Miller

Miller 179851 Welding Machine Pointer Knob

Name: Miller 179851 Welding Machine Pointer Knob
Brand: Miller
SKU: 179851

Restore precise voltage and amperage control on your Miller welder with this genuine OEM pointer knob replacement.

$47.99*

✓ In Stock on Amazon.com

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Miller 179851 Welding Machine Pointer Knob is a genuine OEM replacement component designed for use on compatible Miller Electric welding machines. It features a push-on mounting design with an integrated spring that grips onto a 0.250-inch diameter control shaft, providing secure attachment without requiring tools or set screws. The pointer-style knob measures 1.670 inches in diameter, giving you a clear visual reference when adjusting voltage, amperage, or other dial-controlled settings on your welder.

Weighing just 0.03 pounds, this knob is built for manual operation and maintains the same feel and responsiveness as the original factory-installed control. If your existing knob has cracked, lost its pointer marking, or no longer grips the shaft reliably, this direct replacement restores precise, repeatable adjustments. As with any OEM part, it is advisable to confirm part number 179851 against your specific Miller welder's parts diagram to ensure compatibility before purchasing.

Key Features

Sold on Amazon

Specifications

Brand

Miller Electric

Part Number

179851

Knob Diameter

1.670 inches

Bore Diameter

0.250 inches

Operation Mode

Manual (push-on with spring)

Weight

0.03 pounds

Dimensions

6 x 1 x 1 inches

Package Quantity

Pros & Cons

👍 Pros

Genuine Miller Electric OEM part ensures correct fit and function on compatible welders.
Push-on design with integrated spring allows for quick, tool-free installation.
Lightweight at just 0.03 pounds so it does not affect dial feel or responsiveness.
Pointer style helps you read and repeat precise control settings on the dial.

👎 Cons

Limited product information makes it difficult to confirm compatibility without checking your welder's parts manual.
Only fits shafts with a 0.250-inch bore diameter, so it will not work on differently sized control shafts.
Sold as a single knob, so replacing multiple worn knobs requires ordering more than one.

Frequently Asked Questions

What Miller welding machines is this knob compatible with?

The 179851 is a genuine Miller Electric part. Check your welder's parts list or manual for part number 179851 to confirm compatibility with your specific machine.

How does this knob attach to the shaft?

It uses a push-on design with an integrated spring that secures the knob onto a 0.250-inch diameter shaft without tools.

What is the diameter of the knob?

The knob has a diameter of 1.670 inches, with a pointer indicator for reading dial settings accurately.

Is this an OEM Miller part or aftermarket?

This is a genuine Miller Electric OEM replacement part, manufactured to Miller's original specifications.