The Honda 16100-Z4M-WC1 is a genuine OEM Carburetor Assembly (BE99M A) designed for GX160 horizontal shaft engines, WB20 water pumps, WB30 water pumps, and WMP20 water pumps. As a genuine Honda part, it is manufactured to the exact specifications Honda requires for correct fuel delivery and reliable operation across these applications. This carburetor carries the BE99M A variant designation — confirm your unit's carburetor code before ordering, as multiple carburetor variants are catalogued for these models. Sourcing the correct variant by part number 16100-Z4M-WC1 ensures a proper drop-in replacement without the need for jetting changes or fuel circuit adjustments.
Key Features
- Correct Jetting and Fuel Metering — genuine OEM construction means the main jet, needle, and emulsion circuits are calibrated to Honda's specification for the BE99M A variant, so air-fuel delivery is restored exactly as designed
- Direct OEM Replacement — this carburetor assembly replaces the original unit on GX160 engines and WB20, WB30, and WMP20 water pumps, matching the original mounting flange, fuel inlet, and throttle linkage geometry
- Variant-Specific Fit — the BE99M A designation identifies a specific carburetor configuration; buyers should verify this code against their existing carburetor before purchasing, as swapping an incorrect variant can affect performance and starting
- Serial Number Verification Recommended — Honda supersedes carburetor parts at serial number breaks, so check your engine or pump serial number against the fitment table to confirm part number 16100-Z4M-WC1 is correct for your unit
- Restored Starting and Power Output — a worn or gummed carburetor causes hard starting, rough idle, and power loss; replacing it with this genuine assembly restores clean throttle response and full-load output
The carburetor is the component responsible for mixing air and fuel in the correct proportion before it enters the engine's combustion chamber. On small engines and water pump powerheads like the GX160, WB20, WB30, and WMP20, the carburetor controls everything from idle speed to wide-open-throttle fuel delivery — so when it wears, clogs, or develops internal leaks, the engine becomes difficult to start, runs unevenly, or loses the power needed to drive the pump at its rated flow. Replacing a failed or heavily contaminated carburetor assembly with a genuine OEM unit is the most direct way to return the engine to its original operating condition without the guesswork of cleaning a carburetor that has deteriorated beyond serviceable limits.
Part Details
| Part Number | 16100-Z4M-WC1 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BE99M A) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160 | All |
| Water Pump | WB20, WB30, WMP20 | 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.
