The Honda 31700-Z15-A31 Automatic Voltage Regulator Assembly is a genuine OEM component designed for the EP2500 generator. As a direct Honda OEM part, it is manufactured to the exact specification of the original unit, ensuring the generator's electrical output remains steady under varying load conditions. Confirm your unit's serial number against the fitment table before ordering to ensure this is the correct assembly for your machine.
Key Features
- Genuine OEM Electrical Accuracy — manufactured by Honda to regulate output voltage within the tight tolerances a conventional generator's alternator requires, protecting connected loads from voltage fluctuation.
- Direct OEM Replacement — part number 31700-Z15-A31 replaces the original AVR assembly on the EP2500 generator with no adaptation needed, restoring stable AC output.
- Serial Number Verification Recommended — Honda supersedes parts at production breaks, so check your EP2500's serial number against the compatibility table to confirm this assembly is the right match for your unit.
- Restored Output Stability — a failed or degraded voltage regulator causes fluctuating or unregulated AC output that can damage sensitive equipment; fitting a correct OEM replacement restores consistent generator performance.
The Automatic Voltage Regulator Assembly is the component in a conventional generator responsible for sensing the alternator's AC output and continuously adjusting field excitation to hold voltage at the rated level — typically 120 V AC — regardless of how much load is connected. Without a functioning AVR, the generator's output voltage rises and falls as loads switch on and off, which can damage tools, electronics, or any other equipment drawing power from the unit. When the regulator fails, symptoms typically include fluctuating voltage readings, overloaded or tripping circuit breakers, or a complete loss of usable AC output; replacing the assembly restores the controlled, stable power the EP2500 generator is designed to deliver.
Part Details
| Part Number | 31700-Z15-A31 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Automatic Voltage Regulator Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EP2500 | 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.
