The Wacker Neuson Negative Electrode Terminal is a genuine OEM component designed for the ML series Light Towers, ML series Multifunction Floodlight Towers, and MG series Portable Generators. As a direct OEM replacement, this terminal is manufactured to the same specification as the original part — ensuring a correct, secure connection every time. Fitment covers a wide range of ML240, ML225, ML425, and ML440 Light Tower configurations, as well as MG3 and MG5 Portable Generator variants including sd and d sub-models. Keep part number on hand as a service spare to minimize electrical system disruptions across your Wacker Neuson fleet.
Key Features
- OEM-Spec Conductivity — Manufactured to the original electrical contact specification, ensuring correct current flow at the negative battery connection without voltage drop or resistance issues.
- Direct-Connect Replacement — Matches the original terminal geometry and cable attachment point, dropping straight into place on the battery negative post with no reworking of the cable loom.
- Broad Fleet Coverage — A single part number covers ML240, ML225, ML425, and ML440 Light Towers, ML Multifunction Floodlight Towers, and MG3 and MG5 Portable Generators across numerous build configurations.
- Electrical System Integrity — A sound negative terminal maintains the complete circuit path required for engine starting, battery charging, and load management — a corroded or failed terminal can cause no-start conditions and erratic electrical behavior.
- Electrical Safety Compliance — A correctly rated OEM negative terminal prevents arcing, heat buildup, and unintended current paths that can damage sensitive generator and lighting control components.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, part 5000404081 carries full OEM traceability and is the authorized replacement for all listed ML and MG model configurations.
The negative electrode terminal is the battery's ground connection point — it completes the electrical circuit that allows the engine to crank, the alternator to charge, and all onboard systems to operate. On light towers and portable generators, a reliable negative terminal is especially critical because these machines depend on stable battery voltage to manage automatic start systems, lighting controls, and load regulation. When this terminal corrodes, loosens, or fails, the result can range from hard starting and flickering lights to a complete loss of electrical function — making prompt replacement with a correctly specified OEM part the fastest way to restore full operation.
Part Details
| Part Number | 5000404081 |
|---|---|
| Old Part Number | 0404081 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Negative Electrode Terminal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Light Towers | ML440 | 5000630117, 5000630204, 5000630323, 5000630324, 5000630325, 5000630327 |
| Light Towers | ML240 | 5000630118, 5000630205, 5000630326 |
| Light Towers | ML425 | 5000630119, 5000630206 |
| Light Towers | ML225 | 5000630120, 5000630207 |
| Portable Generators | MG5 | 5000630137, 5000630143, 5000630233, 5000630254, 5000630224, 5000630229, 5000630237, 5000630239, 5000630252, 5000630308, 5000630310, 5000630334 |
| Portable Generators | MG3 | 5000630142, 5000630135, 5000630256, 5000630225, 5000630230, 5000630234, 5000630238, 5000630240, 5000630253, 5000630309, 5000630311, 5000630335 |
| Portable Generators | MG3sd | 5000630201, 5000630215, 5000630235 |
| Portable Generators | MG5sd | 5000630202, 5000630214, 5000630236 |
| MG5 Generator | MG5d | 5000630211 |
| MG3 Generator | MG3d | 5000630213 |
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.
