The Honda 99101-ZC3-0550 Main Jet (#55) is a genuine OEM component designed for the EX350 inverter generator. As an authentic Honda part, this main jet is manufactured to the exact size specification — #55 — required for correct fuel delivery through the carburetor. Confirm the jet number against your unit's carburetor before ordering, as multiple jet sizes may be listed for this platform.
Key Features
- Exact Orifice Size — the #55 designation specifies the precise metered orifice diameter that governs the fuel-to-air ratio at full throttle; an incorrect size will cause rich or lean running conditions
- Genuine OEM Part — sourced directly from Honda, this jet matches the original carburetor specification for the EX350 inverter generator without substitution or guesswork
- Direct Carburetor Fit — this part installs directly into the main jet bore of the EX350 carburetor; always verify part number 99101-ZC3-0550 and the #55 size against your machine's carburetor assembly before installation
- Serial Number Verification Recommended — Honda updates carburetor components at production breaks, so cross-check your generator's serial number against the fitment table to confirm this is the correct jet for your unit
The main jet is a small, precisely bored brass fitting inside the carburetor's fuel circuit. It meters the volume of fuel drawn into the engine under load, controlling the mixture strength that determines power output and combustion efficiency. A blocked or incorrectly sized main jet causes hard starting, poor power delivery under load, or excessive fuel consumption — replacing a worn or clogged jet restores the carburetor to its intended fuel metering performance.
Part Details
| Part Number | 99101-ZC3-0550 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Jet (#55) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Inverter Generator | EX350 | 1000001-1227630 |
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.
