The Honda 16100-ZG1-703 Carburetor Assembly (BF07A C) is a genuine OEM Carburetor Assembly designed for the HR173 lawn mower. As a direct Honda OEM replacement, this carburetor assembly is built to the exact specifications of the original unit, ensuring the correct fuel-to-air mixture calibration for the HR173. Verify your unit's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks and this assembly is application-specific.
Key Features
- OEM Fuel Metering Accuracy — manufactured by Honda to match the original jetting, emulsion ports, and idle circuit calibration of the BF07A C carburetor, so the engine runs at the fuel mixture the HR173 was engineered for
- Direct-Fit Replacement — this carburetor assembly is designed to replace the original unit on the HR173 lawn mower without rework or modification to the mounting interface or fuel inlet
- Serial Number Verification Recommended — Honda updates part numbers at production serial breaks; confirm your mower's serial number against the fitment table to ensure this is the correct assembly for your machine
- Restored Engine Performance — a worn or varnished carburetor causes hard starting, rough idle, and loss of power under load; replacing it with this genuine assembly restores clean, stable combustion across the full throttle range
The carburetor is responsible for blending fuel and air in the precise ratio the engine needs to start, idle, and run under load. On a walk-behind lawn mower like the HR173, a properly functioning carburetor ensures smooth throttle response and consistent power through varying grass conditions. When the carburetor becomes clogged with varnish from stale fuel, or its internal passages and jets wear over time, the engine may run rough, surge, refuse to start, or stall — replacing the assembly is the most reliable path to restoring normal operation.
Part Details
| Part Number | 16100-ZG1-703 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BF07A C) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HR173 | 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.
