Multiquip 6722635003 Rotary Solenoid DLW400ES ESA

The Multiquip 6722635003 Rotary Solenoid DLW400ES ESA is a genuine OEM component designed for DLW400ES, DLW400ESA, and DLW400ESA1 series diesel light welder units. As a direct Multiquip OEM part, 6722635003 is manufactured to the same specification as the original, ensuring correct fitment and dependable electrical operation in the field. Sourced through DHS Equipment, this part is the right call when your solenoid shows signs of sluggish response, failure to engage, or intermittent shutoff behavior.

Key Features

• Genuine OEM Electrical Spec — Manufactured to the original rotational torque and voltage rating required by the DLW400ES series fuel control circuit, not a generic substitute.
• Direct Swap Installation — Matches the original mounting footprint and connector interface on DLW400ES, DLW400ESA, and DLW400ESA1 units, so installation follows the factory service procedure without adaptation.
• Confirmed Fitment — Verified for DLW400ES, DLW400ESA, and DLW400ESA1 Multiquip diesel light welder models.
• Consistent Fuel Shutoff Control — A properly functioning rotary solenoid delivers crisp, repeatable engagement and disengagement of the fuel system, keeping engine start and stop cycles smooth and predictable.
• Fuel System Safety Relevance — The rotary solenoid is a critical component in the engine shutoff circuit; a failed unit can prevent safe, positive engine shutdown, making timely replacement essential for safe operation on the worksite.

The rotary solenoid on a diesel light welder controls fuel flow by rotating to open or close the engine's fuel shutoff valve on command. When energized, it allows the engine to run; when de-energized, it cuts fuel and brings the engine to a stop. A worn or failed solenoid can cause hard starting, failure to shut down on command, or erratic engine behavior — any of which can compromise both productivity and operator safety.

For fitment questions or help confirming this is the correct part for your machine, contact the DHS Equipment team.

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.