The Wacker Neuson Cylinder Head Cover is a genuine OEM component designed for G40 and G50 series portable generators. As a direct factory replacement, it is engineered to exact tolerances and material specifications to maintain proper engine sealing on G40 standard and mobile generator configurations, G40 LATAM Premium models, and the G50 generator. Being a genuine Wacker Neuson part means it ships with the correct geometry, gasket surface finish, and hardware compatibility — no guesswork on fit.
Key Features
- OEM Sealing Integrity — Manufactured to the same surface flatness and material spec as the original, ensuring consistent compression against the head gasket and no oil weepage.
- Drop-In Engine Replacement — Matches the original bolt pattern and mating surfaces exactly, allowing straightforward removal and reinstallation without additional machining or adapter hardware.
- Broad G-Series Generator Fitment — Compatible across multiple G40 variants (standard, mobile, and LATAM Premium configurations) as well as the G50 generator, making it a versatile stock item for fleets running mixed G-series units.
- Protects Engine Internals — A sound cylinder head cover keeps oil vapor contained, prevents external contamination from entering the valve train, and maintains stable crankcase pressure for consistent generator output.
- Genuine Wacker Neuson Part — Supplied directly from the Wacker Neuson parts network under part number 5200021080, so you can be confident in authenticity and long-term availability.
The cylinder head cover seals the top of the engine's cylinder head, enclosing the valve train and rocker components while containing oil mist recirculated through the breather system. It acts as a barrier against dust, moisture, and debris that could accelerate valve and camshaft wear. When the cover warps, cracks, or its sealing surface deteriorates, oil leaks develop around the head — leading to oil loss, external contamination, and potential engine damage if left unaddressed. Replacing a compromised cover promptly keeps the engine running cleanly and preserves the performance that G40 and G50 generator operators depend on.
Part Details
| Part Number | 5200021080 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cylinder Head Cover |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Generator | G40 | 5200015906, 5200015907, 5200016640, 5100029184 |
| Generator | G50 | 5200015909 |
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.
