The Honda 16100-Z5K-W03 is a genuine OEM Carburetor Assembly (BE90A B) designed for GX270 horizontal shaft engines. As a direct Honda OEM component, this carburetor assembly is manufactured to the same specification as the unit that left the factory, ensuring correct jetting, fuel metering, and throttle response without guesswork. Honda supersedes carburetor assemblies at serial breaks, so confirm your engine's serial number against the fitment table before ordering to make sure part number 16100-Z5K-W03 is the right match for your unit.
Key Features
- Correct Jetting and Fuel Metering — as a genuine Honda OEM assembly, this carburetor carries the exact emulsion tube, main jet, and pilot circuit calibration specified for the GX270, so the engine runs at the right air-fuel ratio across the full throttle range.
- Drop-In Carburetor Replacement — this assembly matches the OEM mounting pattern and fuel inlet position on GX270 horizontal shaft engines, so installation follows the standard service procedure without modification.
- GX270 Fitment — built specifically for GX270 horizontal shaft engines; always verify your serial number against the fitment table, as Honda issues updated assemblies at production serial breaks.
- Restored Engine Performance — a worn or clogged carburetor causes hard starting, rough idle, fuel starvation at load, and excessive fuel consumption; replacing it with this assembly brings fuel delivery back to spec and restores full power output.
The carburetor is the component responsible for mixing air and fuel in the precise ratio the engine needs to start, idle, and develop full power under load. It meters fuel through calibrated jets and passages, responds to throttle input to adjust the mixture, and compensates for changes in load and speed. When a carburetor degrades — through wear, varnish buildup from stale fuel, or damaged internal passages — the engine struggles to start, runs rough at idle, surges under load, or loses power entirely. Replacing the assembly with a correctly matched OEM unit restores the fuel delivery the GX270 was engineered around.
Part Details
| Part Number | 16100-Z5K-W03 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BE90A B) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX270 | 2000001-9999999 |
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.
