The Wacker Neuson Starter Drive Gear Assembly is a genuine OEM component designed for PTS4V centrifugal trash pumps, GPS8500, GPS9700, GS8.5V, and GS9.7V portable generators, and RD11V and RD880V double drum vibratory rollers. Sourced directly from Wacker Neuson, part meets the original engineering specifications your equipment was built around. This assembly spans several machine families — from high-volume trash pumps to electric-start generators and tandem asphalt rollers — making accurate part number verification essential before ordering. Cross-reference your model and machine number to confirm fitment before placing your order.
Key Features
- Genuine OEM Gear Engagement Integrity — Manufactured to the original tooth profile and engagement geometry, ensuring the drive gear meshes correctly with the flywheel ring gear on every cold or warm start.
- Direct Bolt-In Replacement — Installs in the same position as the factory unit with no modification to the starter housing or engine block required.
- Broad Cross-Family Fitment — Compatible with PTS4V trash pumps, GPS8500, GPS9700, GS8.5V, and GS9.7V portable generators, and RD11V and RD880V tandem vibratory rollers.
- Consistent Cranking Power — A correctly functioning starter drive gear delivers clean, full engagement every time the ignition is triggered, protecting the ring gear from premature wear caused by slipping or partial engagement.
- Electrical System Safety — A worn or damaged drive gear can cause the starter motor to over-spin or kick back, placing undue stress on the starter circuit and increasing the risk of electrical damage; replacing with a genuine assembly restores safe, controlled engagement.
The starter drive gear assembly connects the electric starter motor to the engine's flywheel ring gear during the cranking cycle. When the ignition is activated, the drive gear extends and meshes with the ring gear to rotate the engine until combustion occurs, then retracts automatically once the engine fires. Over time, the gear teeth can wear, chip, or the engagement mechanism can stick, resulting in hard starts, grinding noises, or a starter motor that spins without turning the engine. Replacing a worn assembly restores reliable engine cranking across all machines that share this drivetrain configuration.
Part Details
| Part Number | 5000111583 |
|---|---|
| Old Part Number | 0111583 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Starter Drive Gear Assembly |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5000007691, 5000007683 |
| Portable Generator with Electr ic Start | GPS9700 | 5000008287, 5000620264 |
| Portable Generator with Electr ic Start | GPS8500 | 5000008286 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11V | 5000007694 |
| Portable Generator with Electr ic Start | GS8.5V | 5000007661 |
| Portable Generator with Electr ic Start | GS9.7V | 5000007662 |
| 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.
Wacker Neuson
Wacker Neuson Part # 5000080881 - Gear Assembly, Starter Drive - Genuine OEM Part
