• Bernard AccuLoc-S Diffuser for Miller MDX-250 MIG Gun Package of 2 by Miller Electric Mfg. - optimized for flawless wire-feed path and reduced burnbacks, ideal for Miller MDX-250 diffuser use.
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Miller Electric Mfg.

Miller MDX-250 Diffuser - Bernard AccuLoc-S MIG Gun Accessory, Pack of 2 for Flawless Wire Feeding

Miller MDX-250 Diffuser - Bernard AccuLoc-S MIG Gun Accessory, Pack of 2 for Flawless Wire Feeding

D-MA250M - PK OF 2

$36.36
Shipping: Free ground to lower 48 on qualifying orders.
Enhance your welding experience with the Miller MDX-250 diffuser, designed specifically for optimal performance with your Miller MDX-250 MIG gun. This high-quality diffuser is c...
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Automatic savings: 5% off $150+ · 7% off $300+ (applied at checkout — no code)
Typically ships within 1–2 business days. Shipping: Free ground to lower 48 on qualifying orders.
Ships from
Corydon, IN
Free ground
Lower 48 (qualifying)
Returns
Unused / original packaging

Fitment Help

Before ordering, confirm this part fits your equipment.

  • Check your equipment model number
  • Verify the specifications match your requirements
  • Review the product description for compatibility details

Not sure? Email us at sales@arcweldinc.com with the part number, your equipment model, and application—we'll confirm the correct part before you order.

Shipping & Returns

  • Ships from: Corydon, Indiana
  • Fulfillment: Lead time shown above (defaults to 1–2 business days unless noted)
  • Shipping: Free shipping on ground orders to lower 48 states (qualifying orders)
  • Pickup: Available at our Corydon location (usually ready in 2–4 days)
  • Returns: Accepted on unused items in original packaging

Discounts: 5% off $150+ and 7% off $300+ apply automatically at checkout (no code).

Ordered the wrong part? Contact us at sales@arcweldinc.com before opening—we'll help you exchange for the correct one.

Enhance your welding experience with the Miller MDX-250 diffuser, designed specifically for optimal performance with your Miller MDX-250 MIG gun. This high-quality diffuser is crafted to ensure a precise and reliable wire-feed path, minimizing common issues such as burnbacks, bird-nesting, and erratic arcs.

The Bernard AccuLoc-S Diffuser set contains two essential components, engineered for exceptional compatibility with both Miller MDX-250 MIG guns and Bernard BTB MIG guns. By using these diffusers, you can dramatically reduce your consumables inventory and the potential for replacement errors.

Here are some key features of the Miller MDX-250 diffuser:

  • Optimized Wire-Feeding: The contact tip aligns perfectly with the liner lock when the diffuser is tightened, ensuring a flawless wire-feed path.
  • Quick Replacement: The coarse thread design accelerates contact tip replacement, minimizing downtime during your welding projects.
  • Tapered Connection: Unique taper locks secure the contact tip to the diffuser and the diffuser to the neck, providing excellent electrical conductivity.
  • Cooling Tail: The diffuser features a cooling tail, which helps keep the contact tip cool by allowing shielding gas to circulate effectively.

Experience improved performance and reliability with the Bernard AccuLoc-S Diffuser package. With fewer parts yet more accuracy, this diffuser will enhance your welding efficiency significantly. Upgrade your setup today with the Miller MDX-250 diffuser and take your welding to the next level!

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