The Wacker Neuson Alternator is a genuine OEM component designed for G25 and G12 series mobile generators, including skid-mounted and cold-weather configurations. As a direct OEM replacement, this alternator is manufactured to the exact output and fitment specifications of the original unit, ensuring the generator performs as intended straight out of the box. Verified fitment covers multiple G25 variants — skid-mounted, mobile, and cold-weather builds — as well as the G12 skid-mounted mobile generator.
Key Features
- Correct Output Specification: — Engineered to deliver the precise voltage and amperage output required by the G25 and G12 generator platforms — no calibration or adjustment needed after installation.
- Genuine OEM Part: — Sourced directly from Wacker Neuson, this alternator matches the original component in every dimension, connector type, and mounting configuration.
- Broad G-Series Fitment: — Confirmed compatibility across multiple G25 configurations (skid-mounted, mobile, and cold-weather) and the G12 skid-mounted mobile generator.
- Sustained Power Generation: — A properly functioning alternator keeps battery charge stable and supports consistent electrical output under load; a failed unit can cause voltage drop, battery drain, and generator shutdown.
- Electrical System Integrity: — Using the correct OEM alternator protects connected electrical systems from irregular voltage that can result from an undersized or mismatched replacement unit.
The alternator in a portable generator is responsible for converting mechanical energy from the engine into electrical power for the battery charging circuit and onboard electrical systems. It works continuously while the engine runs, maintaining stable voltage to support both the generator's control systems and any connected charging loads. When an alternator begins to fail, symptoms typically include a declining battery charge, warning lights, and eventual engine shutdown — making timely replacement critical to keeping the generator operational on site.
Part Details
| Part Number | 5000116336 |
|---|---|
| Old Part Number | 0116336 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Alternator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Skid-mounted Mobile Generator | G25 | 5000009258, 5000008228, 5000009462, 5000009476 |
| Mobile Generator, Skid Mounted | G12 | 5000008227 |
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.
