Skip to Main Content
Canadian
Canadian owned and operated

197729 - Miller 197729 Teflon Head Tube Liner .023-.040 (2-Pack)

Packaging: 2 PER EA
$60.97/EA $85.86/2 PER EA only $42.93/EASave 30%

Usually ships within 3-5 business days

OVERVIEW

Smooth Aluminum Welding with Genuine Miller Parts

Frustrated by erratic wire feeding or constant bird-nesting when welding aluminum? The solution often lies in the condition of your gun's liner. The Miller 197729 Teflon Head Tube Liner is specifically designed to tackle the challenges of feeding soft wires. Unlike steel liners that can drag and deform soft aluminum, this Teflon liner provides a slick, low-friction pathway that allows the wire to glide smoothly right up to the contact tip. This means fewer jams, less downtime, and cleaner, more consistent welds for your projects.

This 2-pack of liners is a must-have for owners of Miller Spoolmatic® 15A or 30A spool guns and XR™-Pistol push-pull guns. These guns are workhorses in the industry, but even the best equipment needs proper maintenance to perform at its peak. The 7.875-inch length is factory-measured to fit perfectly inside the head tube of your gun, eliminating the guesswork of cutting bulk liner material. It supports wire sizes from .023 to .040 inches, making it versatile for various sheet metal and fabrication jobs.

Don't let a worn-out $10 part ruin a day's worth of work. Keeping a fresh head tube liner installed ensures that your expensive spool gun operates exactly as Miller intended. Whether you are in a professional fabrication shop or a serious home garage, using genuine Miller consumables like the 197729 liner guarantees fitment and reliability. Stock up with this convenient twin pack and keep your aluminum welding operations running smoothly.

Additional Information
Brand:Miller
Item:Liner
Wire Type:Aluminum
Fits Which Model:XR, XRM, Spoolmatic 15, 30A
Packaging Description:pack of 2
Wire Size:0.023" - 0.040"
Length:7.875
Material:Polytetrafluoroethylene (Teflon)
Compatible Guns:Spoolmatic 15A, Spoolmatic 30A, XR-Pistol
Application:Aluminum Welding, Soft Wire Feeding

INCLUDED

  • (2) Teflon Head Tube Liners (7.875-inch length)

APPLICATIONS

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

FAQ

This liner fits Miller Spoolmatic® 15A and 30A spool guns, as well as the XR™-Pistol push-pull guns.

The liner is 7.875 inches long.

It is designed for wire diameters from .023 inches to .040 inches.

Teflon is used because it has very low friction, which is necessary for feeding soft wires like aluminum without buckling or bird-nesting.

This product is sold as a package of 2 liners.

While physically possible, Teflon liners are specifically optimized for soft wires like aluminum. Steel wires are typically used with steel coil liners, though Teflon can be used if the wire is clean and burr-free.

This is a head tube liner (also known as a jump liner) that fits in the neck of the gun, not the main cable conduit.

No, it comes pre-cut to the correct length of 7.875 inches for the specified Miller guns.