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39V80 - ESAB ST-21M Conduit Assembly for 3/32 Wire

Packaging: pack of 1
$459.53/EA $275.32/pack of 1 only $275.32/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

Keep Your ST-21M Running Smoothly

If you are running an ESAB ST-21M torch, you know that feeding heavy 3/32" wire requires a liner that can take a beating. The ESAB 39V80 Conduit Assembly is the factory-original replacement you need to keep your operation moving. Over time, conduits get clogged with dirt, metal shavings, and lubricant residue, or they simply wear out from the constant friction of the wire. A worn conduit is the number one cause of erratic feeding, burn-backs, and frustrating downtime.

This conduit is designed specifically for the heavy-duty demands of mechanized welding. It provides a sturdy, low-friction tunnel for your 3/32" wire, ensuring it glides smoothly from the feeder to the weld pool. Whether you are welding thick structural steel or heavy aluminum sections, having a fresh conduit means your wire speed stays constant and your arc stays stable. Don't let a cheap or worn-out liner ruin a perfect weld pass.

Installation is straightforward, designed to fit directly into the ST-21M assembly without modification. The "4 X H" designation ensures you have the right length and durability for standard mechanized setups. By swapping out your old conduit with a genuine ESAB 39V80, you restore your torch's performance to factory standards, saving you time on troubleshooting and money on wasted consumables.

Why Choose Genuine ESAB Parts?

  • Perfect Fit: No guessing or trimming required.
  • Longer Life: Materials selected to resist wear from heavy wire.
  • Better Welds: Consistent feeding equals consistent penetration and bead shape.
Additional Information
Brand:ESAB
Product Type:Conduit Assembly, MIG Liner
Compatible Torch:ST-21M
Wire Diameter:3/32"
Torch Type:Mechanized MIG
Length:4 ft
Packaging Description:pack of 1

INCLUDED

  • 1 x ESAB 39V80 Conduit Assembly
  • Installation Instructions

APPLICATIONS

  • Mechanized MIG welding operations
  • Heavy fabrication using 3/32" wire
  • Structural steel manufacturing
  • Automated welding cells using ST-21M torches

FAQ

The ESAB 39V80 is designed specifically for the ST-21M Mechanized MIG Torch.

This conduit is sized for 3/32-inch (2.4 mm) welding wire.

Yes, this is a genuine ESAB OEM replacement part, ensuring correct fit and performance.

The conduit should be replaced whenever you notice increased resistance in wire feeding, erratic arc issues, or if the wire appears to be dragging. In high-production environments, it is often changed during scheduled maintenance.

It typically refers to the length and duty rating, indicating a 4-foot heavy-duty assembly suitable for the standard configuration of the ST-21M.

While it is physically possible to pass smaller wire through, it is not recommended. Using a liner significantly larger than the wire can cause the wire to snake or buckle inside, leading to poor feeding. You should use the correct liner size for your wire.

Yes, as a conduit assembly, it typically includes the liner and the necessary outer protection or fittings required for installation into the torch lead.

If your burn-back is caused by erratic feeding due to a dirty or kinked liner, replacing the conduit with the 39V80 will likely solve the problem.