The Honda 99101-Z0H-0320 Jet (#32) is a genuine OEM carburetor main jet designed for Honda FG110 tillers, GX25 horizontal shaft engines, HHT25, HHT35, UMC425, and UMC435 trimmers, and WX10 water pumps. As a direct Honda OEM component, this jet is manufactured to the exact dimensions and flow rate specified for the carburetor circuits it serves across these compact-displacement machines. Confirm your unit's serial number against the fitment table before ordering, as Honda supersedes jets at specific production breaks. This is a small but critical component — using part number 99101-Z0H-0320 ensures your machine runs on the correct fuel metering specification.
Key Features
- Correct Fuel Metering — genuine OEM construction means the orifice diameter is held to Honda's specification, delivering the precise air-fuel ratio these small-displacement carburetors require
- Direct OEM Replacement — drops into the carburetor bore in place of the original jet with no modification, preserving the fuel circuit Honda engineered for each application
- Broad Compact-Equipment Fitment — listed for the FG110 tiller, GX25 engine, HHT25, HHT35, UMC425, and UMC435 trimmers, and the WX10 water pump; verify your serial number to confirm the correct jet for your specific unit
- Restored Throttle Response — a worn, clogged, or incorrectly sized jet causes hard starting, rough idle, or lean-running conditions; this replacement restores clean, consistent fueling across the RPM range
A carburetor main jet is a small, precisely machined orifice that meters the flow of fuel into the carburetor's venturi, where it mixes with incoming air before entering the combustion chamber. The diameter of the jet's opening controls how much fuel is delivered at a given engine speed, so even a slight variation — from wear, debris blockage, or an incorrect substitute — disrupts the air-fuel mixture and degrades performance. When a jet becomes clogged or eroded, the engine may run lean, lose power, surge at steady throttle, or refuse to start; installing the correct OEM jet restores the fuel flow the carburetor was designed around.
Part Details
| Part Number | 99101-Z0H-0320 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Jet (#32) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX25 | All |
| Tiller | FG110 | All |
| Trimmer | HHT25, HHT35, UMC425, UMC435 | All |
| Water Pump | WX10 | 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.
