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Miller 198855 5/8
Miller

Miller 198855 5/8" Tapered Copper Nozzle (2-Pack)

★★★★★5.0 (1 reviews)

Keep your XR-Aluma-Pro Lite MIG gun performing at its best with this 2-pack of genuine Miller 5/8" tapered copper nozzles.

$55.70*$56.62Save 1%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Miller 198855 Tapered Copper Nozzles are genuine replacement consumables designed specifically for the Miller XR-Aluma-Pro Lite MIG gun. Each nozzle features a 5/8-inch diameter orifice and a tapered profile that helps direct shielding gas flow accurately to the weld pool, promoting consistent gas coverage and cleaner welds. The copper construction is a key advantage — copper's high thermal conductivity allows the nozzle to dissipate heat efficiently during extended welding sessions, reducing the risk of overheating and helping to resist spatter adhesion that can degrade performance over time.

Sold in a convenient 2-pack, these nozzles provide a ready spare so you can swap out a worn or damaged nozzle without waiting for a new order. As an OEM part from Miller, they are manufactured to the exact dimensions and tolerances required by the XR-Aluma-Pro Lite gun, ensuring a secure fit and proper gas flow characteristics. Whether you're performing aluminum MIG welding or other applications supported by the Aluma-Pro Lite platform, these copper nozzles are a straightforward consumable replacement that helps maintain the weld quality and reliability your work demands.

Specifications

Brand
Miller
Model / Part Number
198855
Type
Tapered copper nozzle
Orifice Diameter
5/8"
Material
Copper
Compatibility
Miller XR-Aluma-Pro Lite MIG gun
Quantity
2-pack

Pros & Cons

👍 Pros

  • Genuine Miller replacement part ensures proper fit and reliable performance with the XR-Aluma-Pro Lite gun
  • Copper construction provides excellent heat dissipation and resists spatter adhesion better than lower-grade materials
  • Tapered design helps direct shielding gas flow precisely to the weld area for consistent coverage
  • Two-pack provides a spare nozzle for quick replacement, reducing downtime during projects

👎 Cons

  • Only compatible with the Miller XR-Aluma-Pro Lite MIG gun — will not fit other Miller guns or other brands
  • Two nozzles per pack may not be enough for high-volume shops that go through consumables quickly
  • Copper nozzles are more expensive than brass or chrome alternatives, increasing consumable costs over time
  • No anti-spatter coating, so the nozzles may require more frequent cleaning during heavy use

Frequently Asked Questions

This nozzle is specifically designed for the Miller XR-Aluma-Pro Lite MIG gun. Verify your gun model before purchasing to ensure proper fit.
Each nozzle has a 5/8-inch diameter orifice, which is the standard size for the XR-Aluma-Pro Lite gun and suitable for general-purpose MIG welding applications.
Copper offers excellent thermal conductivity and heat resistance, which helps the nozzle dissipate heat during welding and extends its service life compared to lower-grade materials.
This package includes two tapered copper nozzles, giving you a ready replacement on hand so you can minimize downtime when a nozzle wears out.
Replace the nozzle when you notice spatter buildup that cannot be cleaned, visible damage or deformation to the taper, or when your shielding gas coverage becomes inconsistent — all of which can affect weld quality.

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