Skip to Main Content
Canadian
Canadian owned and operated

10401605 - Tweco Classic 4 MIG Gun 400A 25ft Euro Connect

Packaging: pack of 1
$2,383.13/EA $1,728.45/pack of 1 only $1,728.45/EASave 27%

Usually ships within 3-5 business days

OVERVIEW

The Industry Standard: Tweco Classic No. 4 MIG Gun

When professional welders think of a heavy-duty MIG gun, the Tweco Classic No. 4 is often the first tool that comes to mind. Renowned for its rugged durability and exceptional performance, this 400-Amp air-cooled gun is built to withstand the harshest industrial environments. Whether you are welding structural steel, heavy equipment, or performing fabrication in a shipyard, the Classic No. 4 delivers the consistent arc stability and wire feeding you need to get the job done right. This model comes equipped with a 25-foot cable, giving you the extra reach required for working on large assemblies without constantly moving your wire feeder.

Universal Compatibility & Comfort

This version of the Classic No. 4 features a Euro-style back-end connection. This universal connector allows you to plug the gun directly into any welder equipped with a Euro receptacle, regardless of the machine's brand. It eliminates the need for complex adapters and ensures a secure, gas-tight seal every time. The gun also features Tweco's signature paddle-style handle. Designed with ergonomics in mind, it fits naturally in the hand, reducing operator fatigue during long shifts. The trigger action is crisp and reliable, rated for over a million cycles.

Easy Maintenance, Low Downtime

One of the biggest advantages of the Tweco Classic series is the simplicity of its consumables. It uses standard Tweco tips, nozzles, and diffusers that are available at virtually every welding supply store in the world. You won't have to hunt for proprietary parts or deal with expensive, hard-to-find components. The metal-jacketed gooseneck is tough enough to survive drops and impacts, while the heavy-duty cable resists cuts and abrasion. Invest in the Tweco Classic No. 4 for a welding gun that works as hard as you do.

Additional Information
Brand:Tweco
Amperage:400
Length:25 ft
Back End:Euro
Wire Size:0.035" - 0.045"
Cooling Method:Air Cooled
Duty Cycle:60% @ 400A (CO2)
Torch Type:MIG Gun
Handle Style:Classic Curved
Process Type:MIG (GMAW), Flux Cored (FCAW)
Packaging Description:pack of 1

INCLUDED

  • 1x Tweco Classic No. 4 MIG Gun (400A)
  • 1x 25 ft. Cable Assembly
  • 1x Euro-Style Back End Connection
  • 1x Standard Consumable Setup (Contact Tip, Nozzle, Diffuser)
  • 1x Liner (Pre-installed for .035-.045 wire)

APPLICATIONS

  • Structural Steel Fabrication
  • Heavy Equipment Manufacturing
  • Shipbuilding and Offshore
  • General Industrial Fabrication
  • Pipeline Welding
  • Repair and Maintenance

FAQ

The Tweco Classic No. 4 is rated at 400 Amps at 60% duty cycle when using CO2 gas, or 300 Amps at 60% duty cycle with mixed gases.

This specific model (1040-1605) comes with a Euro-style quick-disconnect connection.

It uses standard Tweco consumables: 14-Series contact tips, 24-Series nozzles, and 54-Series gas diffusers.

The cable length is 25 feet (approximately 7.6 meters).

Yes, the Tweco Classic No. 4 is suitable for both solid MIG wire and flux-cored wires, provided the correct liner and drive rolls are used.

Yes, the gun uses 44-Series liners which are easily replaceable from the back end of the gun.

Yes, it typically comes pre-installed with a liner suitable for .035" to .045" wire.

The standard replacement trigger switch for the Classic handle is typically part number 9425 (Tweco stock code).