The Honda 16100-Z1A-H01 Carburetor Assembly (BB70B A/B) is a genuine OEM Carburetor Assembly designed for HS520 and HS720 single-stage snow blowers. As a direct Honda OEM component, this carburetor is manufactured to the exact specifications required for proper fuel metering and reliable cold-weather starting on these machines. The BB70B A/B variant designation identifies a specific carburetor configuration — confirm this matches your unit before ordering. Honda supersedes parts at serial number breaks, so cross-reference your snow blower's serial number against the fitment table to ensure part number 16100-Z1A-H01 is the correct replacement for your machine.
Key Features
- OEM Fuel Metering Accuracy — genuine Honda manufacture means jets, needles, and emulsion circuits are sized to the BB70B A/B specification, delivering the correct air-fuel mixture for cold-weather starting and consistent throttle response.
- Variant-Specific Fit — the BB70B A/B designation identifies a distinct carburetor configuration among HS520 and HS720 models; match this variant to the part number shown on your existing carburetor or in your service manual before installing.
- Built for HS520 and HS720 Single-Stage Snow Blowers — designed specifically for Honda's HS520 and HS720 single-stage snow blowers, slotting into the existing fuel and throttle linkage without modification.
- Serial Number Verification Recommended — Honda updates carburetor part numbers across production runs; check the serial number on your snow blower against the fitment table to confirm this is the correct assembly for your unit.
The carburetor is the component responsible for mixing air and fuel in the correct ratio before delivery to the engine's combustion chamber. On a single-stage snow blower like the HS520 and HS720, where reliable cold-weather starting and steady low-speed operation are critical, a properly functioning carburetor is essential. When a carburetor wears, gums up, or develops internal damage — common after fuel is left to degrade in storage — the engine may refuse to start, idle roughly, surge under load, or lose the power needed to drive the rubber paddle auger through heavy snow.
Part Details
| Part Number | 16100-Z1A-H01 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Carburetor Assembly (BB70B A/B) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Single-Stage Snow Blower | HS520, HS720 | 3828956-9999999 |
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.
