Wacker Neuson 5000156322 Trailer Lights Wiring Harness

The Wacker Neuson is a genuine OEM Trailer Lights Wiring Harness designed for LTC4L and LTC4C series light towers. As a direct factory replacement, this harness is sourced from Wacker Neuson and built to the same specifications as the original component installed at the factory. Compatible across multiple LTC4L and LTC4C configurations — including standard, 50Hz, 50Hz CE, and Power Winch variants — this harness covers a wide range of units in the LTC light tower family. When your trailer lighting circuit fails or becomes damaged, replacing it with the correct OEM harness keeps your tow lighting system compliant and your tower road-legal during transport.

Key Features

• Correct Connector and Circuit Layout — Engineered to match the original wiring routing and connector positions on LTC4L and LTC4C light towers, so installation follows the same path as the factory harness.
• Genuine OEM Sourcing — Supplied directly through Wacker Neuson's parts network, ensuring the correct wire gauge, insulation grade, and circuit protection for trailer lighting duty cycles.
• Broad LTC Family Coverage — Fits LTC4L (standard and 50Hz), LTC4L-P with Power Winch, LTC4C (standard), and LTC4C-P with Power Winch configurations across multiple machine numbers.
• Road-Legal Trailer Lighting Restoration — A functioning trailer lights harness is required for legal towing on public roads; a broken or shorted harness disables brake lights, turn signals, and running lights entirely.
• Safety-Critical Electrical Compliance — Trailer lighting circuits are subject to DOT road-use requirements; using the correct OEM harness ensures proper signal output and grounding rather than a field-adapted substitute.

The Trailer Lights Wiring Harness connects the tow vehicle's electrical system to the light tower's trailer-mounted lighting — including brake lights, turn signals, and running lights. It carries low-voltage signals from the tow hitch connector through to each lighting fixture, providing the circuits required for safe road transport. When the harness is damaged, corroded, or develops an open circuit, the trailer lights stop functioning entirely, making the unit illegal to tow on public roads and creating a genuine safety hazard for other road users. Replacing the harness with part number 5000156322 restores full trailer lighting function and ensures the wiring meets the original design specification.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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