The Honda 31230-Z4M-003 Gear Assembly is a genuine OEM component designed for GX160 and GX200 horizontal shaft engines. As a direct Honda OEM part, it is manufactured to the exact specifications of the original, ensuring correct engagement and reliable integration with the surrounding drivetrain components. This Gear Assembly is confirmed for GX160 and GX200 engines — verify your engine's serial number against the fitment table to confirm the right application before ordering, as Honda supersedes parts at serial breaks.
Key Features
- Genuine OEM Gear Geometry — manufactured to Honda's original tooth profile and dimensional spec, so mesh, backlash, and load transfer are correct from the first start
- Direct OEM Replacement — drops in as a like-for-like swap on GX160 and GX200 horizontal shaft engines with no rework to mating components
- Serial Number Matters — Honda updates gear assemblies at production breaks; cross-reference your engine serial number with the fitment table to confirm this is the right assembly for your unit
- Restored Power Transfer — a worn or damaged gear assembly causes rough engagement, noise, and eventual drive failure; this replacement restores clean, positive power transmission
The Gear Assembly is part of the engine's starter or drive gear train, transmitting rotational force between two shafts or between the starter mechanism and the crankshaft. When gear teeth wear, chip, or strip, the assembly can no longer transfer torque smoothly, resulting in difficult starting, grinding noise, or a complete failure to engage. Replacing a worn Gear Assembly with a genuine Honda part restores proper mesh and keeps the engine cranking and running as intended.
Part Details
| Part Number | 31230-Z4M-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Gear Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160, GX200 | 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.
