The Multiquip 99201ZG80850 Main Jet Set (#85 High Altitude) is a genuine OEM component designed for GA-9.7 portable generators and SGW-250SS welders. As a direct OEM replacement, this jet set is manufactured to the same specifications as the original, ensuring correct fuel metering at elevation. Sourced directly through Multiquip's authorized parts network, the part is the correct high-altitude calibration choice for operators running GA-9.7 or SGW-250SS equipment in lower-oxygen environments where standard jetting causes a rich-running condition.
Key Features
- OEM-Calibrated High-Altitude Jetting — The #85 sizing is factory-specified for correct fuel-to-air ratio at altitude, preventing rich running, power loss, and excessive fuel consumption.
- Direct Carburetor Drop-In — Engineered to install directly into the OEM carburetor bore without modification, maintaining original fuel circuit geometry.
- Confirmed Fitment — Verified for GA-9.7 portable generators and SGW-250SS welder/generators; check your model code before ordering.
- Consistent Power Output at Elevation — Correct jetting keeps combustion efficient in thin air, sustaining rated wattage output and stable engine RPM under load.
- Fuel System Integrity — A properly sized main jet prevents lean or rich conditions that can damage valves, pistons, and other internal engine components over time.
The main jet is a small but critical brass metering component inside the carburetor that controls how much fuel enters the engine under full-throttle or high-load conditions. At higher altitudes, the air is thinner, so a smaller jet orifice — in this case the #85 high-altitude specification — reduces fuel flow to match the reduced oxygen available for combustion. When the wrong jet is installed, the engine runs either too rich (wasting fuel, producing black smoke, and fouling plugs) or too lean (risking overheating and internal damage), making the correct jet selection essential for safe and efficient operation.
For fitment questions or help confirming this part suits your machine, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 99201ZG80850 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Main Jet Set (#85 High Altitude) |
Compatibility & Fitment
| Name | Model |
|---|---|
| Portable Generators | GA-9.7 |
| Welders | SGW-250SS |
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.
