198087 - Miller 1K Linear Potentiometer with Friction Tabs

Restore Precision to Your Miller Welder

The Miller 198087 Potentiometer is a critical replacement component designed to restore the accurate control functions of your Miller welding equipment. Over time, potentiometers—commonly known as pots or control knobs—can wear out due to frequent adjustment, dust ingress, or mechanical stress. A failing potentiometer often results in erratic wire feed speeds, unstable voltage settings, or "dead spots" where the machine fails to respond to adjustments. This genuine OEM part ensures that your machine behaves exactly as the manufacturer intended.

Rated at 1K Ohms with a Linear taper, this potentiometer provides a consistent rate of change across the entire turn of the knob, which is essential for fine-tuning welding parameters. The "Linear" designation means that the resistance changes at a constant rate, allowing for predictable adjustments whether you are setting low or high output levels. It features a standard slotted shaft, making it compatible with existing knobs on supported Miller units.

One of the key features of this specific model is the inclusion of friction tabs. These tabs are designed to lock the body of the potentiometer in place against the machine's panel, preventing the entire unit from spinning when the knob is turned to its limits. This ensures long-term durability and prevents internal wiring from becoming twisted or damaged. Trust Josef Gas for authentic Miller Electric repair parts to keep your shop running smoothly.