The Wacker Neuson 12200-ZH9-405 Air Filter is a genuine OEM component designed for the G150, G180, and G230 series portable generators. As a direct OEM replacement, this air filter is manufactured to the exact specification required by Wacker Neuson, ensuring the engine receives properly filtered air across all operating conditions — including Standard, Cold Weather, Custom, and Tier 4 Final configurations. Part number 12200-ZH9-405 covers an extensive range of G-series generator variants, making it the go-to replacement for technicians and fleet operators servicing multiple units. Keep this part on hand to maintain engine performance and protect against premature wear caused by contaminated air intake.
Key Features
- Genuine OEM Filtration Media — Manufactured to Wacker Neuson's exact filtration efficiency specification, ensuring the correct particle capture rate for generator engine protection.
- Drop-In Replacement — Designed to seat and seal correctly within the factory air filter housing on G150, G180, and G230 generators — no trimming or adapting required.
- Broad G-Series Compatibility — Fits G150, G180, and G230 generator models across Standard, Cold Weather, Custom, Mobile, Tier 4, and Tier 4 Final configurations.
- Protects Engine from Contaminant Ingestion — A clean, properly fitted air filter maintains the correct air-fuel mixture and prevents abrasive particles from entering the combustion chamber, directly extending engine service life.
- Fuel System Compliance — Using the correct OEM-specified filter helps maintain emissions compliance on Tier 4 and Tier 4 Final certified generator units.
An air filter prevents dust, debris, and airborne contaminants from entering the engine's intake and combustion system. On portable generators like the G150, G180, and G230, which frequently operate in dusty or demanding jobsite environments, a functioning air filter is critical to maintaining the correct air-fuel ratio and protecting internal engine components. When an air filter becomes clogged or damaged, the engine is forced to work harder, fuel consumption rises, power output drops, and unfiltered air can introduce abrasive particles that accelerate cylinder and piston wear — leading to costly engine repairs if left unaddressed.
Part Details
| Part Number | 12200-ZH9-405 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Air Filter |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| G230 Generator, Custom T4i | G230 | 5000620883, 5000620881, 5000620882, 5200007862, 5200010141, 5200010142, 5200010143, 5100015614, 5100045190, 5100045596, 5100045597, 5100049846, 5100049847 |
| G180 Generator, Custom T4i | G180 | 5000620886, 5000620884, 5200007861, 5000620885, 5200010140, 5200010138, 5200010139, 5100015615, 5100045089, 5100045575, 5100045576, 5100045590, 5100045591, 5100045592, 5100049844, 5100049845 |
| G150, custom | G150 | 5000620889, 5200007860, 5000620887, 5000620888, 5200014784, 5200010135, 5200010136, 5200010137 |
| G150 Generator,Hertz,T4 Final | G150 Generator,Hertz,T4 Final | 5100015616 |
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.
