The Honda 16100-Z5T-P81 Carburetor Assembly (BE94B A) is a genuine OEM carburetor assembly designed for GX390 horizontal shaft engines. As a direct Honda OEM component, this carburetor assembly is built to the exact specifications of the original unit it replaces, ensuring correct jetting, fuel metering, and throttle response right out of the box. Honda supersedes carburetor assemblies at serial number breaks, so confirm your engine's serial number against the fitment table before ordering to make sure part number 16100-Z5T-P81 is the correct variant for your unit.
Key Features
- Correct Jetting and Fuel Metering — as a genuine Honda OEM assembly, this carburetor carries the exact main jet sizing, pilot circuit calibration, and needle position the GX390 engine requires for proper air-fuel mixture across its operating range.
- Variant-Specific Fit — the BE94B A designation identifies this as a specific carburetor variant; matching that designation to your engine's serial number and existing carburetor ensures a drop-in installation without adjustment.
- Fits GX390 Horizontal Shaft Engines — purpose-built for the GX390, one of Honda's most widely used commercial horizontal shaft engines across a broad range of professional equipment applications.
- Serial Number Verification Recommended — Honda issues multiple carburetor variants for the GX390 across its production run; checking your engine's serial number against the fitment table confirms this is the right assembly for your machine.
- Restored Engine Response — a worn or gummed carburetor causes hard starting, rough idle, and loss of power; replacing it with this OEM assembly restores clean fuel delivery and consistent engine performance.
The carburetor is responsible for blending air and fuel in the precise ratio the engine needs to start, idle, and run under load. On a GX390 horizontal shaft engine, a correctly functioning carburetor assembly delivers consistent throttle response and stable idle, while a carburetor that is clogged, worn, or calibrated incorrectly causes hard starting, erratic idling, fuel flooding, or a loss of power under load. Replacing a failed unit with a genuine OEM assembly like this part restores the engine's original fuel circuit geometry — including the emulsion tube, float, and needle valve — so the engine performs as Honda intended.
Part Details
| Part Number | 16100-Z5T-P81 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BE94B A) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX390 | 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.
