264581 - Miller 146mm Neck Liner D4x7

Miller 264581 Wire Liner Overview

The Miller 264581 is a specialized replacement wire liner designed for specific Miller MIG gun configurations. With dimensions defined as D4 x 7 and a precise length of 146mm, this component typically serves as a neck liner or jump liner. In many MIG welding systems, particularly those with curved necks or robotic setups, a separate, shorter liner segment is utilized in the torch head to handle the mechanical stress of the bend and ensure the welding wire transitions smoothly from the main cable bundle to the contact tip.

Manufactured to Miller's exacting standards, this liner helps maintain the integrity of the wire feed path. A worn or kinked neck liner can cause significant friction, leading to erratic arc performance, wire shaving, or birdnesting at the feeder. By replacing this component at regular intervals or when feed issues arise, operators can ensure consistent electrical contact and arc stability. The "D4 x 7" specification likely refers to the inner and outer diameter metrics (4mm ID, 7mm OD), indicating its compatibility with specific wire sizes and torch head internal geometries.

This part is essential for maintenance professionals and welding engineers looking to keep their Miller equipment operating at peak efficiency. It is supplied as a single unit, ready for immediate installation into compatible torch assemblies. Proper installation of the 264581 liner ensures that the shielding gas and wire are delivered accurately to the weld pool, minimizing downtime associated with feeding failures.