

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The PRO-SOURCE 4392 is a self-insulated gas nozzle designed for MIG welding applications. It mounts at the tip of a MIG gun to direct shielding gas flow over the weld puddle, protecting it from atmospheric contamination during the welding process. Rated for use with wire outside diameters from 0.030 inches up to 0.5 inches, this nozzle suits a wide range of wire gauges commonly used in production and maintenance welding. Measuring 2.64 inches in length and 0.88 inches in width and height, it is a compact, direct-fit replacement for worn or damaged OEM nozzles. Installation requires no special tooling and is performed by welding technicians during routine torch maintenance.
This nozzle is suited for use in light industrial, fabrication shop, and maintenance welding environments where MIG guns require periodic consumable replacement. The self-insulated design reduces the risk of arc-out between the nozzle body and the contact tip, which is a common failure point in high-spatter applications. It is compatible with MIG welding setups where shielding gas coverage and wire feed continuity are critical to weld quality.
Designed as an OEM-style replacement gas nozzle for standard MIG welding guns accepting self-insulated nozzle consumables with wire diameters up to 0.5 inches.
Installation is performed by welding technicians during scheduled torch consumable maintenance. Always power down the welding machine and ensure the gun trigger is inactive before removing or installing nozzle consumables. Thread or press the nozzle onto the gun neck according to the torch manufacturer's instructions, and inspect the contact tip and liner condition while the nozzle is removed.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!