Multiquip D5264500103 DC Reactor

The Multiquip D5264500103 DC Reactor is a genuine OEM component designed for the DLW300ES, DLW300ESA, DLW300ESA1, DLW400ES, DLW400ESA, and DLW400ESA1 series diesel light welders. As a direct OEM replacement, this part matches the original specification installed at the factory, ensuring it integrates correctly with the welding output circuit without any adaptation. Sourced directly through authorized Multiquip supply channels, the D5264500103 is the correct part to specify when servicing or restoring output quality on DLW-series machines.

Key Features

• Genuine OEM Inductance Rating — matched to the original electrical specification of the DLW-series welding circuit, ensuring consistent arc smoothing and output stability.
• Direct Plug-In Replacement — engineered to the same terminal configuration and mounting footprint as the original, allowing straightforward installation on DLW300ES and DLW400ES series units.
• Broad DLW-Series Fitment — confirmed compatible with DLW300ES, DLW300ESA, DLW300ESA1, DLW400ES, DLW400ESA, and DLW400ESA1 diesel light welder models.
• Stable Arc Performance — a functioning DC reactor suppresses ripple in the welding current output, producing a smoother arc and cleaner weld bead; a failed or degraded reactor causes erratic arc behavior and inconsistent weld quality.
• Electrical Safety Compliance — using the correct OEM reactor maintains the designed current-smoothing protection within the output circuit, which is critical for safe operation of DC welding equipment.

A DC reactor is an inductive component wired into the direct current output circuit of a welder-generator. Its job is to filter out fluctuations in the welding current, smoothing the arc so the operator can lay consistent, controlled welds. When a DC reactor degrades or fails, the output current becomes unstable, leading to a spitting or wandering arc, poor weld fusion, and increased spatter. Replacing the reactor with the correct OEM part restores the smooth, steady output the machine was built to deliver.

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.