The Multiquip 99201ZG80820 Main Jet Set #82 High Altitude is a genuine OEM carburetor service component designed for the GA-9.7 portable generator and SGW-250SS welder. Sourced directly from Multiquip, this jet set delivers the correct fuel metering calibration for high-altitude operating conditions, ensuring the carburetor receives the right air-fuel mixture when atmospheric pressure is reduced. Verified for compatibility with GA-9.7 and SGW-250SS models, this is a direct OEM replacement you can install with confidence.
Key Features
- OEM-Calibrated Metering: — Machined to the exact #82 orifice specification, ensuring the carburetor delivers the correct fuel flow rate at high-altitude atmospheric pressures — not an approximation.
- High-Altitude Specific Tune: — Purpose-built for elevated-elevation operation where a standard jet would run excessively rich, causing rough running, fouled plugs, and power loss.
- Direct Carburetor Replacement: — Designed to seat and thread into the carburetor body the same way as the original jet, with no modification to the fuel circuit or float bowl required.
- Protects Engine Output and Efficiency: — A correctly sized main jet keeps combustion clean and power output consistent; an oversized or worn jet causes fuel waste, carbon buildup, and unstable load handling.
- Confirmed Fitment for GA-9.7 and SGW-250SS: — Verified OEM replacement for Multiquip GA-9.7 portable generators and SGW-250SS welders operating in high-altitude environments.
- Fuel System Integrity: — As an OEM component, this jet set meets the original fuel system design tolerances, which is critical for safe and stable operation of generator and welder applications.
The main jet is the primary fuel-metering component inside the carburetor, controlling how much fuel enters the engine under normal running conditions. At high altitude, the air is thinner, so a standard main jet delivers too much fuel relative to available oxygen — causing a rich condition that reduces power, increases emissions, and can foul the engine over time. The #82 high-altitude jet set corrects this imbalance by restricting fuel flow to match the reduced air density, restoring proper combustion efficiency. A worn, clogged, or incorrect jet will result in hard starting, erratic RPM, and poor load response — replacing it with the correct OEM-spec jet is essential for reliable performance at elevation.
For questions about fitment or to confirm this is the right part for your equipment, contact the DHS Equipment team for assistance.
Part Details
| Part Number | 99201ZG80820 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Main Jet Set #82 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.
