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The PRO-SOURCE 200-258 is a replacement gas nozzle designed for MIG welding applications. The nozzle directs shielding gas to the weld zone to protect the molten pool from atmospheric contamination during the welding process. It accommodates wire outside diameters from 0.023 inches up to 0.094 inches, making it compatible with a range of common MIG wire sizes. At 0.14 pounds, it is a lightweight component that welding technicians and maintenance professionals replace as part of routine gun maintenance. Proper gas coverage depends on nozzle condition, so this part is a standard consumable in any MIG welding operation.
This gas nozzle suits MIG welding guns used in light fabrication, maintenance and repair, and production welding environments. It is appropriate for both shop and field use wherever shielding gas delivery must be maintained. The wire diameter range of 0.023 to 0.094 inches covers flux-core and solid wire setups commonly found in automotive, structural, and general metal fabrication work. Welding equipment technicians and professional welders install this nozzle during scheduled gun servicing or following nozzle damage from spatter buildup.
Designed as an OEM-style replacement gas nozzle for MIG welding guns accepting wire in the 0.023 to 0.094 inch outside diameter range. Verify gun thread type and nozzle seat geometry against your existing equipment before installation.
Gas nozzles are installed and serviced by qualified welders or welding equipment technicians. Disconnect the welding machine from its power source and allow the gun to cool completely before removing the spent nozzle. Inspect the contact tip and diffuser for spatter buildup or damage at the same time, as nozzle replacement is typically performed alongside tip maintenance. Follow the gun manufacturer's service instructions for proper seating and sealing of the replacement nozzle.
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.
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