The Honda 16100-ZN1-U42 is a genuine OEM Carburetor Assembly (BK01G B) designed for GX670 horizontal shaft engines. As a direct Honda OEM component, this carburetor assembly is manufactured to the exact specifications of the original unit it replaces, ensuring the fuel-air delivery your GX670 engine depends on is restored correctly. Honda supersedes carburetor assemblies at serial number breaks, so verify your engine's serial number against the fitment table before ordering to confirm part number 16100-ZN1-U42 is the right variant for your unit.
Key Features
- OEM Fuel Metering Accuracy — genuine Honda construction means the jets, emulsion tubes, and needle seats are calibrated to the GX670's specific fuel-air requirements, not approximated.
- Variant-Specific Fitment — the (BK01G B) designation identifies this as a specific carburetor variant; match it to the part number stamped on your original unit or confirmed in your engine's parts list.
- Built for GX670 Horizontal Shaft Engines — engineered specifically for this large-displacement twin-cylinder engine platform, with the correct inlet geometry and bowl configuration for a drop-in exchange.
- Serial Number Awareness — Honda issues multiple carburetor assemblies across the GX670 production run; always cross-reference your engine serial number against the compatibility table to confirm this is the correct variant before installation.
The carburetor is responsible for mixing fuel and air in the precise ratio the engine needs to start reliably, idle smoothly, and deliver full power under load. On a large-displacement engine like the GX670, correct fuel metering across all throttle positions is critical — a worn or damaged carburetor causes hard starting, erratic idling, fuel flooding, or a significant loss of power output. Replacing a failed unit with a genuine OEM assembly like this one restores the engine's original fuel delivery characteristics without the guesswork of re-jetting or adjusting an aftermarket substitute.
Part Details
| Part Number | 16100-ZN1-U42 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BK01G B) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX670 | 1031201-9999999 |
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.
