The Honda 31204-ZE1-721 Starter Magnetic Switch Assembly is a genuine OEM component designed for GX160 horizontal shaft engines. As a direct Honda replacement, this assembly is built to the same specification as the original, ensuring it integrates correctly with the GX160 electrical starting system. Honda supersedes parts at serial number breaks, so confirm your engine's serial number against the fitment table before ordering to be sure part number 31204-ZE1-721 is the right match for your unit.
Key Features
- Genuine OEM Switching Precision — sourced directly from Honda, this assembly delivers the correct contact resistance and coil engagement characteristics the GX160 starting circuit requires, unlike generic substitutes that may not match the original electrical ratings.
- Direct-Fit Replacement — engineered to the original connector and mounting configuration, this assembly installs into GX160 horizontal shaft engines without rework or adaptation.
- Serial Number Awareness — Honda updates part supersessions at defined serial breaks; always cross-reference your engine serial number with the fitment table to confirm this is the correct assembly for your specific GX160.
- Restored Starting Performance — a failed magnetic switch prevents the starter motor from engaging or causes intermittent cranking; replacing it restores consistent, full-current engagement every time the key is turned.
The Starter Magnetic Switch Assembly — commonly called a solenoid — is the high-current relay that sits between the ignition switch and the starter motor. When the operator activates the starter, a low-current signal energizes the solenoid coil, which pulls a contact plate closed to complete the high-current circuit between the battery and starter motor, allowing the engine to crank. When this component fails, the starter motor receives no current, resulting in a single click, intermittent cranking, or complete failure to turn over despite a healthy battery.
Part Details
| Part Number | 31204-ZE1-721 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Starter Magnetic Switch Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160 | 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.
