The Honda 31204-ZG3-802 Magnetic Switch Assembly is a genuine OEM component designed for the GD410 horizontal shaft diesel engine. Sourced directly from Honda, this part carries the exact specifications required to keep the GD410's starting system operating as intended. Confirm part number 31204-ZG3-802 against your engine's serial number and parts diagram before ordering to ensure this is the correct assembly for your unit.
Key Features
- Genuine Honda OEM Part — manufactured to Honda's own specifications for the GD410 diesel, ensuring correct electrical ratings and connector compatibility with the factory starting circuit.
- Direct Replacement — this assembly is designed to drop into the GD410 starting system without reworking the harness or mounting hardware, restoring the circuit to its original configuration.
- GD410 Diesel Fitment — built specifically for the GD410 horizontal shaft diesel engine; verify your engine's serial number against the fitment table to confirm applicability.
- Starter Circuit Integrity — a faulty magnetic switch can prevent the starter motor from engaging or cause intermittent no-start conditions; replacing a worn switch restores dependable cranking on demand.
The Magnetic Switch Assembly is an electromechanical relay that sits between the ignition circuit and the starter motor. When the operator activates the start control, the switch closes a high-current circuit that energizes the starter motor, cranking the engine over. If the switch fails — due to worn contacts, a burned coil, or mechanical sticking — the starter motor will not engage, leaving the engine unable to start regardless of battery condition or other system health.
Part Details
| Part Number | 31204-ZG3-802 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Magnetic Switch Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Diesel Engine | GD410 | 1009449-9999999 |
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.
