Tag: Gun Liners

Lincoln Electric KP35-40-15, .023″-.035″ Liner, 15 ft., Steel: Product Breakdown

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The Lincoln Electric KP35-40-15 is a 15 ft. steel gun liner listed for .023"-.035" wire and described as compatible with Magnum PRO 100L and 175L welding guns. For maintenance teams and buyers, the important question is not just whether the liner exists, but whether it matches the gun, wire size range, and wire-feed condition in the field. A liner is a wear part. If it is the wrong type, wrong length, or installed poorly, the result is feed inconsistency, burnback risk, and avoidable downtime.

Key Takeaways

• This is a steel liner for MIG gun wire feeding support.
• The listed wire size range is .023"-.035".
• Listed length is 15 ft.
• Compatibility is stated for Magnum PRO 100L and 175L welding guns, but final fit should still be verified against the gun assembly and consumable setup.
• Use it as a replacement wear part, not as a cure for unrelated feed problems.

What this liner is for

Gun liners guide the wire from the feeder to the contact tip. Over time, liners collect wear, debris, and friction points that can affect wire travel. In practical terms, the liner matters when wire feed becomes erratic, the arc stutters, or the drive rolls appear to be working harder than normal. A new liner can restore feed consistency if the root issue is liner wear or contamination.

For this product, the available listing information indicates a steel liner. If your application involves frequent liner changes due to abrasive wire conditions, confirm whether steel is the intended material for your setup. The listing does not provide enough detail to state more than that. Unknown (Verify).

Check, inspect, verify before ordering

Use these steps before you place the part into inventory or onto a job ticket:

1. Check the gun model. Verify whether the gun is Magnum PRO 100L or 175L, as listed with this liner.
2. Inspect the wire size range. Confirm your process uses .023" through .035" wire. If the wire is outside that range, stop and verify a different liner is needed.
3. Verify liner length. The listing says 15 ft. Match that to the gun lead length and replacement part requirement.
4. Inspect the current feed symptoms. If the issue is actually drive roll wear, contact tip damage, liner contamination, or a kinked gun cable, a new liner alone will not correct it.
5. Verify end fittings and installation path. The source details provided do not define every connector or end condition. Unknown (Verify).

Troubleshooting support: when a liner is the likely problem

Use the following checks to separate liner-related problems from feeder or gun problems.

Symptom: wire feed surging or dragging

• Check whether the wire path has been recently cleaned.
• Inspect the liner for debris, kinks, or signs of wear.
• Verify drive roll pressure is not compensating for a restricted liner.

Symptom: intermittent burnback or inconsistent arc starts

• Check the contact tip and end of the liner for mismatch or wear.
• Inspect for wire shavings or contamination at the feeder entry.
• Verify the wire size matches the liner range.

Symptom: new liner does not solve feed issues

• Check the liner installation path for bends or compression.
• Inspect drive rolls, inlet guides, and the gun cable routing.
• Verify the problem is not in the spool hub tension or wire condition.

Product and parts section

The listed product is the Lincoln Electric KP35-40-15, .023"-.035" Liner, 15 ft., Steel. The source listing identifies it as a Lincoln Electric Magnum PRO gun liner compatible with Magnum PRO 100L and 175L welding guns. Treat that compatibility note as the starting point for purchasing, not the end of verification. Match the liner to the exact gun model, lead length, and wire range used in your shop.

If you are building a support-parts stock list, this kind of liner belongs with other routine wear items such as contact tips, nozzles, and drive roll support components. Keep that list tied to actual machine models and wire programs, not generic assumptions.

How to use support resources

When a support part needs verification against a specific gun or process, use the appropriate WSP lookup tools and product pages available to your team. If a filler metal or wire selection question exists, use the WSP filler metal finder pages as a selection starting point only. Those pages help narrow the field, but they do not guarantee procedure approval, code compliance, or weld procedure qualification.

No WSP lookup URL or filler metal finder URL was provided for this topic, so none is linked here.

Safety notes

• De-energize equipment before changing liners or handling internal gun parts.
• Wear gloves when cutting, trimming, or inserting liners; liner wire ends can be sharp.
• Do not force a liner through a bent cable path.
• After installation, test feed with the gun pointed in a safe direction and keep clear of the contact tip.
• If feed problems persist after liner replacement, stop and inspect the full wire path instead of forcing adjustments.

FAQ

Q: Is this liner for all Lincoln MIG guns?
A: No. The listing only identifies compatibility with Magnum PRO 100L and 175L welding guns. Verify the exact gun model before ordering.

Q: What wire sizes does this liner support?
A: The listing states .023"-.035". If your application uses another wire diameter, verify a different liner.

Q: Will a new liner fix every wire-feed problem?
A: No. A liner can correct wear or contamination issues, but drive rolls, contact tips, cable routing, and spool tension must also be checked.

Q: Is the liner material confirmed beyond the listing?
A: The source listing identifies it as steel. Any deeper material performance claims are Unknown (Verify).

Sources Checked

• ArcWeld product listing: Lincoln Electric KP35-40-15, .023"-.035" Liner, 15 ft., Steel
• Provided topic data for product title, short description, and compatibility note

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