Multiquip MQ999578 Contact Tip .045 Short Standard MT-400CCEHD

The Multiquip MQ999578 Contact Tip.045 Short Standard MT-400CCEHD is a genuine OEM contact tip designed for the MT400CCEHD. Sourced directly from Multiquip, this part meets the exact specifications required for proper welding performance on compatible equipment. Verify your model code before ordering to ensure a correct match for your MT400CCEHD unit.

Key Features

• Genuine OEM Contact Tip — Manufactured to Multiquip's exact bore diameter and thread spec for consistent, accurate wire feed and arc stability.
• .045 Wire Gauge Rating — Sized specifically for .045-inch welding wire, ensuring proper electrical contact and minimal wire drag during operation.
• Short Standard Profile — The short-body design suits the MT-400CCEHD torch configuration, fitting directly without adapter modifications.
• Compatible with MT400CCEHD — Confirmed OEM fitment for the MT400CCEHD welder, so you can order with confidence knowing this is the correct replacement tip.
• Sustained Arc Performance — A worn or damaged contact tip causes erratic arc behavior, spatter, and poor weld quality; replacing with a correct OEM tip restores clean, stable welding output.
• Electrical Safety Compliance — As a current-carrying consumable in a welding circuit, using the correct OEM-rated tip helps maintain safe, predictable electrical performance during operation.

A contact tip is a consumable copper component seated at the end of a MIG welding torch. It channels the welding wire through a precision-bored hole while simultaneously transferring electrical current to the wire, generating the arc needed to melt and fuse base metals. Because the tip is in constant contact with the moving wire and exposed to intense heat, it wears down over time — a degraded tip causes irregular arc starts, excessive spatter, and inconsistent weld beads. Replacing it with a correctly sized and threaded OEM tip like the Multiquip MQ999578 restores proper wire-to-tip contact and keeps the welding circuit operating as intended.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.