Tweco 1544-1141 Gas Diffuser 400A Mig 5 Pack

Product Description

The TWECO 1544-1141 is a standard-duty brass gas diffuser designed for MIG welding applications up to 400 amps. Machined from 360 brass alloy bar stock, this diffuser delivers consistent dimensional stability and reliable electrical conductivity across light to medium duty welding cycles. It measures 0.939 inches in overall length and features a 3/8 inch-16UNC-2A threaded connection with six 0.078 inch gas ports for even shielding gas distribution. The part number is roll-stamped on the external surface for fast identification in the field. Sold in a pack of 5.

This diffuser is intended for use with WC24 series nozzle assemblies on 400 amp Tweco MIG guns. It is also compatible with robotic and fixed automation MIG conductor tube setups, making it a fit for both manual welding operations and automated production environments. Typical installers include welding technicians and automation maintenance personnel servicing MIG welding cells in fabrication shops, manufacturing facilities, and job sites requiring consistent arc performance at higher amperages.

Key Features

• Machined from 360 brass alloy bar stock for consistent dimensional stability
• Six 0.078 inch gas ports provide even shielding gas distribution around the weld zone
• 3/8 inch-16UNC-2A thread for secure conductor tube connection
• Part number roll-stamped on exterior for quick identification
• Compatible with robotic and fixed automation MIG conductor tubes
• Sold as 5 per pack for efficient consumable stocking

Compatibility

Designed for use with WC24 series nozzle assemblies on 400 amp Tweco MIG guns, and compatible with robotic or fixed automation MIG conductor tubes.

Installation Notes

Installation and replacement should be performed by a qualified welding technician. Always power down the MIG gun and ensure the wire feeder is disabled before removing or installing diffuser components. Hand-tighten onto the conductor tube using the threaded connection and confirm seating before resuming welding operations. Inspect gas ports for spatter buildup regularly, as blocked ports reduce shielding gas coverage and weld quality.

Technical Specifications

• Overall Length: 0.939 inches
• Thread Size: 3/8 inch-16UNC-2A
• Gas Ports: Six at 0.078 inches each
• Maximum Amperage: 400 amps
• Material: 360 brass alloy bar stock
• Package Quantity: 5 per pack
• Weight: 0.03 pounds
• UPC: 608246038551

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1544-1141