Multiquip EM16414 Needle Valve St30, 60, 80

The Multiquip EM16414 Needle Valve St30, 60, 80 is a genuine OEM component designed for the DAW500SA4 diesel arc welder. Sourced directly from Multiquip, this needle valve is built to the same specification as the original part, ensuring consistent fuel metering and carburetor performance. This is a direct OEM replacement that confirms accurate fitment for DAW500SA4 series machines.

Key Features

• Genuine OEM Fuel Metering Precision — Manufactured to exact tolerances for accurate needle-to-seat seating, maintaining consistent fuel flow control within the carburetor.
• Direct OEM Replacement — Matches the original EM16414 specification for straightforward installation with no improvisation or adaptation at the carburetor assembly.
• DAW500SA4 Welder Compatibility — Confirmed fitment for the Multiquip DAW500SA4 diesel arc welder series, giving you confidence you are ordering the correct component.
• Restored Engine Fuel Control — A worn or damaged needle valve causes rough running, hard starting, and inconsistent engine speed; replacing with EM16414 restores stable fuel delivery and smooth engine operation.
• Fuel System Integrity — Correct needle valve seating prevents fuel leaks and ensures the carburetor operates within its designed fuel-to-air ratio, which is critical on a welder where engine consistency directly affects arc output.

The needle valve is a precision component inside the carburetor that regulates the flow of fuel into the float bowl. It works in tandem with the float to open and close the fuel inlet, maintaining the correct fuel level at all times. When the needle valve wears, develops a groove, or fails to seat properly, the float bowl can overflow or starve of fuel — leading to rich running, fuel leaks, hard starting, or an engine that surges and hunts under load.

For equipment support or to confirm this part is correct for your machine, contact the DHS Equipment team directly.

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.