The Honda 16100-ZCP-WA1 Carburetor Assembly (BK07S A) is a genuine OEM Carburetor Assembly designed for GX630, GX660, and GX690 horizontal shaft engines. As a direct Honda OEM component, this carburetor is built to the exact specifications of the original unit, ensuring correct fuel metering and air-fuel mixture delivery without the guesswork of adapting an off-spec replacement. This assembly carries the BK07S A variant designation — confirm this matches your engine's original carburetor before ordering, as Honda uses multiple carburetor variants across these engine families depending on the serial range of your unit.
Key Features
- Correct Fuel Metering — genuine OEM jetting, needle position, and emulsion tube calibration match the fuel delivery curve Honda engineered into the GX630, GX660, and GX690 engines, so the engine runs at its intended power and fuel efficiency from the first start
- Exact-Match BK07S A Variant — Honda supplies multiple carburetor assemblies for these engines; this unit carries the BK07S A designation, which must match the original fitted to your machine — verify against your engine's serial number and parts diagram before ordering
- Direct OEM Replacement — sourced directly from Honda, this assembly installs in place of the factory unit with no modification, retaining all original mounting interfaces, fuel inlet orientation, and choke and throttle linkage attachment points
- Restored Engine Response — a worn or clogged carburetor causes hard starting, rough idle, and power loss under load; replacing it with a fresh OEM assembly restores crisp throttle response and stable operation across the engine's full RPM range
- Serial Number Verification Recommended — Honda supersedes carburetor part numbers at production serial breaks; check your engine's serial number against the fitment table to confirm part number 16100-ZCP-WA1 is correct for your specific unit
The carburetor assembly is responsible for blending fuel and air in the precise ratio the engine needs to run cleanly across all throttle positions. On a large-displacement horizontal shaft engine like the GX630, GX660, or GX690, the carburetor handles significant airflow volume, and its internal circuits — idle, main, and accelerator — must be accurately calibrated to keep the engine responsive under varying loads. When a carburetor wears, varnishes internally from stale fuel, or develops a leak, the result is typically hard starting, hunting at idle, stumbling under load, or excessive fuel consumption; replacing the assembly with a genuine Honda unit resets all of those circuits to the original specification and restores the engine to the performance level it was designed to deliver.
Part Details
| Part Number | 16100-ZCP-WA1 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BK07S A) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX630, GX660, GX690 | 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.
