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Bernard L4A-25 welding liner .045 to .062 inch

Bernard

Bernard L4A-25 Liner .045-.062 in

SKU CH-3FBT-YJC2Y

Welding gun liner sized .045–.062 in, compatible with BTB, Clean Air, Dura-Flux, FILTAIR, Q-Gun, S-Gun and W-Gun series

  • TypeWelding Parts & Supplies
  • Fits wire diameters .045 to .062 in
  • Works with BTB, Clean Air, Dura-Flux, FILTAIR, Q-Gun, S-Gun, W-Gun series
  • 25 ft length reduces changeover frequency
  • Bernard brand ensures OEM-quality construction
  • New condition guarantees full performance out of the box

Bernard L4A-25 Liner Specifications

The Bernard L4A-25 is a welding liner designed for wire diameters of .045 to .062 in. It functions as a consumable conduit that guides the welding wire from the feeder through the gun cable to the contact tip. This part is intended for welders maintaining or repairing compatible MIG gun assemblies.

Compatibility and Use Cases

This liner fits Bernard Series BTB, Clean Air, Dura-Flux, FILTAIR, Q-Gun, S-Gun, and W-Gun models. It suits operators using those specific gun series with the stated wire size range. Welders using different gun brands, incompatible Bernard series, or wire diameters outside .045-.062 in should look at other liners.

Critical Wire Diameter Range

The decisive specification is the .045-.062 in wire diameter compatibility. This range determines whether the liner will feed your specific welding wire without binding or excessive play. Verify your wire spool marking matches this range before purchase.

Highlights

  • Fits wire diameters .045 to .062 in
  • Works with BTB, Clean Air, Dura-Flux, FILTAIR, Q-Gun, S-Gun, W-Gun series
  • 25 ft length reduces changeover frequency
  • Bernard brand ensures OEM-quality construction
  • New condition guarantees full performance out of the box

Specifications

TypeWelding Parts & Supplies
BrandBERNARD

Questions about this item

What wire diameters can I run through the Bernard L4A-25 liner?

The liner is compatible with wire sizes from .045 in to .062 in.

Will this liner fit the Q-Gun I already use?

Yes, it is compatible with Series BTB, Clean Air, Dura-Flux, FILTAIR, Q-Gun, S-Gun and W-Gun.

How do I confirm the liner is feeding correctly after installation?

Verify that the wire advances smoothly through the drive rolls without binding or slipping.

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