The Honda 99101-ZH8-0820 Main Jet (#82) is a genuine OEM carburetor main jet designed for an extensive range of Honda engines, generators, tillers, riding mowers, snow blowers, water pumps, and outboard motors. As a direct Honda OEM component, this jet is calibrated to the exact #82 orifice size Honda specifies, ensuring correct fuel delivery across the full range of compatible equipment. This part is listed for models including GX200, GX240, GX270, GX360, GXV620, EB3500, EB4000, EB5000, EB6500, EG3500, EG4000, EM3500, EM4000, EM5000, EM6500, EN3500, EN5000, EX3300, EZ3500, EZ5000, FR600, FR800, H3011, H3013, HS1332, HS928, HSS1332, HSS928, WT20, WT30, BF4, BF5, BF6, BF8, BF75, and BF100 — verify part number 99101-ZH8-0820 against your machine's serial number and parts diagram before ordering.
Key Features
- Calibrated Fuel Metering — the #82 orifice size is Honda's specified rating for correct air-fuel mixture at the carburetor main circuit; an incorrect jet size results in rich or lean running conditions that affect power output and fuel consumption
- Genuine Honda OEM Component — sourced directly from Honda, this jet matches the original specification exactly, with no guesswork on orifice sizing or thread form
- Broad Cross-Equipment Fitment — listed across Honda horizontal shaft engines, vertical shaft engines, generators, tillers, riding mowers, two-stage snow blowers, water pumps, and portable outboard motors; confirm compatibility using your model and serial number
- Serial Number Verification Recommended — Honda supersedes carburetor jets at production breaks, so always confirm part number 99101-ZH8-0820 against the fitment table and your machine's serial number before installing
The main jet is the primary metering orifice inside the carburetor's main circuit. It controls how much fuel enters the air stream at mid to full throttle, and the calibrated hole size — in this case #82 — determines the fuel-to-air ratio the engine runs on under load. A clogged, worn, or incorrectly sized main jet causes hard starting, stumbling under load, excessive fuel consumption, or black exhaust smoke. Replacing a damaged or fouled jet with the correct OEM specification restores the carburetor's ability to deliver the fuel mixture the engine was designed to run on.
Part Details
| Part Number | 99101-ZH8-0820 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Jet (#82) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3500, EB4000, EB5000, EB6500, EG3500, EG4000, EM3500, EM4000, EM5000, EM6500, EN3500, EN5000, EX3300, EZ3500, EZ5000 | All |
| Horizontal Shaft Engine | GX200, GX240, GX270, GX360 | All |
| Outboard Motor | BF75 | All |
| Portable Outboard Motor | BF4, BF5, BF6, BF8, BF100 | All |
| Riding Mower | H3011, H3013 | All |
| Tiller | FR600, FR800 | All |
| Two-Stage Snow Blower | HS928, HS1332, HSS928, HSS1332 | All |
| Vertical Shaft Engine | GXV620 | All |
| Water Pump | WT20, WT30 | 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.
