The Honda 16100-Z3S-803 is a genuine OEM Carburetor Assembly (BE89M C) designed for GX440 horizontal shaft engines. As a direct Honda OEM component, this carburetor is built to the exact specifications Honda requires for correct fuel metering and air-fuel mixture delivery on the GX440. Honda supersedes carburetor assemblies at serial breaks, so confirm your engine's serial number against the fitment table before ordering to ensure part number 16100-Z3S-803 is the right match for your unit.
Key Features
- Correct Jetting and Fuel Metering — as a genuine OEM carburetor, this assembly carries the precise jetting, needle, and emulsion circuit calibrated specifically for the GX440's displacement and fuel demands, ensuring the engine runs at its intended air-fuel ratio
- Direct OEM Replacement — this carburetor assembly replaces the original unit on GX440 horizontal shaft engines and connects to existing fuel and throttle linkage without alteration
- Variant Identification — the BE89M C designation identifies this as a specific carburetor variant; match this code to your existing unit or Honda parts diagram to confirm you have the correct version for your engine
- Serial Number Verification Recommended — Honda updates carburetor specifications mid-production, so cross-reference your GX440 serial number with the compatibility table to confirm this part applies to your engine's production range
The carburetor is responsible for blending air and fuel in the correct ratio before delivering the mixture to the engine's combustion chamber. On a GX440 horizontal shaft engine, a properly functioning carburetor keeps the engine starting cleanly, idling steadily, and producing consistent power under load. When a carburetor wears out or becomes fouled — through varnish buildup, worn jets, or damaged needle seats — the engine may run rough, surge, stall at idle, or refuse to start, making carburetor replacement one of the most common and impactful engine service tasks.
Part Details
| Part Number | 16100-Z3S-803 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BE89M C) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX440 | 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.
