The Wacker Neuson Throttle Adjustment Screw is a genuine OEM component designed for the GS8.5V and GPS8500 portable generators with electric start, as well as the RD880V double drum vibratory roller. As a direct OEM replacement, this part is sourced from Wacker Neuson and matches the original specification for a straight-swap installation with no guesswork. Whether you are restoring accurate throttle response on a job-site generator or bringing an RD880V roller back up to operating spec, part number is the correct replacement to use. Always verify your machine's model number and serial number before ordering to confirm fitment.
Key Features
- OEM-Matched Thread and Geometry — Manufactured to the exact thread pitch and dimensional tolerances of the original, ensuring the adjustment screw seats and turns correctly in the throttle assembly without stripping or misalignment.
- Direct Drop-In Replacement — Replaces the factory-installed screw in the GS8.5V, GPS8500, and RD880V throttle linkage with no rework to the surrounding components.
- Cross-Family Fitment — A single part number covers the GS8.5V and GPS8500 portable generator series as well as the RD880V double drum vibratory roller, making it a practical stock item for mixed fleets.
- Precise Throttle Control Restored — A worn or damaged throttle adjustment screw causes erratic engine speed, poor fuel control, and inconsistent output; replacing it restores stable RPM regulation across the machine's operating range.
- Genuine Wacker Neuson OEM Part — Supplied as an authentic Wacker Neuson component, so you can be confident the part you receive matches what came off the production line.
The throttle adjustment screw controls the resting position and range of movement of the throttle in the engine's carburetor or fuel system linkage, setting the baseline engine speed and governing how the throttle responds across its range. When this screw is correctly set and in good condition, the engine holds a steady idle and responds predictably to load changes — critical for a generator maintaining stable voltage output and for a vibratory roller sustaining consistent drum frequency. If the screw is worn, backed out, or broken, the engine may hunt, surge, or fail to hold the intended RPM, degrading both output quality and operator control.
Part Details
| Part Number | 5000080905 |
|---|---|
| Old Part Number | 0080905 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Throttle Adjustment Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Generator with Electr ic Start | GS8.5V | 5000007661 |
| Portable Generator with Electr ic Start | GPS8500 | 5000008286 |
| Double Drum Vibratory Roller | RD880V | 5000006736 |
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.
