The Wacker Neuson Alternator is a genuine OEM component designed for the G25 generator series and LTW20Z series light towers, including standard, cold weather, custom, and extended run tank configurations across Tier 4i and T4F emissions variants. As a direct OEM replacement, this alternator is built to the exact output and fitment specifications of the original unit, ensuring correct integration with the machine's electrical system without adaptation. Fitment spans a wide range of G25 and G20 mobile generator configurations as well as LTW20Z1 and LTW20Z3 light tower models — both standard and vertical-lift variants. Verify your machine's model number against the fitment list before ordering to confirm compatibility with your specific unit.
Key Features
- OEM-Rated Electrical Output — Matched to the exact voltage and amperage output required by the G25 and LTW20Z platform, ensuring the charging system performs to spec under load.
- Drop-In Mounting Compatibility — Designed to bolt directly onto the Isuzu-powered G25 and LTW20Z engine mounts, aligning with existing brackets and wiring connectors as originally configured.
- Broad Fitment Across G25 and LTW20Z Families — Covers G25 skid-mounted, custom, cold weather, extended run tank, and 600V switchable variants, plus LTW20Z1 and LTW20Z3 light towers in standard, vertical-lift, and cold weather configurations.
- Sustained Power for Demanding Runtime Applications — A properly functioning alternator keeps batteries charged and electrical loads stable during extended generator or light tower operation; a failing unit can cause voltage drop, battery drain, and unplanned shutdowns.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, part 5000160769 meets the original design requirements for this power and lighting equipment platform.
The alternator is responsible for converting mechanical energy from the engine into electrical energy, which is then used to charge the battery and power the machine's electrical loads during operation. On generators and light towers like the G25 and LTW20Z series, maintaining a healthy alternator output is critical to keeping the control systems, battery, and ancillary circuits functioning correctly during extended run cycles. When an alternator begins to fail, symptoms typically include battery warning indicators, voltage irregularities, difficulty starting, or complete electrical failure — all of which interrupt the continuous operation these machines are designed to deliver.
Part Details
| Part Number | 5000160769 |
|---|---|
| Old Part Number | 0160769 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Alternator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator, Custom | G25 | 5000620346, 5000620344, 5000620345, 5000620642, 5000009466, 5000620004, 5000620640, 5000620709, 5000620641, 5000009368, 5200005557, 5200003991, 5000620931, 5200001316, 5200014461, 5200014460, 5200014462, 5000621005, 5000620706, 5100022834, 5100042507, 5100042510, 5100042512, 5100042509, 5100025836, 5100042508 |
| LTW20Z-1, LIGHT TOWER 60Hz, ISUZU, CUSTOM, T4i | LTW20Z1 | 5000620842, 5000620375, 5200004205, 5200004096, 5200023191, 5200024872 |
| LTW20Z-3, LIGHT TOWER 60HZ, ISUZU TIER 4i | LTW20Z3 | 5000620376, 5000620843, 5200003583, 5200004097, 5200023192 |
| LTW20Z3-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z3-V S | 5200018566, 5200018558, 5200018562, 5200023196, 5100015094, 5100022126 |
| LTW20Z1-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z1-V S | 5200018565, 5200018557, 5200018561, 5200024875, 5200023195, 5100015093, 5100022125 |
| Light Tower | LTW20Z3-V | 5200012881, 5200012885, 5200012867, 5200022694 |
| Light Tower | LTW20Z1-V | 5200012880, 5200012884, 5200012866 |
| Mobile Generator | G20 | 5200016628, 5200022625 |
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.
