D-M250-25 - Miller AccuLock MDX Gas Diffuser for MDX-250 (25-Pack)

Keep Your MDX-250 Running Cool and Smooth

If you are running a Miller MDX-250 MIG gun, you know that the front-end consumables are the lifeline of your weld quality. The Miller AccuLock™ MDX Gas Diffuser is built to solve the headaches that usually slow you down—burnbacks, erratic arcs, and tips that weld themselves to the gun. This 25-pack bulk supply (D-M250-25) is perfect for shops that need to keep their welders working without waiting on parts.

Why upgrade your diffuser? It’s all about the fit and the flow. This diffuser features a special Tapered Connection that locks everything tight. When you screw in an AccuLock tip, it doesn't just sit there; it locks in for solid electrical contact. This means better arc starts and less sputtering. Plus, the design centers the tip perfectly with the liner. No more wire shaving or snagging as it enters the tip—just smooth, consistent feeding that lets you focus on the puddle, not the gun.

Heat is the enemy of any MIG gun, and this diffuser fights back. It uses a Cooling Tail feature where the shielding gas flows around the base of the contact tip inside the diffuser. This acts like a radiator, pulling heat away from the tip so it lasts longer. When it is finally time to swap a tip, the coarse threads make it a breeze. You won't be fighting with seized threads or stripping them out with pliers. A quick twist is all it takes.

This bulk pack is ideal for industrial settings, fabrication shops, and serious hobbyists who want to ensure they always have the right part on hand. Don't let a worn-out diffuser compromise your welds. Stick with genuine Miller AccuLock parts to get the performance your machine was built to deliver.