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Keep your welding rig in top fighting shape with the Tweco 870734 Control Knob. This is the authentic factory replacement part for the control dials found on the Thermal Arc and Tweco Fabricator family of 3-in-1 welders. Whether you are operating a Fabricator 181i, 211i, or the powerful 252i, this knob is the direct replacement for the voltage, amperage, and wire speed controls located on the front panel.
Welding machines are built to be tough, but the external controls are often the first to suffer damage during transport or in busy workshops. A lost or damaged knob isn't just a cosmetic issue; it is a functional hazard. Without a proper knob, adjusting your arc characteristics becomes a guessing game, often requiring pliers or makeshift tools that can damage the sensitive potentiometer shaft behind the panel. Installing the correct 870734 knob protects the internal electronics and restores the professional look and feel of your equipment.
The knob features a clear indicator line (on applicable versions) or ergonomic shape to help operators visualize their settings at a glance. Its robust plastic molding is resistant to cracking and provides the necessary friction for smooth rotation. As an OEM part under the ESAB/Tweco umbrella, you can trust this component to match the original specifications of your machine perfectly. It is an affordable and simple repair that extends the service life of your valuable welding power source.
| Additional Information |
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| Brand:Tweco |
| Packaging Description:1 Per Ea |
| Item:Control Knob |
| Compatible Models:Fabricator 181i, Fabricator 211i, Fabricator 252i, Thermal Arc 3-in-1 Machines |
| Part Type:Replacement Control Knob, Potentiometer Knob |
| Material:Industrial Plastic |
| Color:Black |
