The Multiquip D4268000303 IGBT Module Assembly is a genuine OEM component designed for the DLW300ES, DLW300ESA, and DLW300ESA1 diesel light welder series. As a direct OEM replacement, this module meets the original electrical specifications required to restore proper power switching and arc output performance to your machine. Sourced directly through authorized Multiquip supply channels, part number D4268000303 is the correct replacement for these models — no guesswork on compatibility. DHS Equipment stocks genuine Multiquip parts so you can get your welder back online with confidence.
Key Features
- Genuine OEM Switching Precision — Manufactured to the exact electrical switching characteristics required by the DLW300ES-series inverter circuit, ensuring accurate current modulation and stable arc behavior.
- Drop-In Electrical Replacement — Connects directly to the existing inverter board harness and mounting points on DLW300ES, DLW300ESA, and DLW300ESA1 units without any circuit modification.
- Confirmed Fitment for DLW300ES Series — Verified for DLW300ES, DLW300ESA, and DLW300ESA1 Multiquip diesel light welders using the model codes from Multiquip's OEM parts documentation.
- Restores Full Welding Output — A failed or degraded IGBT module causes loss of arc stability, erratic output, or complete shutdown; replacing it with D4268000303 returns the machine to its rated welding capacity.
- Electrical Safety Integrity — As a core component of the inverter power stage, using a genuine OEM IGBT module ensures the switching circuit operates within its designed voltage and current thresholds, protecting surrounding board components.
The IGBT (Insulated Gate Bipolar Transistor) Module Assembly is the heart of the inverter power stage in diesel light welders like the DLW300ES series. It controls the rapid switching of high-voltage DC power into the regulated output that drives the welding arc — without it functioning correctly, the machine cannot maintain a stable or usable weld. When an IGBT module degrades or fails, symptoms typically include unstable arc quality, reduced output power, thermal shutdowns, or complete loss of welding function, making prompt replacement critical to keeping the unit operational.
Part Details
| Part Number | D4268000303 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | IGBT Module Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
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.
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