The Honda 34750-Z1C-D22 Electronic Control Unit is a genuine OEM component designed for Honda EB4000, EB5000, EB6500, EM4000, EM5000, and EM6500 generators. As a direct Honda OEM part, it is manufactured to the same specification as the unit that left the factory, ensuring correct integration with the generator's electrical management system. Honda supersedes control unit part numbers at production breaks, so verify your generator's serial number against the fitment table before ordering to confirm this is the right unit for your machine.
Key Features
- Genuine Honda OEM Part — sourced directly from Honda, this Electronic Control Unit matches the original component in signal compatibility and operational behavior, which matters critically in a closed-loop electrical management system where a mismatched unit can cause improper voltage regulation or output faults.
- Broad Generator Fitment — covers the EB4000, EB5000, EB6500, EM4000, EM5000, and EM6500 conventional generators; use your serial number to confirm the correct application for your unit.
- Direct OEM Replacement — replaces the original control unit with no adaptation, connecting to existing wiring harness plugs as Honda intended for the EB and EM generator lines.
- Restores Proper Output Control — a failed or degraded electronic control unit can cause erratic voltage output, loss of automatic voltage regulation response, or a generator that fails to hold a steady load; replacing it with a correct OEM unit restores stable generator performance.
The Electronic Control Unit governs the electrical output management of these Honda conventional generators, working in conjunction with the alternator and automatic voltage regulator (AVR) to maintain stable voltage and frequency under varying load conditions. It processes operating signals and adjusts output accordingly, keeping connected equipment running within safe electrical parameters. When this unit fails or malfunctions, the generator may produce unstable voltage, fail to respond correctly to load changes, or shut down unexpectedly — making prompt replacement with a correct OEM part essential to restoring dependable generator operation.
Part Details
| Part Number | 34750-Z1C-D22 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Electronic Control Unit |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB4000, EB5000, EB6500, EM4000, EM5000, EM6500 | All |
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.
