The Wacker Neuson 4223-080-1605 Relay is a genuine OEM component designed for the G150, G180, and G230 portable generator series. Sourced directly from Wacker Neuson, this relay meets the exact electrical specifications required by these generators across Standard, Cold Weather, and Custom configurations, including Tier 4 and Tier 4 Final emissions variants. Compatibility extends to both domestic and Transport Canada-certified mobile generator builds within the G-series family, making it the correct choice when you need a verified, like-for-like replacement. With an extensive fitment range covering multiple model years and configurations, part number 4223-080-1605 is a high-demand service item for G-series generator maintenance and repair.
Key Features
- Correct Coil and Contact Ratings — Genuine OEM construction ensures the relay operates at the precise voltage and current thresholds specified for G150, G180, and G230 generator control circuits.
- Direct Plug-In Replacement — Designed to seat directly into the existing relay socket on the generator control panel with no wiring modifications required at the harness connector.
- Broad G-Series Fitment — Covers G150, G180, and G230 models across Standard, Cold Weather, and Custom builds, including Tier 4, Tier 4 Final, and Transport Canada-certified configurations.
- Protects Generator Control Circuits — A correctly functioning relay switches loads cleanly and protects downstream control components; a failed relay can prevent the generator from starting, loading, or shutting down properly.
- Electrical Safety Compliance — As a switching component within the generator's control and protection circuitry, using the OEM-specified relay maintains the integrity of overcurrent and fault-protection logic built into the machine.
A relay is an electrically operated switch that allows a low-power control signal to switch a higher-power circuit on or off without direct mechanical contact. In a portable generator like the G150, G180, or G230, relays are used throughout the control panel to manage functions such as engine start sequences, load switching, fault shutdowns, and indicator circuits. When a relay fails — whether through coil burnout, contact welding, or mechanical fatigue — the circuit it controls stops responding correctly, which can cause the generator to fail to start, refuse to accept a load, or lose automatic protection functions. Replacing a worn relay with the correct OEM part restores proper switching behavior and keeps the generator's control logic functioning as designed.
Part Details
| Part Number | 4223-080-1605 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Relay |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| G230 Generator, Custom T4i | G230 | 5000620883, 5000620881, 5000620882, 5200010141, 5200010142, 5200010143, 5100045190, 5100045596, 5100045597, 5100049846, 5100049847, 5200007862 |
| G180 Generator, Custom T4i | G180 | 5000620886, 5000620884, 5000620885, 5200010140, 5200010138, 5200010139, 5100045089, 5100045575, 5100045576, 5100045590, 5100045591, 5100045592, 5100049844, 5100049845, 5200007861 |
| G150, custom | G150 | 5000620889, 5000620887, 5000620888, 5200014784, 5200010135, 5200010136, 5200010137, 5200007860 |
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.
