44-3545-15 - Tweco Style 44 Series MIG Liner .035-.045 15ft

Heavy-Duty 44 Series MIG Gun Conduit

The Tweco Style 44-3545-15 Liner is an essential replacement part for welders demanding consistent performance from their MIG equipment. This 15-foot steel liner is part of the widely used 44 Series, designed to accommodate solid and flux-cored wires with diameters of .035" to .045". Whether you are welding mild steel in a production line or performing repairs in the field, the integrity of your liner dictates the stability of your arc. This product offers a high-quality, economical alternative to OEM parts, meeting or exceeding the specifications for fit and wire feed smoothness.

Constructed from wound steel monocoil, this liner provides the necessary flexibility to navigate the cable assembly while maintaining enough rigidity to prevent collapsing or kinking under normal use. It is specifically sized for 15-foot cable lengths but can be easily trimmed for shorter custom setups if required. The liner features the correct O-ring and brass stop dimensions to seat securely into Tweco No. 3 and No. 4 adapters, as well as compatible Lincoln Magnum assemblies. It is also fully compatible with the Tweco Spray Master and Eliminator series guns.

Wire feeding issues are often misdiagnosed as welder setting problems when the culprit is actually a dirty or damaged liner. Over time, copper dust from the wire and shop grime accumulate inside the conduit, increasing friction. Replacing your liner with this 44-3545-15 unit is a quick, low-cost maintenance step that can dramatically improve weld quality. Keep a spare in your toolbox to prevent downtime. This liner is not recommended for aluminum wire; for aluminum applications, please search for our polymer or Teflon liners.

Specifications

• Part Number: 44-3545-15 (Generic/Style)
• Length: 15 Feet (approx. 4.5 meters)
• Wire Capacity: .035" - .045"
• Material: Steel Wound Conduit