The Wacker Neuson is a genuine OEM Needle Roller Bearing NK1620 designed for the BS52Y, BS45Y, BS45YA, ES52Y, and ES45Y vibratory rammer series. As a direct factory replacement, this bearing meets the original design tolerances required to keep your rammer's internal drivetrain running smoothly under the repetitive high-impact loads these machines generate. Genuine OEM sourcing means you receive the exact bearing specification — including correct bore, outer diameter, and needle complement — that Wacker Neuson engineered into these models from the start. Whether you're servicing a gas-powered BS rammer or an electric ES model, part number confirms a verified match across the entire Y-series rammer lineup.
Key Features
- Correct Bearing Geometry for High-Impact Drivetrain Loads — NK1620-spec needle roller construction maintains radial load capacity under the rapid, repetitive impact cycles that define rammer operation.
- Genuine OEM Part — Sourced directly from Wacker Neuson, this bearing carries the original dimensional specification, ensuring it seats correctly in the housing without modification.
- Broad Y-Series Rammer Compatibility — Fits BS52Y, BS45Y, BS45YA, ES52Y, and ES45Y models, covering both gasoline-powered and electric vibratory rammers in the Y-series family.
- Protects Crankshaft and Connecting Rod Surfaces — A properly functioning needle roller bearing minimizes metal-to-metal contact at critical rotating interfaces; a worn bearing accelerates shaft wear and causes erratic ramming action.
- Drop-In Service Replacement — Matches the original bearing envelope, allowing straightforward installation during scheduled drivetrain maintenance or unplanned bearing failure repair.
A needle roller bearing uses a ring of thin, cylindrical rolling elements to carry radial loads between two rotating or oscillating surfaces while occupying a very compact radial space. In a vibratory rammer, this bearing supports the crankshaft or connecting rod journal, transmitting the rotational force from the engine into the vertical reciprocating motion that drives the shoe into the ground. When the bearing wears or loses its needle complement, increased play develops at the journal, producing vibration beyond design limits, accelerated internal wear, and ultimately a loss of compaction force — or a seized drivetrain that takes the machine out of service entirely.
Part Details
| Part Number | 5000027403 |
|---|---|
| Old Part Number | 0027403 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Needle Roller Bearing NK1620 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Rammer with 254mm/10 in Shoe | BS52Y | 5000007508, 5000008053, 5000008054, 5000009409, 5000007148, 5000007559, 5000007560, 5000007609 |
| Electric Rammer 230V | ES52Y | 5000007688, 5000008290 |
| Electric Rammer | ES45Y | 5000007164 |
| Vibratory Rammer with 250mm/10 in Shoe | BS45Y | 5000007137 |
| Vibratory Rammer with 152mm/6i n Shoe | BS45YA | 5000007558 |
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.
