The Wacker Neuson Cylinder Head is a genuine OEM component designed for GP4000 series portable and premium portable generators. Sourced directly from Wacker Neuson, this cylinder head meets the exact material and dimensional specifications of the original part — ensuring a proper seal, correct torque retention, and consistent combustion chamber geometry. It is confirmed to fit multiple GP4000 configurations, including both standard portable and premium portable variants. When your generator needs a cylinder head replacement, choosing the factory-original part protects the engine's compression integrity and keeps the unit running at rated output.
Key Features
- OEM Combustion Chamber Integrity — Manufactured to Wacker Neuson's original specifications, maintaining correct compression ratios and combustion chamber geometry critical to generator engine performance.
- Direct-Fit Installation — Matches the original bolt pattern, port alignment, and head gasket mating surface, allowing straightforward installation without rework or additional machining.
- Confirmed GP4000 Fitment — Compatible with multiple GP4000 series configurations, covering both standard and premium portable generator variants across several production builds.
- Sustained Engine Output — A properly sealed cylinder head maintains compression and prevents combustion gas blow-by, allowing the engine to deliver consistent power output to the generator end.
- Combustion Sealing Compliance — The OEM head provides correct torque retention points and surface finish to work with the head gasket as a sealed system, reducing the risk of coolant or compression leaks that can cause engine damage.
The cylinder head sits atop the engine block and forms the upper boundary of the combustion chamber. It houses the intake and exhaust valves, provides the mounting surface for the head gasket, and — on many small engines — incorporates passages or fins critical to heat dissipation. When the cylinder head cracks, warps, or develops a failed sealing surface, compression drops sharply, the engine loses power, and combustion gases can escape into unintended areas, leading to accelerated internal wear. Replacing a damaged cylinder head with the correct OEM part restores proper compression and sealing, getting the generator back to full rated performance.
Part Details
| Part Number | 5000214822 |
|---|---|
| Old Part Number | 0214822 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cylinder Head |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Premium Portable Generator | GP4000 | 5000620090, 5000620380, 5000620977, 5000620978, 5000620089 |
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.
