11401219 - Tweco 14-45 Standard Contact Tip 0.045 Inch (25-Pack)

Genuine Tweco 14-45 Contact Tips for 0.045" Wire

Maximize the performance of your MIG welding setup with genuine Tweco 14-45 Contact Tips. Designed specifically for use with 0.045-inch (1.2mm) welding wire, these industry-standard consumables are engineered to deliver consistent electrical conductivity and superior arc stability. The 14 Series contact tip is one of the most widely used designs in the welding industry, known for its reliability in general fabrication, automotive repair, and industrial manufacturing applications.

Manufactured from high-grade copper alloy, Tweco 14-45 tips are built to withstand the intense heat of the welding arc while maintaining their structural integrity. The precision-drilled bore ensures a tight tolerance with the welding wire, which is critical for maintaining a stable arc and preventing micro-arcing inside the tip. Poor contact can lead to erratic feeding and burn-back, but Tweco's rigorous quality control ensures that every tip provides the smooth current transfer professional welders demand.

These contact tips feature a standard 1/4"-28 UNF thread, making them compatible with a vast array of MIG guns, including the Tweco Classic No. 2, No. 3, and No. 4 series, as well as the Spray Master series. They also fit many Lincoln Magnum and other Tweco-style guns that utilize the 14 Series consumable platform. With a length of 1.5 inches and an outer diameter of 0.375 inches, they fit perfectly into standard 52 and 54 series gas diffusers.

Whether you are welding mild steel, stainless steel, or aluminum, using the correct contact tip is essential for quality welds. The 1140-1219 SKU represents the standard duty version of this tip, ideal for most medium-to-heavy duty applications. Keep your production line moving and your welds clean by choosing genuine Tweco parts.