Skip to Main Content
Canadian
Canadian owned and operated

996403 - ESAB ST-16 and ST-21 Torch End Fitting Connector

Packaging: pack of 1
$176.73/EA $106.57/pack of 1 only $106.57/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

Restore Your Torch Connection with the ESAB 996403

The ESAB 996403 End Fitting is the definitive replacement component for welders and maintenance technicians servicing ST-16 and ST-21 MIG guns. In the world of MIG welding, the integrity of the connection between the gun and the feeder is paramount. This end fitting acts as the anchor for the power cable and liner conduit, ensuring that current, shielding gas, and welding wire are delivered smoothly to the contact tip. When this component fails or wears out, it can lead to a host of welding problems, including unstable arcs, gas leakage, and wire feeding resistance.

Constructed from high-grade materials, this end fitting is designed to handle the electrical loads associated with the amperage ratings of the ST-16 and ST-21 torches. A compromised fitting can create a high-resistance point in the welding circuit, leading to dangerous overheating that can melt the gun liner or damage the wire feeder drive rolls. By proactively replacing the end fitting with this genuine ESAB part, you protect the rest of your welding investment and ensure consistent weld quality. The part is machined to precise standards, allowing for a tight seal and secure thread engagement, which is vital for preventing shielding gas loss and atmospheric contamination of the weld pool.

For fabrication shops that rely on the proven performance of ESAB's legacy torch lines, having the 996403 End Fitting on hand is a smart inventory decision. It allows for quick turnaround on repairs, minimizing downtime. Installation is straightforward for those familiar with MIG gun assembly, allowing you to get back to welding quickly. Don't compromise your weld quality with ill-fitting generic parts; trust the OEM specifications of the ESAB 996403 to keep your ST-series torches running at peak efficiency.

Technical Highlights:

  • Precision Machining: Ensures leak-free gas connections and efficient current transfer.
  • Legacy Support: specifically supports the ST-16 and ST-21 product lines.
  • Maintenance Essential: Solves common issues related to connection overheating and instability.
Additional Information
Brand:ESAB
Packaging Description:1-per-ea
Compatible Models:ST-16 MIG Gun, ST-21 MIG Gun
Part Type:End Fitting, Power Pin Component
Process:MIG (GMAW), Flux-Cored Arc Welding (FCAW)

INCLUDED

  • 1 x ESAB ST-16/21 End Fitting (996403)

APPLICATIONS

  • Repair and maintenance of ESAB ST-16 MIG guns
  • Repair and maintenance of ESAB ST-21 MIG guns
  • Industrial MIG welding (GMAW)
  • Flux-cored arc welding (FCAW) setups using ST-series torches
  • Heavy fabrication shops utilizing legacy ESAB/L-Tec equipment

FAQ

The ESAB 996403 end fitting is specifically designed for use with ESAB ST-16 and ST-21 series MIG guns.

Yes, this is a genuine ESAB OEM replacement part, ensuring perfect fit and performance for your equipment.

The end fitting connects the MIG gun cable assembly to the wire feeder, facilitating the transfer of welding current, shielding gas, and the welding wire.

This part is listed specifically for the ST-16 and ST-21 models. It is not guaranteed to fit other ESAB torch series such as the PSF or MXH lines without verification.

Over time, end fittings can wear out, threads can strip, or electrical contact surfaces can degrade, leading to overheating and poor weld performance. Replacement restores reliability.

Typically, the end fitting is the metal connector body. O-rings and liners are usually sold separately or as part of a different kit, unless specified otherwise.

The ST-16 and ST-21 are typically air-cooled MIG guns. This fitting is designed for the standard configuration of these torches.