The Wacker Neuson Engine Control Module is a genuine OEM component designed for the LTW20Z-1 and LTW20Z-3 series light towers. This is a direct factory-sourced replacement for Isuzu Tier 4i-powered LTW20 light towers, covering standard, cold weather, custom, skidded, and V-series configurations across a wide range of production variants. As a genuine Wacker Neuson OEM part, the is manufactured to the exact specifications required by the LTW20Z series, ensuring the engine management system operates precisely as intended. Confirm your machine's model and serial number against the fitment list before ordering to ensure this is the correct module for your unit.
Key Features
- Genuine OEM Calibration: — Programmed to the precise fuel, timing, and emissions parameters required by the Isuzu Tier 4i engine in the LTW20Z series — not a generic ECM.
- Drop-In Connector Match: — Matches the OEM wiring harness connector and mounting configuration of the LTW20Z series, allowing direct installation without splicing or adapter harnesses.
- Broad LTW20Z Series Coverage: — Fits LTW20Z-1 and LTW20Z-3 variants including standard, cold weather, custom, skidded, and V/V-S configurations across multiple production builds.
- Emissions System Integrity: — Maintains correct Tier 4i emissions compliance by managing fuel delivery and engine outputs to regulatory specification — critical for operation on regulated job sites.
- Protects Against Fault-Induced Downtime: — A failed or corrupted ECM can trigger persistent fault codes, prevent engine start, or cause erratic power output; replacing with the correct OEM module restores normal engine behavior.
The engine control module — also referred to as the ECM — is the electronic brain of the Isuzu Tier 4i engine powering the LTW20Z light tower. It continuously monitors and manages critical engine functions including fuel injection timing, throttle response, and emissions controls, using sensor data to keep the engine running efficiently and within regulatory limits. When the ECM fails or becomes corrupted, symptoms can range from hard starting and erratic idling to complete no-start conditions and active fault codes that prevent the tower from operating — making prompt replacement with the correct OEM module essential to restoring full tower function.
Part Details
| Part Number | 5200003257 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Engine Control Module |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
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.
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