The Wacker Neuson Carburetor Insulator Gasket is a genuine OEM carburetor insulator gasket designed for MG3 portable generators and ML-series light towers, including the ML225, ML240, and ML425. As a factory-sourced component, the delivers an exact material match to the original part, ensuring a proper seal between the carburetor and intake without improvisation or adaptation. This gasket is confirmed to fit across the full MG3 generator lineup — including MG3sd and MG3d variants — as well as Multifunction Floodlight Tower configurations, making it a versatile service part for mixed fleets. Keep a spare on hand to avoid unnecessary downtime when scheduled or emergency carburetor service arises.
Key Features
- OEM Sealing Material: — Manufactured to the same material specification as the original, ensuring correct compression and heat resistance between the carburetor and intake block.
- Drop-In Carburetor Fit: — Profiles match the OEM carburetor mounting face exactly, so the gasket seats cleanly without trimming or shimming during installation.
- Broad Fleet Coverage: — A single part number covers MG3, MG3sd, and MG3d portable generators plus ML225, ML240, and ML425 light towers and Multifunction Floodlight Towers.
- Prevents Air Leaks and Fuel-Mix Disruption: — A compromised insulator gasket allows unmetered air into the fuel circuit, causing rough running, hard starts, and erratic throttle response. This genuine replacement restores the sealed path the carburetor depends on.
- Fuel System Integrity: — Proper carburetor sealing is critical in fuel-system service; using the correct OEM gasket helps maintain the intended fuel-to-air ratio and reduces the risk of fuel vapors escaping at the joint.
The carburetor insulator gasket sits between the carburetor body and the engine's intake port, forming a sealed, thermally insulated interface that keeps intake air and fuel mixture contained and prevents engine heat from transferring back into the carburetor. Without a sound gasket, air can sneak past the joint, leaning out the fuel mixture and causing performance issues ranging from rough idling to complete failure to start. When this gasket deteriorates — through heat cycling, chemical exposure, or compression set — replacing it promptly restores the airtight seal the carburetor needs to meter fuel accurately and keep the engine running at its rated output.
Part Details
| Part Number | 5000404016 |
|---|---|
| Old Part Number | 0404016 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Carburetor Insulator Gasket |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Light Towers | ML240 | 5000630118, 5000630205, 5000630326 |
| Light Towers | ML425 | 5000630119, 5000630206 |
| Light Towers | ML225 | 5000630120, 5000630207 |
| Portable Generators | MG3 | 5000630142, 5000630135, 5000630256, 5000630225, 5000630230, 5000630234, 5000630238, 5000630240, 5000630253, 5000630309, 5000630311, 5000630335 |
| Portable Generators | MG3sd | 5000630201, 5000630215, 5000630235 |
| MG3 Generator | MG3d | 5000630213 |
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.
