The Wacker Neuson Cylinder Head is a genuine OEM component designed for the PTS4V 4-inch centrifugal trash pump series, GPS8500 and GS8.5V portable generators, and the RD11V hydrostatic double drum vibratory roller. As a direct factory replacement, this cylinder head is sourced and validated by Wacker Neuson to meet original build specifications for these machines. Confirm your model and serial number against the fitment list before ordering — this part spans multiple equipment families that share a common engine platform.
Key Features
- Genuine OEM Casting Integrity — Manufactured to Wacker Neuson's original tolerances for combustion chamber geometry, ensuring correct compression and valve seating across the engine's service life.
- Drop-In Engine Replacement — Engineered to align with the existing head gasket surface, valve train, and fastener pattern for a straightforward swap without machining or shimming.
- Broad Cross-Family Fitment — Confirmed for PTS4V trash pumps, GPS8500 and GS8.5V portable generators, and the RD11V tandem roller — all sharing the same engine configuration.
- Combustion Performance Restored — A worn or cracked cylinder head leads to compression loss, overheating, and hard starting; replacing it with the correct OEM part restores full power output and stable engine operation.
- Critical Sealing Surface Maintained — The machined mating face is held to tight flatness standards, preventing head gasket failure and coolant or oil intrusion into the combustion chamber.
The cylinder head seals the top of the engine's cylinder bore, forming the upper boundary of the combustion chamber where the air-fuel mixture ignites. It houses the intake and exhaust valve seats, guides, and — depending on the engine configuration — may incorporate coolant passages to manage operating temperatures. When a cylinder head cracks, warps, or develops damaged valve seats, the engine loses compression, runs rough, overheats, and can suffer progressive internal damage if not addressed promptly. Replacing it with part number 5000116544 restores the combustion seal and keeps the engine running at the output level these machines depend on in the field.
Part Details
| Part Number | 5000116544 |
|---|---|
| Old Part Number | 0116544 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cylinder Head |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5000007691, 5000007683, 5000620971 |
| Portable Generator with Electr ic Start | GPS8500 | 5000008286 |
| Portable Generator with Electr ic Start | GS8.5V | 5000007661 |
| PTS4V(I) Pump | PTS4V(I) | 5000620972 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11V | 5000007694 |
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.
