The Wacker Neuson Cam Gear is a genuine OEM component designed for the GS8.5V, GS9.7V, GPS8500, and GPS9700 portable generators with electric start. As a factory-sourced part, the meets the original engineering tolerances and material specifications set for these units. This cam gear is a direct match for the generator models listed, so installation integrates cleanly with the existing valve train and timing system. Confirm your model number before ordering to ensure an accurate fit.
Key Features
- Genuine OEM Gear Geometry — Machined to the original tooth profile and pitch specifications, ensuring correct meshing and consistent valve timing without adjustment.
- Direct-Fit Installation — Engineered to seat onto the original camshaft journal and align with the crankshaft timing marks, matching the factory assembly exactly.
- Broad Generator Fitment — Compatible with the GS8.5V, GS9.7V, GPS8500, and GPS9700 electric-start portable generator series from Wacker Neuson.
- Sustained Engine Timing Accuracy — A correctly functioning cam gear keeps valve events synchronized with piston travel, supporting clean combustion and stable power output under load.
- OEM Part Number Assurance — Sourced directly through Wacker Neuson's parts program under part number 5000116539, eliminating guesswork when cross-referencing your service manual.
The cam gear is a precision timing component located inside the engine's lower end. It meshes with the crankshaft gear to rotate the camshaft at exactly half the crankshaft speed, which controls when the intake and exhaust valves open and close in relation to piston movement. If the cam gear wears, chips, or develops excessive backlash, valve timing shifts out of specification — leading to hard starting, loss of power, increased fuel consumption, and potential engine damage if left unaddressed. Replacing a worn cam gear with the correct OEM part restores proper synchronization and protects the rest of the valve train.
Part Details
| Part Number | 5000116539 |
|---|---|
| Old Part Number | 0116539 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cam Gear |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Generator with Electr ic Start | GS8.5V | 5000007661 |
| Portable Generator with Electr ic Start | GS9.7V | 5000007662 |
| Portable Generator with Electr ic Start | GPS8500 | 5000008286 |
| Portable Generator with Electr ic Start | GPS9700 | 5000008287 |
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.
Wacker Neuson