The Multiquip D4268000403 IGBT Module Assembly is a genuine OEM component designed for DLW400ES, DLW400ESA1, DLW500ESA4, DLW400ESA4, and DLW330X2 series diesel light welders. As a direct OEM replacement, this part is built to the exact electrical specifications required by the machine, ensuring proper switching behavior and output regulation. Sourced directly through authorized Multiquip channels, D4268000403 delivers the fit and performance your welder demands.
Key Features
- OEM-Spec Power Switching: — Manufactured to the precise gate threshold voltage and current ratings required by the DLW welder inverter circuit — no guesswork on electrical compatibility.
- Drop-In Replacement: — Matches the original mounting footprint and terminal configuration, allowing direct installation into the existing inverter board assembly.
- Broad DLW Series Fitment: — Confirmed for DLW400ES, DLW400ESA1, DLW500ESA4, DLW400ESA4, and DLW330X2 diesel light welder models.
- Restores Full Welding Output: — A failed IGBT module causes loss of arc stability or complete output failure; replacing with the correct OEM module restores rated amperage and consistent arc performance.
- Electrical Safety Compliance: — Using the correct OEM-rated switching module maintains proper fault protection and prevents downstream damage to the inverter board and control circuitry.
The IGBT (Insulated Gate Bipolar Transistor) Module Assembly is the core power-switching component inside the welder's inverter system. It rapidly switches high-voltage DC current to produce the controlled output that sustains a stable welding arc. When an IGBT module degrades or fails — often due to thermal stress or overcurrent conditions — the welder will produce an unstable arc, reduced output, or shut down entirely. Replacing it with a genuine OEM unit restores the inverter to full rated performance and protects the surrounding control electronics from further damage.
Part Details
| Part Number | D4268000403 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | IGBT Module Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
| Welders | DLW500ESA4 |
| Welders | DLW400ESA4 |
| Welders | DLW330X2 |
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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