Wacker Neuson 5000164839 AC Med. CAN GFI Wiring Harness

The Wacker Neuson is a genuine OEM AC Med. CAN GFI Wiring Harness designed for the GP3800A, GP4000, GP5600A, GPS5600A, GP6600A, and GPS6600A portable generator series. As a direct factory part, ensures correct connector routing, insulation rating, and circuit protection integration specific to Wacker Neuson's Canadian GFI-equipped generator platforms. Whether you're servicing a standard unit or a wheel kit configuration, this harness restores the electrical backbone your generator depends on for safe AC output delivery.

Key Features

• Genuine OEM Electrical Integrity — Factory-sourced harness carries the correct wire gauge, insulation grade, and connector pinout for Wacker Neuson's CAN GFI generator circuit — no guesswork on spec matching.
• Drop-In Connector Compatibility — Harness plugs directly into the existing GFI control and AC output circuit points on supported GP and GPS series generators, matching OEM routing and loom layout.
• Broad GP and GPS Series Coverage — Fits GP3800A, GP4000, GP5600A, GPS5600A, GP6600A, and GPS6600A generators across EPA, CSA, and standard CAN GFI configurations, including wheel kit variants.
• Protects GFI Circuit Function — A damaged or degraded wiring harness can cause nuisance GFI trips, loss of AC output, or failure of ground-fault protection — replacing with part 5000164839 restores proper circuit behavior.
• GFI System Safety Compliance — The wiring harness is a core component of the ground-fault interrupter circuit; using the correct OEM part maintains the intended protection behavior for operator and equipment safety.

The AC Med. CAN GFI Wiring Harness is the central electrical conduit connecting the generator's AC output components to the ground-fault interrupter protection system. It routes power signals and control communication between the GFI module, outlets, and associated control circuitry, ensuring that the generator can detect ground faults and cut output before a hazardous condition develops. When this harness is damaged, corroded, or has a broken connector, the result can range from intermittent power loss and false GFI trips to a complete failure of ground-fault protection — making timely replacement essential for both performance and operator safety.

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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