The Multiquip 16400 is a genuine OEM Fuel Tank Cap with Gasket designed for a wide range of Multiquip GAW-series arc welders, GA-series gasoline-powered generators, Whiteman WM-series mortar mixers, and Essick EM-series mixers. As a direct OEM replacement, part 16400 is built to the same specifications as the original component, ensuring a correct seal and proper venting on every compatible machine. Confirmed fitment includes GAW180HE, GAW180HE1, GAW180HEA, GA3.6HR, GA6HEB, GA6HB, GA3.6HA, GA3.6HZ, GA6HZ, WM90PLF, WM90SLF, WM70PLF, WM70SLF, WM63SLF, EM90SLF, and EM70SLF models. Sourced directly through DHS Equipment, this part ships as an authorized Multiquip OEM replacement.
Key Features
- OEM Seal Integrity — Genuine Multiquip construction ensures the gasket compresses to the correct rating, preventing fuel vapor escape and keeping the tank properly sealed under operating conditions.
- Integrated Gasket Assembly — Cap and gasket ship together as a matched set, so the sealing surface is ready to install without sourcing separate components.
- Broad Cross-Machine Compatibility — Fits GAW180HE-series arc welders, GA-series gasoline generators, WM-series Whiteman mortar mixers, and EM-series Essick mixers — a single part number across multiple equipment lines.
- Fuel System Protection — A properly sealing cap prevents fuel contamination from dirt, debris, and moisture, directly protecting carburetor and engine performance on every compatible machine.
- Fuel Vapor Safety — A correctly seated cap and gasket contain fuel vapors at the tank opening, an important consideration on gasoline-powered welders, generators, and mixers operating near ignition sources.
The fuel tank cap with gasket seals the fuel filler opening on gasoline-powered equipment, keeping fuel contained while allowing controlled venting to prevent pressure buildup inside the tank. The integrated gasket creates a compression seal between the cap and tank neck, blocking dirt, water, and debris from entering the fuel supply. When the gasket deteriorates or the cap is damaged, the seal is compromised — leading to fuel contamination, vapor leaks, and potential hard-start or running issues caused by improper tank pressure.
Part Details
| Part Number | 16400 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Fuel Tank Cap with Gasket |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | GAW180HE |
| Welders | GAW180HE1 |
| Welders | GAW180HEA |
| Gasoline Powered Generators | GA3.6HR |
| Gasoline Powered Generators | GA6HEB |
| Gasoline Powered Generators | GA6HB |
| Gasoline Powered Generators | GA3.6HA |
| Gasoline Powered Generators | GA3.6HZ |
| Gasoline Powered Generators | GA6HZ |
| Whiteman Mixers | WM90PLF |
| Whiteman Mixers | WM90SLF |
| Whiteman Mixers | WM70PLF |
| Whiteman Mixers | WM70SLF |
| Whiteman Mixers | WM63SLF |
| Essick Mixers | EM90SLF |
| Essick Mixers | EM70SLF |
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.
