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144858 - Miller .023-.035 Teflon Liner 3-Pack for Aluminum Wire

Packaging: 3 PER EA
$88.46/EA $188.22/3 PER EA only $62.74/EASave 29%

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OVERVIEW

Genuine Miller Teflon Liners for Precision Aluminum Welding

The Miller 144858 Liner is a specialized consumable designed to facilitate the smooth feeding of soft welding wires, particularly aluminum. Manufactured from high-quality Teflon (PTFE), this liner significantly reduces friction within the MIG gun cable assembly. Unlike coiled steel liners which can shave or deform soft aluminum wire, the smooth interior surface of this Teflon liner ensures that the wire glides effortlessly from the feeder to the contact tip. This reduction in drag is critical for maintaining a stable arc and preventing common feeding issues such as bird-nesting at the drive rolls.

This product is supplied as a package of three liners, providing excellent value and ensuring that welding operators have immediate replacements available during critical production runs. The liner is sized to accommodate wire diameters from 0.023 inches (0.6 mm) to 0.035 inches (0.9 mm), covering the most common range for light to medium-duty aluminum fabrication. The specific length of 8.636 (unit specified by manufacturer) ensures compatibility with specific Miller MIG gun configurations, likely including Spoolmate series or specific push-pull systems where precise liner length is essential for operation.

Industrial maintenance and repair operations (MRO) rely on genuine OEM parts to maintain equipment warranty and performance standards. Using the Miller 144858 ensures that the dimensional tolerances match the gun's requirements perfectly. Improperly sized liners can lead to gas leakage, poor conductivity, or mechanical jams. By utilizing this genuine Miller part, users ensure the longevity of their welding equipment and the quality of their aluminum welds.

Key Technical Specifications:

  • Part Number: 144858
  • Material: Teflon (PTFE)
  • Wire Compatibility: .023" - .035" (0.6mm - 0.9mm)
  • Pack Quantity: 3 Liners
  • Application: Aluminum and soft alloy wire feeding
Additional Information
Brand:Miller
Item:Liner
Wire Size:0.023" - 0.035"
Packaging Description:pack of 3
Wire Type:Aluminum
Material:Polytetrafluoroethylene (Teflon)
Length:8.636
Compatible Wire Diameter:0.023 in, 0.030 in, 0.035 in

INCLUDED

  • 3 x Teflon Liners (.023-.035 Wire x 8.636)
  • Installation Instructions

APPLICATIONS

  • Aluminum MIG Welding
  • Automotive Body Repair
  • Marine Fabrication
  • Sign Manufacturing
  • Light Gauge Sheet Metal Work

FAQ

This liner is made of Teflon and is specifically designed for soft wires, primarily aluminum, ranging from .023 to .035 inches in diameter.

Aluminum wire is soft and can easily be shaved or deformed by the rough coils of a standard steel liner. Teflon provides a smooth, low-friction surface that prevents feeding issues like bird-nesting.

The Miller 144858 comes as a package of 3 liners.

Yes, this is a genuine Miller Electric replacement part, ensuring proper fit and performance with compatible Miller equipment.

While physically possible, it is not recommended. Steel wire is abrasive and will wear out the soft Teflon liner very quickly. Use steel liners for steel wire and Teflon liners for aluminum.

The liner comes at a specific length of 8.636. Depending on your specific gun model, minor trimming may be required during installation to ensure the correct stick-out at the diffuser.

Using a steel liner for aluminum often results in erratic feeding, wire shaving, clogged liners, and frequent bird-nesting at the drive rolls due to excessive friction.

This liner is rated for wire diameters from 0.023 inches to 0.035 inches.