14401105 - Tweco 44-3545-25 MIG Gun Liner .035-.045 25ft

Tweco 44-3545-25 MIG Gun Liner for .035-.045 Wire

Keep your MIG gun performing at its peak with the Tweco 44-3545-25 Conduit Liner. As any experienced welder knows, the liner is the backbone of the wire delivery system. A worn, kinked, or clogged liner is the number one cause of wire feeding problems, leading to downtime and frustration. This genuine Tweco replacement part (SKU 1440-1105) restores the smooth, consistent feed required for precision welding.

The 44-3545-25 is a "Standard" series conduit, wound from robust spring steel and finished with a zinc coating. This construction ensures the liner remains flexible enough to navigate the bends of the cable assembly while maintaining a rigid internal structure that prevents the wire from buckling. The liner is sized specifically for .035-inch to .045-inch wires, the most common diameters for general fabrication and structural work. Using the correct liner size is crucial; a liner that is too large can cause the wire to wander, while one that is too tight will cause excessive drag.

At 25 feet in length, this liner is designed for long-reach applications but is universally applicable to shorter guns by simply trimming the excess during installation. It is compatible with a wide array of Tweco MIG guns that utilize the 44 Series consumables, including the industry-standard Spray Master and Classic series. Whether you are repairing a gun in the shop or performing field maintenance, installing a fresh Tweco liner is the best way to ensure arc stability and weld quality.

Features & Benefits

• Smooth Feeding: Low-friction zinc plating ensures wire slides easily.
• Universal Fit: 25ft length accommodates long guns and can be cut for standard 10ft, 12ft, or 15ft guns.
• Durability: Spring steel construction resists kinking and crushing.
• Compatibility: Fits Tweco #3, #4, #5, and Spray Master guns.