1840003 - Bernard 1840003 Cap Insulator (10-Pack)

Keep Your Bernard Torch Running Cool

Every welder knows the frustration of a sputtering arc or a nozzle that shorts out against the workpiece. Often, the culprit is a worn-out or missing insulator inside your MIG gun. The Bernard 1840003 Cap Insulator is the genuine replacement part you need to keep your Bernard Q-Gun, S-Gun, or T-Gun firing smoothly. This small but mighty ring sits between your gas diffuser and the nozzle, acting as a heat shield and an electrical barrier. When it's doing its job, you get a stable arc and a nozzle that doesn't become electrically live.

Over time, heat and spatter can crack or wear down your insulators, leading to poor gas coverage and erratic welding. That's why having a stash of spares is essential for any serious fabricator. This 10-pack ensures you have plenty of replacements on hand for your shop or truck. Whether you are pushing heavy wire in a structural steel shop or doing precision fabrication, swapping out a charred insulator is one of the cheapest and fastest ways to improve your gun's performance.

Don't let a cheap plastic part ruin your welds. These insulators are built tough to handle the heat of high-amperage welding. They fit perfectly with your standard Bernard consumables, meaning no struggling to get the nozzle seated correctly. Simply pop the old one off, slide the new 1840003 in place, and get back to laying beads. With ten in a pack, you can keep your entire team equipped and minimize downtime caused by front-end torch issues.