The Honda 16100-ZJ1-W32 is a genuine OEM Carburetor Assembly (BG22K B) designed for GX610 and GX620 horizontal shaft engines. As a direct Honda OEM component, this carburetor assembly is manufactured to the exact jetting, fuel metering, and emulsion specifications Honda engineers set for these large-displacement twins, so fuel delivery stays consistent across the full operating range. Confirm your engine's serial number against the fitment table before ordering, as Honda supersedes carburetor assemblies at specific serial breaks within the GX610 and GX620 lines. The BG22K B variant designation identifies this specific calibration — match it to your existing unit to ensure you are ordering the correct assembly.
Key Features
- Correct Jetting and Fuel Metering — genuine OEM construction means the main jet, pilot circuit, and needle are calibrated precisely for GX610 and GX620 displacement, delivering the air-fuel ratio Honda specifies for clean starting and steady throttle response.
- Variant-Specific Fit — the BG22K B designation identifies this carburetor assembly's exact calibration; matching this code to your current unit ensures the correct replacement without substituting an incompatible specification.
- GX610 and GX620 Fitment — built for Honda's GX610 and GX620 horizontal shaft engines; check your engine's serial number against the compatibility table, as this assembly applies to specific serial ranges within both models.
- Restores Full Power Output — a worn or clogged carburetor starves the engine of a consistent fuel charge, causing hard starts, rough idle, and loss of power under load; replacing it with this OEM assembly brings fuel delivery back to Honda's original specification.
The carburetor assembly is the component responsible for mixing air and fuel in the correct ratio before that charge enters the engine's combustion chambers. On large-displacement horizontal shaft engines like the GX610 and GX620, precise fuel metering across idle, mid-range, and wide-open throttle is critical to maintaining steady power under varying loads. When a carburetor deteriorates — through varnish buildup, worn needle seats, or damaged emulsion circuits — the engine struggles to start, runs rough at idle, or surges under load; installing a fresh OEM assembly restores the calibrated fuel delivery these engines depend on.
Part Details
| Part Number | 16100-ZJ1-W32 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BG22K B) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX610, GX620 | 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.
