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15501101 - Tweco 55SW Gas Diffuser for No. 5 MIG Guns (5-Pack)

Packaging: pack of 5
$26.94/EA $96.30/pack of 5 only $19.26/EASave 29%

Usually ships within 3-5 business days

OVERVIEW

Reliable Performance for Your Tweco MIG Gun

Keep your MIG gun running smoothly with the genuine Tweco 55SW Gas Diffuser. If you are running a classic Tweco No. 5 or a Spray Master setup, you know that the diffuser is the heart of your front-end consumables. It doesn't just hold the tip; it ensures that your shielding gas flows smoothly and evenly over the weld puddle. A worn or clogged diffuser can lead to erratic arcs, poor gas coverage, and frustrating porosity in your welds. Upgrading to fresh 55SW diffusers restores that crisp, clean performance you expect from Tweco equipment.

Built from heavy-duty brass, these diffusers are tough enough to handle high-amperage heat without warping or seizing. They feature clean, durable threads that make changing contact tips quick and frustration-free—no more cross-threading or loose tips in the middle of a bead. The 55SW is designed to work seamlessly with standard slip-on nozzles and Tweco 14 or 15 series contact tips, giving you the flexibility to tackle different wire sizes without changing the whole head assembly.

This convenient 5-pack is perfect for the professional welder's toolbox. Whether you are in a fabrication shop, on a construction site, or doing heavy repair work, having spares means you never have to stop work due to a burnt-out part. Trust in the quality of original Tweco parts to deliver consistent arc starts and superior weld quality, bead after bead.

Key Features

  • Optimal Gas Flow: Designed to smooth out turbulence for better shielding coverage.
  • Durable Brass Body: Resists spatter adhesion and withstands high heat.
  • Secure Fit: Precision threads keep your contact tip tight and conductive.
  • Standard Compatibility: Fits the industry-standard Tweco guns you rely on daily.
Additional Information
Brand:Tweco
Item:Gas Diffuser
Front End:Tweco
Packaging Description:5 in a pack
Part Number:55SW
Material:Brass Alloy
Compatible Series:Tweco No. 5, Spray Master 450, Eliminator
Compatible Contact Tips:14 Series, 15 Series
Amperage Rating:Up to 500 Amps

INCLUDED

  • 5 x Tweco 55SW Gas Diffusers

APPLICATIONS

  • Heavy Industrial Fabrication
  • Structural Steel Welding
  • Shipbuilding and Marine Repair
  • Automotive Manufacturing
  • General Manufacturing and Maintenance

FAQ

The 55SW is designed for Tweco No. 5, Spray Master 450, and Eliminator series MIG guns. It is a standard part for heavy-duty Tweco setups.

This diffuser accepts standard Tweco 14 Series and 15 Series contact tips.

It is machined from a high-quality brass alloy to ensure good electrical conductivity and heat resistance.

This product (SKU 15501101) is a package containing 5 gas diffusers.

Replace the diffuser if the gas ports become hopelessly clogged with spatter, the threads for the contact tip are stripped, or if the mating surface for the nozzle is damaged.

Yes, the 55SW is typically used with adjustable slip-on nozzles common to the Tweco No. 5 and Spray Master series.

Yes, this is a genuine Tweco product, stock number 1550-1101.