The Honda 31700-196-000 Silicon Rectifier is a genuine OEM component designed for Honda EM3800, EM4000, EM5000, and EM6500 generators, as well as the EM7000 and EU6500 inverter generators. As an authentic Honda part, it is manufactured to the same specification as the original, ensuring a direct, compatible fit for the charging circuit on these units. Always verify your generator's serial number against the fitment table before ordering, as Honda supersedes parts at specific serial breaks.
Key Features
- Genuine OEM Charging Accuracy — sourced directly from Honda, this rectifier meets the exact electrical specification required to convert and regulate AC output to DC for the battery-charging circuit on these generators.
- Direct Replacement — built to match the original component, this part installs without alteration into the supported EM and EU series units.
- Broad Generator Compatibility — fits EM3800, EM4000, EM5000, and EM6500 conventional generators as well as EM7000 and EU6500 inverter generators; check your serial number to confirm the correct part for your unit.
- Charging Circuit Integrity — a failed rectifier prevents the generator from maintaining battery charge, leaving electric-start models unable to crank; replacing a faulty rectifier restores dependable start-up performance.
The silicon rectifier is the component in a generator's charging circuit responsible for converting alternating current (AC) produced by the alternator into the direct current (DC) needed to charge the unit's battery. It functions as a one-way electrical gate, allowing current to flow in only one direction so that a stable DC voltage reaches the battery terminals. When the rectifier fails, the charging circuit stops working entirely — electric-start generators will draw down the battery with no way to replenish it, eventually leaving the unit unable to start without an external charge source.
Part Details
| Part Number | 31700-196-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Silicon Rectifier |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EM3800, EM4000, EM5000, EM6500 | All |
| Inverter Generator | EM7000, EU6500 | 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.
