093551 - Miller 093551 Replacement Pointer Knob .750 OD x .126 ID

Miller 093551 Replacement Control Knob with Set Screw

Keep your welding rig dialing in perfect beads with the Miller 093551 Pointer Knob. This is an authentic replacement part manufactured by Miller Electric, designed to replace damaged, stripped, or missing control knobs on compatible welding machines. Precision control is the hallmark of professional welding, and having a reliable, secure knob on your potentiometers is essential for making those micro-adjustments that define the quality of the arc.

Exact Fit and Durable Construction

The Miller 093551 is not a generic "one-size-fits-all" solution. It is manufactured with a specific 0.126-inch inner diameter (ID) to mate perfectly with the control shafts of compatible Miller equipment. The 0.750-inch outer diameter offers excellent ergonomics, allowing for smooth rotation even when adjustments are needed mid-job. The knob is molded from robust industrial plastic capable of withstanding the rigors of daily shop use, including exposure to UV light, grease, and minor impacts.

Secure Installation

One of the most frustrating aspects of inferior replacement parts is the tendency for knobs to slip on the shaft, leading to inaccurate readings where the pointer doesn't match the actual output. The Miller 093551 eliminates this issue with a built-in set screw. Once tightened, the screw bites into the control shaft, locking the pointer in proper alignment relative to the faceplate scale. This ensures that when you point to a specific voltage or wire speed, the machine delivers exactly that.

Verify Your Fitment

Because Miller manufactures a wide range of equipment with varying component specifications, it is important to verify that this specific knob fits your model. The 0.126-inch shaft size is a critical dimension. We recommend consulting your welder's owner's manual or parts breakdown to confirm the part number 093551 is listed for your serial number. Investing in genuine OEM parts like this knob ensures your machine retains its resale value and operational reliability.