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The LINCOLN ELECTRIC KP2746-1-B25 is a threaded brass gas diffuser designed for MIG welding applications. It mounts inside the MIG gun nozzle assembly and distributes shielding gas evenly around the weld puddle, helping maintain consistent arc stability and weld quality. Rated at 350 amps maximum, this diffuser is built to handle demanding continuous-duty welding environments. The brass construction provides good thermal and electrical conductivity while resisting corrosion from heat and spatter exposure. Welding technicians and fabricators install this component as part of routine consumable maintenance on compatible MIG gun systems.
This gas diffuser is intended for use with the Magnum PRO Welding Gun platform. It is a standard consumable replacement part that requires periodic swapping as part of MIG gun tip and nozzle maintenance. Typical install scenarios include production welding, maintenance and repair fabrication, and field welding operations where consistent shielding gas coverage is critical to weld integrity. The threaded connection style ensures a secure, repeatable fit during rapid consumable changeovers.
Designed for use with the Lincoln Electric Magnum PRO Welding Gun. No additional compatible model numbers or system families were specified in the product data.
Gas diffusers are installed and serviced by welding technicians as part of routine MIG gun consumable maintenance. Always power down the welder and disconnect the welding gun from the wire feeder before servicing the nozzle, contact tip, or diffuser assembly. Use the appropriate wrench or consumable tool to avoid cross-threading or overtightening the threaded connection. Inspect the diffuser for spatter buildup, erosion, or clogged gas ports each time contact tips or nozzles are replaced.
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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