Multiquip D4264500503 DC Reactor

The Multiquip D4264500503 DC Reactor is a genuine OEM component designed for the DLW300ES, DLW300ESA, and DLW300ESA1 diesel light welder series. As a direct OEM replacement, this part is manufactured to the same specifications as the original, ensuring correct electrical characteristics and a proper drop-in fit within the machine's power circuit. Sourced directly through authorized Multiquip distribution, the D4264500503 carries the full confidence of OEM provenance for operators who depend on their equipment to perform consistently on the job.

Key Features

• OEM-Matched Inductance Rating — Built to the original electrical specification for the DLW300ES power circuit, ensuring correct current smoothing and arc stability performance.
• Direct-Fit Replacement — Engineered to match the original mounting configuration and terminal connections of the DLW300ES, DLW300ESA, and DLW300ESA1 units.
• DLW300ES Series Compatibility — Confirmed fitment across the DLW300ES, DLW300ESA, and DLW300ESA1 diesel light welder models.
• Stable Arc Output — A correctly functioning DC reactor smooths output current ripple, which directly supports consistent weld arc quality and protects downstream electrical components from current spikes.
• Genuine OEM Part — Supplied as an authentic Multiquip component, not a generic substitute, so you know you're restoring the machine to its original operating condition.

The DC reactor in a diesel light welder is an inductive component placed in the DC output circuit after the rectifier. Its role is to smooth the pulsating DC current produced by the rectifier, reducing ripple and stabilizing the arc during welding operations. When a DC reactor degrades or fails, operators typically notice erratic arc behavior, inconsistent output, or increased electrical stress on other components in the circuit — making timely replacement critical to maintaining weld quality and protecting the machine.

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.