The Honda 31630-891-821 Charge Coil Assembly is a genuine OEM component designed for the GV400 vertical shaft engine. Sourced directly from Honda, this replacement carries the same specifications as the original unit it replaces, making it a straightforward swap for technicians servicing this engine family. If your GV400 is showing signs of charging failure — such as a battery that won't hold a charge or erratic electrical output — this assembly is the correct starting point for the repair.
Key Features
- Genuine OEM Charging Integrity — manufactured by Honda to deliver the correct charge output voltage and winding specifications the GV400 electrical system depends on, not an approximation.
- Direct OEM Replacement — matches the original assembly exactly, allowing installation without modification or adjustment to the charging circuit.
- GV400 Fitment — confirmed for the GV400 vertical shaft engine; verify your engine serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks.
- Restores Electrical Output — a worn or failed charge coil causes the engine to stop generating usable current for battery charging and auxiliary power; replacing this assembly brings that function back to spec.
The charge coil is a stationary winding mounted within the engine's magneto assembly. As the flywheel rotates, its permanent magnets pass over the coil windings and induce an alternating current — this is the raw electrical energy the engine produces to charge a battery or power any onboard electrical loads. When the coil windings degrade, short internally, or suffer damage from heat or vibration, charging output drops or disappears entirely. Replacing the assembly with a genuine Honda part restores the magneto system to its original generating capacity and keeps the electrical side of the GV400 operating as Honda intended.
Part Details
| Part Number | 31630-891-821 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Charge Coil Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Vertical Shaft Engine | GV400 | 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.
