The Honda 16100-Z6K-WA4 Carburetor Assembly (WYB 48A) is a genuine OEM replacement built for GX35 horizontal shaft engines, HHT35 trimmers, UMC425 trimmers, and UMC435 trimmers. As a direct Honda OEM component, this carburetor assembly is engineered to the exact specifications Honda set for the WYB 48A carburetor, ensuring the correct jetting, fuel metering, and air-fuel ratio for these small-displacement engines. Confirm part number 16100-Z6K-WA4 against your machine's serial number and parts diagram before ordering, as Honda supersedes carburetor assemblies at specific serial breaks.
Key Features
- Correct Jetting and Fuel Metering — as a genuine Honda OEM assembly, this carburetor ships with factory-calibrated jets and needle settings matched to the WYB 48A specification, so the engine runs at the right air-fuel mixture from the first pull
- Direct OEM Replacement — the Carburetor Assembly (WYB 48A) replaces the original unit with no retuning or adaptation, restoring clean idle and throttle response on compatible GX35 engines and trimmers
- Broad Trimmer Fitment — designed for GX35 horizontal shaft engines as well as HHT35, UMC425, and UMC435 trimmers; verify your model and serial number against the fitment table to confirm the correct assembly for your unit
- Serial-Number Verification Recommended — Honda updates carburetor assemblies at production serial breaks; always cross-check your machine's serial number with the compatibility table to ensure part number 16100-Z6K-WA4 is the right supersession for your engine
- Restored Power and Clean Running — a worn or gummed carburetor causes hard starting, rough idle, and loss of power; replacing it with this genuine assembly brings fuel delivery back to spec and keeps the engine running cleanly under load
The carburetor is the component responsible for mixing air and fuel in the precise ratio the engine needs to combust efficiently. On small-displacement engines like the GX35 and the trimmers it powers, the carburetor must deliver a consistent, correctly metered mixture across a wide throttle range — from low idle to full-load cutting speed. When a carburetor wears, becomes clogged with varnish deposits, or develops a stuck float or needle, the result is hard starting, erratic idle, fuel flooding, or a noticeable drop in cutting power. Replacing the assembly with a genuine Honda unit restores the fuel circuit to its original operating condition.
Part Details
| Part Number | 16100-Z6K-WA4 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (WYB 48A) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX35 | All |
| Trimmer | HHT35 | 2432708-9999999 |
| Trimmer | UMC425, UMC435 | 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.
