135428 - Miller 135428 Spoolmatic Contact Tip .030-.041 (10-Pack)

Miller 135428 Spoolmatic Contact Tips (.030-.041 Wire)

Maximize the efficiency of your aluminum welding projects with the Miller 135428 Contact Tip, a premium replacement part designed for the legendary Spoolmatic and XR series MIG guns. These contact tips are engineered to accommodate wire sizes between .030" and .041", making them a versatile choice for fabricators who frequently switch between light and medium gauge wires. When precision and arc stability are non-negotiable, relying on genuine Miller parts ensures that your equipment operates exactly as the manufacturer intended.

The 135428 tip is characterized by its smooth, non-threaded exterior, designed to slide directly into the gas diffuser of compatible guns such as the Spoolmatic 15A, Spoolmatic 30A, and the XR Edge. This design is distinct from threaded tips and is specific to certain generations of Miller gun assemblies. The high-quality copper construction offers excellent thermal conductivity and resistance to heat buildup, which helps prevent the wire from fusing to the tip during long welds—a common frustration in aluminum MIG welding known as burnback.

Regularly replacing your contact tip is one of the simplest ways to troubleshoot erratic feeding or unstable arcs. As the bore of a tip wears out, it becomes oval-shaped, leading to poor electrical contact and wandering arcs. By keeping a fresh pack of Miller 135428 tips in your shop, you ensure that your Spoolmatic gun delivers the consistent current transfer required for X-ray quality welds. The .04" bore is optimized to allow the wire to pass freely while maintaining sufficient contact for electrical transfer.

This package contains 10 contact tips, providing excellent value for busy shops. Whether you are working on marine applications, automotive customization, or industrial manufacturing, these tips support the smooth delivery of filler metal that Miller's push-pull and spool gun systems are famous for. Don't let a worn consumable compromise your weld quality; stock up on the correct tips for your Spoolmatic 15A or 30A today.