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11601103 - Tweco 11-40 OEM Contact Tips for .040 Wire (1.0mm)

Packaging: 25 per pack
$6.29/ea $112.75/25 per pack only $4.51/eaSave 28%

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OVERVIEW

Tweco OEM 11-40 Contact Tips (.040" / 1.0mm)

Upgrade your welding consumables with Tweco OEM 11-40 Contact Tips, designed to deliver superior arc stability and extended service life. These tips are sized for .040-inch (1.0mm) wire, bridging the gap between the common .035" and .045" sizes often found in industrial applications. By using genuine Tweco parts, you ensure that your MIG gun maintains the correct electrical stick-out and current transfer necessary for high-quality welds.

The 11 Series contact tip is one of the most popular styles in the welding industry, known for its balance of size and performance. It features a robust copper body that effectively dissipates heat, reducing the likelihood of the wire fusing to the tip during long welds. The 1/4"-28 threaded base ensures a tight, secure connection to the gas diffuser, preventing gas leaks and ensuring maximum conductivity. These tips are compatible with a wide array of MIG torches, including the Tweco Spray Master, Classic Series, and many aftermarket guns that utilize Tweco-style front-end parts.

Inconsistent wire feeding is often traced back to worn or low-quality contact tips. The Tweco 11-40 is machined with a smooth internal bore that reduces drag on the wire, allowing for consistent feed speeds and cleaner starts. Whether you are working in an automotive shop, general fabrication, or maintenance repair, these tips provide the reliability professional welders demand. Don't compromise on quality; stick with the brand that defined the standard for MIG welding accessories.

Product Specifications

  • Part Number: 11-40 (Stock Code: 1160-1103)
  • Wire Diameter: .040" (1.0mm)
  • Series: Tweco 11 Series (Standard Duty)
  • Thread Size: 1/4"-28 UNF
  • Material: Copper Alloy
Additional Information
Brand:Tweco
Item:Contact Tip
Wire Size:0.040" (1.0 mm)
Series:11 Series
Product Type:Contact Tip
Material:Copper Alloy
Thread Type:1/4"-28 UNF
Compatible Brand/Model:Tweco #1, Tweco #2, Tweco #3, Tweco #4, Tweco Mini-MIG
Packaging Description:25 per pack

INCLUDED

  • Genuine Tweco 11-40 Contact Tips (.040" / 1.0mm)

APPLICATIONS

  • General Fabrication
  • Automotive Repair
  • Light to Medium Industrial Welding
  • Maintenance and Repair Operations (MRO)
  • Structural Steel Welding

FAQ

The Tweco 11-40 contact tip is designed specifically for .040" (1.0mm) welding wire.

These tips fit Tweco #1, #2, #3, and #4 series guns, as well as Spray Master, Mini-MIG, and any MIG gun that accepts standard Tweco 11 Series consumables.

Yes, these are genuine Tweco OEM contact tips, ensuring the highest quality and adherence to manufacturer specifications.

The tip features a standard 1/4"-28 UNF thread, which fits standard Tweco gas diffusers like the 35-50 or 51 series.

You should replace the tip if the bore becomes oval-shaped (keyholing), if spatter blocks the opening, or if you experience erratic arc and wire feeding issues.

While you can use standard copper tips for aluminum, it is often recommended to use tips specifically designed for aluminum (often marked with an 'A') due to thermal expansion, but for general use, the correct size copper tip will function.

The 11 series is the standard duty tip with a smaller outer diameter, while the 14 series is a heavy-duty tip with a larger outer diameter and more mass for higher heat applications.