The Multiquip B1138000003 Exciter Field Assembly is a genuine OEM component designed for the DLW500ESA4 diesel light welder. As a direct OEM replacement, this part is produced to the exact specifications of the original, ensuring the exciter system in your DLW500ESA4 operates as intended. Sourced through DHS Equipment, the B1138000003 gives you confidence that you are installing the correct assembly the first time.
Key Features
- Genuine OEM Winding Specification — Wound to the original electromagnetic output spec, maintaining correct excitation voltage and field strength for your welder's alternator system.
- Drop-In Replacement — Matches the original mounting configuration and electrical connections of the DLW500ESA4 exciter housing, allowing straightforward installation without adapting hardware.
- Confirmed Fitment for DLW500ESA4 — Verified for the Multiquip DLW500ESA4 diesel light welder series, so there is no guesswork on compatibility before you order.
- Restored Output Stability — A functioning exciter field assembly sustains consistent generator output voltage; a failed or degraded field coil causes unstable or absent AC output, taking your welder offline.
- Electrical Safety Compliance — OEM field assemblies meet the original insulation class and thermal ratings of the machine, keeping the alternator operating within its designed electrical safety envelope.
The exciter field assembly is a core component of the generator's self-excitation system. It produces the magnetic field that induces current in the rotor, which in turn allows the alternator to build and regulate output voltage. When the field assembly degrades — through coil breakdown, insulation failure, or moisture damage — the welder loses the ability to generate stable power, resulting in weak arc performance or a complete loss of output. Replacing the assembly with a genuine OEM part like the Multiquip B1138000003 restores the machine to its original electrical performance.
Part Details
| Part Number | B1138000003 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Exciter Field Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW500ESA4 |
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.
