The Wacker Neuson Spark Plug is a genuine OEM spark plug designed for the MG3, MG5, and MG7 series portable generators. As a factory-sourced component, it meets the exact ignition specifications Wacker Neuson engineers built into these machines — no guesswork on gap, thread pitch, or heat range. This plug is confirmed compatible across a wide range of MG3, MG5, and MG7 regional variants, making it the straightforward choice for service and maintenance. Keep a spare on hand and you're covered for planned maintenance or unexpected ignition issues in the field.
Key Features
- OEM-Correct Heat Range and Gap: — Manufactured to the exact ignition specifications for MG series generators, ensuring consistent spark timing and combustion efficiency.
- Drop-In Installation: — Threads directly into the cylinder head with no modifications needed; matches the OEM thread pitch and reach for a secure, leak-free seat.
- Broad MG Series Fitment: — Compatible with MG3, MG5, and MG7 portable generator variants including CE, AU, CL, LA, CN, ME, BZ, and PH regional models.
- Sustained Engine Output: — A properly firing spark plug keeps combustion clean and power delivery stable; a fouled or worn plug causes hard starts, rough running, and reduced generator output.
- Ignition System Safety: — Using the correct OEM plug prevents misfires and unburned fuel accumulation that can stress the ignition system and create hazardous operating conditions.
A spark plug ignites the air-fuel mixture inside the engine cylinder, triggering the combustion that drives the piston and generates power. In a portable generator, consistent ignition is essential — even a minor misfire disrupts power output and can cause voltage fluctuations that damage connected equipment. When a spark plug wears out, the electrode erodes, the gap widens, and the spark becomes unreliable, leading to hard starts, rough idling, and ultimately engine shutdown. Replacing it on schedule with the correct OEM part keeps combustion clean and the generator running at its rated output.
Part Details
| Part Number | 5000408649 |
|---|---|
| Old Part Number | 0408649 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Spark Plug |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Generators | MG3-CE | 5000630384, 5100055609 |
| Portable Generators | MG3-AU | 5000630385 |
| Portable Generators | MG3-CL | 5000630387 |
| Portable Generators | MG3-LA | 5000630388 |
| Portable Generators | MG3-CN | 5000630390 |
| Portable Generators | MG3-ME | 5000630391 |
| Portable Generators | MG5-AU | 5000630393 |
| Portable Generators | MG5-BZ | 5000630394 |
| Portable Generators | MG5-CL | 5000630395 |
| Portable Generators | MG5-LA | 5000630396 |
| Portable Generators | MG5-PH | 5000630397 |
| Portable Generators | MG5-CN | 5000630398 |
| Portable Generators | MG5-ME | 5000630399 |
| Portable Generators | MG7-BZ | 5000630402 |
| Portable Generators | MG7-CL | 5000630403 |
| Portable Generators | MG7-LA | 5000630404 |
| Portable Generators | MG7-CN | 5000630406 |
| Portable Generators | MG7-ME | 5000630407 |
| Portable Generators | MG5-CE | 5100056312 |
| Portable Generators | MG7-CE | 5100056315 |
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.
