15401104 - Tweco 54A-16 Standard Gas Diffuser for No. 3 & 4 MIG Guns (5-Pack)

Reliable Gas Coverage with Tweco 54A-16 Diffusers

Keep your MIG torch performing at its peak with the genuine Tweco 54A-16 Gas Diffuser. As the heart of your gun's front-end consumables, the gas diffuser plays a dual role: it secures the contact tip in place and ensures the smooth, laminar flow of shielding gas over the weld puddle. This 5-pack of standard diffusers is a must-have for welders using the industry-standard Tweco No. 3 or No. 4 MIG guns, offering a perfect fit and factory-spec performance.

Constructed from durable brass, the 54A-16 is built to withstand the high thermal stresses of industrial welding environments. It features a 3/8"-24 UNF thread for attachment to the conductor tube and provides a solid mounting point for 14 Series contact tips. The design supports slip-on nozzles, making it incredibly easy to clean spatter or replace the nozzle without needing extra tools. Whether you are fabricating structural steel or performing general repairs, a clean and functional gas diffuser is key to avoiding weld defects like porosity.

Don't let a clogged or damaged diffuser compromise your weld quality. Swapping out worn front-end parts is one of the simplest ways to improve arc stability and gas coverage. With this 5-pack, you ensure you always have a spare on hand to minimize downtime and keep your production line moving.

Features & Benefits

• Optimal Gas Flow: Precision ports ensure even shielding gas distribution.
• Durable Build: Solid brass construction resists deformation and heat.
• Easy Maintenance: Designed for quick tip changes and slip-on nozzles.
• Standard Fit: Direct replacement for part number 54A-16 (Stock 1540-1104).