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43115X - 43115X Aluminum MIG Liner for Bernard Style Guns, 15ft, .035-3/64 Wire

Packaging: 1 per each
$51.04/ea $38.14/1 per each only $38.14/eaSave 25%

In stock

OVERVIEW

High-Performance Aluminum Wire Feeding Solution

The GEN43115X is a premium aftermarket replacement liner designed to meet or exceed the specifications of the Bernard 43115X. Engineered specifically for the challenges of feeding soft aluminum welding wire, this liner is constructed from high-durability polymer materials (often referred to as Teflon in the industry) which provide a significantly lower coefficient of friction compared to standard steel liners. This reduction in friction is critical when pushing soft aluminum alloys like 4043 or 5356, as it prevents the wire from buckling, shaving, or binding inside the cable assembly.

This liner features a 15-foot length, making it suitable for standard length MIG gun cables used in industrial fabrication environments. It is sized to accommodate wire diameters ranging from 0.035 inches (0.9 mm) up to 3/64 inches (1.2 mm), covering the most common sizes used in aluminum MIG welding. The liner is compatible with Bernard Q-Gun, S-Gun, and T-Gun series platforms rated up to 400 Amps. Proper installation of a polymer liner is vital for maintaining the integrity of the gas shielding and ensuring smooth wire delivery to the contact tip.

Industrial maintenance teams and welding engineers choose this replacement part for its reliability and cost-effectiveness. By maintaining a smooth feed path, the GEN43115X helps reduce the frequency of "birdnesting" at the drive rolls and ensures consistent arc starts and weld bead appearance. It is an essential consumable for any shop transitioning to or maintaining aluminum welding operations using Bernard-style equipment.

Additional Information
packaging-description:1 per each
Item:Liner
Brand:Bernard Style
----- new values below ----
Material:Polymer / Teflon
Compatible Gun Series:Bernard Q-Gun, Bernard S-Gun, Bernard T-Gun
Color Code:Yellow (typically associated with this size)
Brand:Bernard Style
Item:Liner
Wire Type:Aluminum
Amps:400amp
Length:15 ft
Wire Size:0.035, 3/64
Packaging Description:1 per each

INCLUDED

  • 1 x 43115X Polymer Liner (15 ft)

APPLICATIONS

  • Aluminum MIG Welding
  • Automotive Fabrication
  • Marine Welding and Repair
  • Sign Manufacturing
  • General Aluminum Fabrication

FAQ

This liner is designed for wire diameters from 0.035" to 3/64" (approx 0.9mm to 1.2mm).

It is not recommended. Steel wire is abrasive and will quickly cut through the soft polymer material of this liner, leading to rapid failure. Use a steel wound liner for steel wire.

Yes, this liner is a direct replacement for the Bernard 43115X and fits Q-Gun, S-Gun, and T-Gun series MIG guns.

Install the liner into the gun and seat it fully. At the front end, follow the gun manufacturer's instructions for stick-out length. Use a sharp knife or liner cutter to make a clean, straight cut without crushing the tube.

Aluminum wire is soft and prone to buckling. Steel liners create too much friction and can shave the wire, causing clogging and birdnesting. Polymer liners provide a low-friction path.

This liner is rated for use in MIG guns up to 400 Amps.

Some polymer liners include a brass neck jumper for the hot front end, but check the specific package contents. This part number typically refers to the liner conduit itself.

The liner is 15 feet long, suitable for 15-foot MIG guns, and can be trimmed for shorter guns.