The Multiquip 16400ZE2704 is a genuine OEM Diaphragm Assembly GA-3.6H,6H designed for Multiquip gasoline-powered arc welders and generators including the GAW180HE, GAW180HE1, GAW180HEA, GA3.6HR, GA6HEB, and GA6HB. As a factory-sourced component, this diaphragm assembly carries the exact material composition and dimensional tolerances specified by Multiquip for these units. Sourced directly through authorized supply channels, 16400ZE2704 ensures the carburetor on your welder or generator operates exactly as intended — maintaining consistent fuel delivery and reliable engine response. DHS Equipment stocks this genuine OEM part to help you get your equipment back to full operation without guesswork on fitment.
Key Features
- OEM-Grade Diaphragm Material — Manufactured to the same fuel-resistant compound spec as the original, ensuring consistent flexibility and sealing performance across the carburetor's fuel metering circuit.
- Drop-In Carburetor Fit — Engineered to the exact profile of the GA-3.6H and 6H carburetor assembly, seating correctly without trimming, shimming, or modification to the carb body.
- Broad Fitment Across the GAW180HE and GA Series — Confirmed for GAW180HE, GAW180HE1, GAW180HEA, GA3.6HR, GA6HEB, and GA6HB models, covering both Honda-powered arc welder and generator variants in this family.
- Restores Proper Fuel Metering — A worn or cracked diaphragm causes hard starting, rough idle, and erratic engine load response. Replacing with 16400ZE2704 brings the carburetor's metering function back to spec, supporting steady output under welding or generator load.
- Fuel System Integrity — A correctly seated, undamaged diaphragm maintains the sealed separation between fuel and air circuits in the carburetor — critical for safe, leak-free operation on a gasoline-powered machine.
The carburetor diaphragm is a flexible membrane inside the fuel metering system that regulates fuel flow in response to engine demand. As engine vacuum fluctuates with load, the diaphragm flexes to open and close the fuel circuit, keeping the air-to-fuel ratio consistent. Over time, exposure to fuel, heat, and repeated flexing causes the diaphragm to stiffen, crack, or distort — leading to fuel starvation, hard starting, or uneven engine performance. Replacing a degraded diaphragm with a correctly spec'd OEM component like the Multiquip 16400ZE2704 restores the carburetor's ability to meter fuel precisely, which is especially important on arc welders and generators where stable engine output directly affects weld quality and electrical output.
Part Details
| Part Number | 16400ZE2704 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Diaphragm Assembly GA-3.6H,6H |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | GAW180HE |
| Welders | GAW180HE1 |
| Welders | GAW180HEA |
| Gasoline Powered Generators | GA3.6HR |
| Gasoline Powered Generators | GA6HEB |
| Gasoline Powered Generators | GA6HB |
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.
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