Tweco
Tweco Conduit Liner Series 42 Max 0.035 Wire 14201140
Conduit liner for Series 42 welding guns accepting up to .035 wire, compatible with Classic No. 1, Classic No. 2, Spray Master 250 and WeldSkill WM 250 models
- TypeWelding Parts & Supplies
- Compatible with Series Classic No. 1 and No. 2 guns
- Fits Spray Master 250 and WeldSkill WM 250 models
- Handles wire up to 0.035 inch diameter
- Series 42 design for reliable wire feeding
- Part number 14201140 for exact replacement identification
Tweco Series 42 Conduit Liner 14201140
This Tweco conduit liner is a replacement consumable for MIG welding guns. It fits Series Classic No. 1, Classic No. 2, Spray Master 250 and WeldSkill WM 250 models. The liner supports a maximum wire diameter of .035 inches. It is supplied new as part number 14201140.
Suitable for welders maintaining compatible Tweco
This part suits operators who need a direct-fit liner for the gun series listed above. It is not for users running wire larger than .035 inches. It will not fit gun models outside the Classic, Spray Master or WeldSkill families. Buyers needing a different length or diameter should look elsewhere.
Maximum wire size .035 inches
The critical specification is the .035 inch maximum wire capacity. If your welding wire exceeds this diameter, the liner will not feed it correctly. Confirm your gun model and wire size before ordering. The part number 14201140 identifies this specific Series 42 liner.
Highlights
- Compatible with Series Classic No. 1 and No. 2 guns
- Fits Spray Master 250 and WeldSkill WM 250 models
- Handles wire up to 0.035 inch diameter
- Series 42 design for reliable wire feeding
- Part number 14201140 for exact replacement identification
Specifications
| Brand | TWECO |
|---|---|
| Type | Welding Parts & Supplies |
Questions about this item
How do I install the 14201140 liner in my Series 42 gun and what step is often missed?
Remove the old liner, feed the new one through the conduit until it seats at the contact tip, then trim the excess at the drive-roll end; the step often missed is trimming flush so the wire feeds without catching.
What maintenance or replacement will the 0.035 liner need over time?
Check for metal shavings, kinks or restricted wire feed after each spool; replace the liner when wire drag noticeably increases or feed becomes erratic.
What limit appears first when running the Series 42 liner continuously at 250 amp levels?
Heat buildup in the conduit is the first limit; sustained 250 A use softens the liner material, increasing wire drag and requiring more frequent replacement.
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