The Wacker Neuson Pinion Gear is a genuine OEM component designed for the ES52Y, ES45Y, and ES50 series electric rammers. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original gear installed at the factory. It is confirmed to fit both 230V and 115V variants of the ES52Y, the ES45Y electric rammer, and ES50 models equipped with the 280/11in shoe. Keeping the drive train in proper working order starts with using the correct replacement gear — and the is the right part for these machines.
Key Features
- Genuine OEM Gear Geometry — Machined to the exact tooth profile and pitch of the original, ensuring smooth mesh and full torque transfer within the drive train.
- Direct Drop-In Replacement — Engineered to the same shaft interface and bore dimensions as the factory-installed pinion, so it seats correctly without modification.
- Broad ES-Series Compatibility — Fits ES52Y (230V and 115V), ES45Y, and ES50 (280/11in shoe) electric rammers, covering multiple machines with one verified part number.
- Drive Train Integrity — A worn or broken pinion gear causes irregular ramming rhythm, loss of compaction force, or complete drivetrain failure; replacing it restores consistent impact performance.
- Backed by Wacker Neuson — As a genuine OEM part, the 5000085771 is held to Wacker Neuson's own quality and material standards for gear components in electric rammer applications.
The pinion gear is a core component of the electric rammer's internal drive system. It meshes with the main drive gear to transfer rotational power from the motor into the reciprocating motion that drives the rammer's foot up and down. When the pinion gear wears, chips, or fails, the machine loses the ability to deliver consistent compaction blows — resulting in uneven soil compaction or a complete loss of ramming action. Replacing a damaged pinion gear with the correct OEM part restores the mechanical link between the motor and the compaction foot, getting the rammer back to full working capacity.
Part Details
| Part Number | 5000085771 |
|---|---|
| Old Part Number | 0085771 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pinion Gear |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Electric Rammer 230V | ES52Y | 5000007688, 5000008290 |
| Electric Rammer | ES45Y | 5000007164 |
| 280/11in Shoe, Vibratory Ramme r | ES50 | 5200013514, 5200013515 |
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.
