The Wacker Neuson is a genuine OEM Starter Drive Gear Assembly designed for a range of Wacker Neuson portable generators, centrifugal trash pumps, and tandem rollers. As a factory-sourced component, part number is manufactured to the exact tolerances required for proper electric start engagement across compatible equipment. This assembly fits the GS8.5V, GS9.7V, GPS8500, and GPS9700 portable generators, the PTS4V centrifugal trash pump, and the RD880V double drum vibratory roller. Ordering by part number ensures you receive the correct component for a direct, confidence-inspiring installation.
Key Features
- Genuine OEM Gear Tolerancing — Machined to the exact tooth profile and engagement depth specified for Wacker Neuson electric start systems, ensuring smooth, consistent starter motor engagement every time.
- Direct-Fit Installation — Engineered as a drop-in replacement that aligns with the existing starter motor and flywheel ring gear interface — no modifications to the starter housing or mounting required.
- Broad Equipment Compatibility — A single part number covers the GS8.5V, GS9.7V, GPS8500, and GPS9700 generators, PTS4V trash pumps, and the RD880V tandem roller, making it a versatile stock item for mixed fleets.
- Dependable Cranking Performance — A worn or damaged drive gear causes hard starting, erratic engagement, or complete failure to crank — replacing it restores the reliable electric start function your equipment depends on.
- Electrical System Safety — A properly meshing drive gear prevents starter motor over-spin and reduces the risk of flywheel ring gear damage, protecting the broader starting circuit from secondary wear.
The starter drive gear assembly is the mechanical link between the electric starter motor and the engine's flywheel. When the start switch is activated, the drive gear extends and engages the flywheel ring gear to crank the engine over; once the engine fires, the gear retracts to disengage. If the drive gear teeth are worn, chipped, or the engagement mechanism is faulty, the starter motor may spin without turning the engine, produce a grinding noise, or fail to crank the engine at all. Replacing a worn assembly promptly prevents secondary damage to the flywheel ring gear and starter motor.
Part Details
| Part Number | 5000111750 |
|---|---|
| Old Part Number | 0111750 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Starter Drive Gear Assembly |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Generator with Electr ic Start | GS8.5V | 5000007661 |
| Portable Generator with Electr ic Start | GS9.7V | 5000007662 |
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5000007691, 5000007683 |
| Portable Generator with Electr ic Start | GPS8500 | 5000008286 |
| Portable Generator with Electr ic Start | GPS9700 | 5000008287 |
| 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.