The Wacker Neuson Cylinder Head is a genuine OEM component designed for PTS4V series trash pumps, GPS8500 and GS8.5V portable generators, and the RD11V tandem roller. As a direct Wacker Neuson OEM part, the is manufactured to the same specifications as the original, ensuring a correct drop-in fit with no guesswork on compatibility. This cylinder head is confirmed to fit the PTS4V, PTS4V(I), GPS8500, GS8.5V, and RD11V — making it a versatile stock item for fleet operators running multiple Wacker Neuson machines. When your engine is down, sourcing the right OEM cylinder head the first time gets your equipment back on the job without unnecessary delays.
Key Features
- OEM Combustion Chamber Integrity — Cast and machined to original tolerances, maintaining correct compression ratios and combustion chamber geometry for consistent engine output.
- Direct Bolt-On Replacement — Matches original port locations, valve seat positions, and head bolt patterns for a straightforward swap on supported engines.
- Broad Wacker Neuson Fitment — Covers PTS4V and PTS4V(I) trash pumps, GPS8500 and GS8.5V portable generators, and the RD11V tandem roller in a single part number.
- Restored Engine Performance — A cracked, warped, or leaking cylinder head causes compression loss and overheating; replacing with this OEM unit restores proper sealing between the block and valvetrain.
- Critical Sealing Surface Quality — The precision-finished mating surface supports correct head gasket compression, preventing combustion gas bypass and coolant or oil intrusion into the cylinder.
The cylinder head sits at the top of the engine block and seals the combustion chamber, housing the intake and exhaust valves, valve seats, and — depending on engine configuration — the spark plug port. It works together with the head gasket to contain combustion pressure and maintain the temperature and pressure conditions the engine needs to run efficiently. When a cylinder head cracks, warps from overheating, or develops a failed sealing surface, the engine loses compression, runs rough, overheats, and may begin mixing oil or coolant with combustion gases — all conditions that will take a machine out of service quickly if not addressed.
Part Details
| Part Number | 5000116545 |
|---|---|
| Old Part Number | 0116545 |
| 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.
