The Wacker Neuson Mh Ballast 400w is a genuine OEM component designed for ML440 and ML240 series light towers and multifunction floodlight towers. Sourced directly from Wacker Neuson, this ballast carries the same part number used on the original production line, so there is no guesswork about compatibility. It fits across a wide range of ML440 and ML240 configurations, including RAW-variant models, making it the straightforward choice for fleet operators and service technicians working across multiple units.
Key Features
- Correct 400w Output Rating — Matched to the lamp wattage specification of the ML440 and ML240 light head assemblies, ensuring the arc lamp strikes and sustains at the intended brightness level.
- Genuine OEM Part — Manufactured to Wacker Neuson's electrical tolerances for this ballast circuit, delivering the regulated voltage and current waveform the metal halide lamp requires to operate correctly.
- Direct Drop-In Replacement — Shares the same mounting footprint and wiring connections as the original unit, so installation follows the standard service procedure without adapting the harness.
- Broad ML-Series Compatibility — Confirmed fitment across ML440 and ML240 light tower variants, including standard and RAW configurations and multifunction floodlight tower builds.
- Electrical Safety Compliance — As a genuine OEM ballast, it meets the original circuit protection and insulation requirements designed into the light tower's electrical system, keeping the unit operating within its rated safety parameters.
- Extended Lamp Life — A ballast in good condition delivers a stable, controlled start-up surge and steady operating current; a failed or degraded ballast causes premature lamp burnout, flickering, or a no-start condition that sidelines the entire light tower.
A metal halide ballast is the electrical control device that regulates the high-voltage arc needed to start a metal halide lamp and then limits the current to keep it burning steadily during operation. Without a functioning ballast, the lamp cannot ignite or will burn erratically, producing reduced light output or failing entirely. When a ballast begins to fail, the most common symptoms are slow lamp startup, flickering during operation, or a light head that powers on but produces no light at all — all of which put the work site in the dark.
Part Details
| Part Number | 5000403615 |
|---|---|
| Old Part Number | 0403615 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Mh Ballast 400w |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Light Towers | ML440 | 5000630117, 5000630204, 5000630323, 5000630324, 5000630325, 5000630327 |
| Light Towers | ML240 | 5000630118, 5000630205, 5000630326 |
| Light Towers | ML440(RAW) | 5000630333, 5000630181 |
| Light Towers | ML240(RAW) | 5000630179 |
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.
Wacker Neuson
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