The Wacker Neuson is a genuine OEM Left Side Fan Guard designed for the G25 and G20 portable generator series and LTW20Z light tower series. As a factory-sourced component, it meets the original design specifications for your machine — ensuring correct mounting, proper airflow clearances, and consistent protection across all compatible configurations including standard, cold weather, custom, and extended run variants. This part fits a wide range of G25 and LTW20Z configurations spanning multiple Tier 4i and T4F emissions variants, making it the correct choice for fleet operators and service technicians working across mixed equipment inventories.
Key Features
- Genuine OEM Cooling Protection: — Factory-engineered to the original guard profile, ensuring the correct stand-off distance and coverage over the cooling fan assembly on G25, G20, and LTW20Z power units.
- Direct Bolt-On Replacement: — Designed to align with the original mounting points on the left side of the generator housing — no modification to brackets or fasteners needed.
- Broad Model Coverage: — Fits G25 and G20 mobile generators across standard, skid-mounted, cold weather, extended run, and custom configurations, plus the full LTW20Z-1 and LTW20Z-3 light tower family including V and V S variants.
- Cooling System Integrity: — A properly fitted fan guard channels airflow efficiently across the radiator and engine cooling circuit. A missing or damaged guard can disrupt airflow patterns and increase the risk of debris ingestion into the fan.
- Personnel and Equipment Safety: — Guards rotating fan components from accidental contact during servicing and operation — a critical protective element on any open-frame generator or light tower in an active work environment.
The left side fan guard is a protective enclosure panel that shields the cooling fan on portable generators and light towers from physical contact and debris. It works in tandem with the fan shroud and radiator assembly to direct airflow through the cooling circuit, helping the engine maintain safe operating temperatures under load. When the guard is cracked, deformed, or missing entirely, airflow efficiency can drop and rotating components become an exposure risk — making timely replacement important for both machine health and site safety.
Part Details
| Part Number | 5000156187 |
|---|---|
| Old Part Number | 0156187 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Left Side Fan Guard |
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, 5000009258, 5200014460, 5200014462, 5000621005, 5000620706, 5100022834, 5000009462, 5000009476, 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.
