? The Miller M-150 MIG Gun is the perfect solution to breathe new life into your trusty welder. As the genuine replacement for the M-10 and M-100 guns often found on older machines, the M-150 offers a significant upgrade in build quality and ergonomics. There is nothing quite like the feeling of a brand-new torch—crisp trigger action, smooth wire delivery, and a clean nozzle ready to lay down perfect beads.

Extended Reach for Better Access
One of the standout features of this M-150 model is its 12-foot cable. Many smaller welders come stock with a 10-foot gun, which can leave you just inches short when working around a car chassis or a large trailer. That extra two feet gives you the freedom to move around your workpiece without dragging the welder constantly, while still being short enough to ensure the drive rolls can push the wire smoothly without bird-nesting.

Plug-and-Play Simplicity
Designed specifically for the Millermatic lineup, this gun plugs directly into your machine with zero modifications required. Whether you are running a Millermatic 140 Auto-Set, a vintage 130XP, or a 180, the trigger lead and power pin will mate perfectly. It comes ready to weld right out of the box, pre-loaded with a liner and tip for the most common wire sizes (.030-.035).

Comfort and Durability
Welding for hours can be tiring, but the M-150's contoured handle fits naturally in the hand, reducing grip fatigue. The heavy-duty strain relief prevents the cable from fraying at the handle, a common failure point on cheaper aftermarket guns. Stick with genuine Miller parts to keep your arc smooth and your welds strong.

Additional Information
Brand:Miller
Length:12 ft
Wire Size:0.030" - 0.035"
Amperage:150
Item:MIG Gun
Fits Which Model:Millermatic 120, 150, 130, 130XP, 135, 140s, 175, 180s, 185
Torch Type:MIG Gun
Amperage Rating:150A
Cable Length:12 ft
Wire Diameter Capacity:0.030", 0.035"
Cooling Method:Air Cooled
Duty Cycle:100% @ 100A, 60% @ 150A
Gas Type:CO2, Mixed Gas
Packaging Description:1 PER EA

INCLUDED

  • 1 x M-150 MIG Gun (12 ft cable)
  • 1 x Installed Liner (for .030-.035 wire)
  • 1 x Contact Tip (installed)
  • 1 x Nozzle (installed)
  • 1 x Owner's Manual

APPLICATIONS

  • Automotive Repair and Restoration
  • Light Industrial Fabrication
  • Farm and Ranch Maintenance
  • DIY and Hobbyist Projects
  • Sheet Metal Welding
  • Maintenance and Repair Operations (MRO)

FAQ

Yes, the Miller M-150 is the standard replacement gun for the Millermatic 140, as well as the 135, 175, 180, and 211 models.

Yes, the M-150 is the direct upgrade and replacement for the obsolete M-10 and M-100 series MIG guns.

It uses standard Miller M-Series consumables, including contact tips (000 series) and slip-on nozzles.

Yes, but you will need to install a .023 contact tip. The installed liner is for .030-.035, but it will generally feed .023 wire acceptably for short distances. For optimal performance with .023, changing to a smaller liner is recommended.

Yes, the liner in the M-150 gun is replaceable. It comes with a liner installed, but you can swap it out if it becomes kinked or clogged.

The M-150 is rated at 150 Amps at 60% duty cycle using CO2 gas, or 100% duty cycle at 100 Amps.

No, this gun is designed for machines with a gas solenoid valve built into the welder itself (like the Millermatic series). It does not have a manual gas valve in the handle.

12ft is generally considered the maximum safe length for small wire feed motors found in compact welders. It offers better reach than a 10ft gun without causing significant feeding issues.

CATALOGUE & SPEC SHEETS

Spec Sheet