The Honda 99101-ZH8-0500 Main Jet (#50) is a genuine OEM carburetor component designed for GXV140 vertical shaft engines and Honda HR195, HR215, HRB215, HRM195, and HRM215 lawn mowers. As a direct Honda OEM part, it is manufactured to the exact size and specification required for proper fuel metering in the carburetor. Always confirm your model and serial number against the fitment table before ordering, as Honda supersedes jet sizes at production breaks. This Main Jet (#50) is the correct variant for the listings shown — buyers should verify the "#50" size matches their carburetor's original specification.
Key Features
- Exact Jet Sizing — the #50 designation is the orifice size that governs fuel flow at full throttle; an incorrect jet size will cause rich or lean running and power loss
- Genuine Honda OEM — sourced directly from Honda, this jet meets the precise bore diameter and flow tolerance the original carburetor was calibrated to
- Broad Fitment — listed for GXV140 vertical shaft engines and HR195, HR215, HRB215, HRM195, and HRM215 lawn mowers; confirm your serial number against the fitment table to ensure this is the correct supersession for your unit
- Direct Carburetor Replacement — installs into the carburetor body the same way the factory jet does, with no modification required to the fuel system
The main jet is the precisely bored orifice inside the carburetor through which fuel is drawn into the engine's air stream under normal running and full-throttle conditions. Its size — expressed as a number such as #50 — determines how much fuel the engine receives, and the correct sizing is critical to achieving the proper air-fuel mixture for clean combustion and full power output. When a main jet becomes clogged with varnish or debris, the engine will run lean, surge, lose power, or refuse to reach full speed; a jet with a worn or enlarged bore causes over-rich running, fouled plugs, and excessive fuel consumption.
Part Details
| Part Number | 99101-ZH8-0500 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Jet (#50) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HR195, HR215, HRB215, HRM195, HRM215 | All |
| Vertical Shaft Engine | GXV140 | 7359897-9999999 |
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.
