The Wacker Neuson Washer is a genuine OEM component designed for the RC50, RC70, and RC110 series single drum soil compactors, including standard, P, VO, and CAB variants across both US and international configurations. As a factory-sourced part, the is manufactured to the same specifications as the original, ensuring a direct, correct-fit replacement with no guesswork on compatibility. This washer covers an extensive range of RC series machines — from the compact RC50 through to the larger RC110 and RC110P — making it a go-to stocking part for fleet operators and service technicians working across multiple compactor models. Sourcing a genuine OEM washer means the hardware functions exactly as intended, maintaining the integrity of the assembly it supports.
Key Features
- Genuine OEM Material Grade — Manufactured to Wacker Neuson's original hardness and dimensional tolerances, so the washer seats, clamps, and distributes load the same way the original did from the factory.
- Drop-In Replacement — Matches the original hole diameter, outer diameter, and thickness exactly, slotting directly into the assembly without rework or shimming.
- Broad RC Series Coverage — A single part number covering RC50, RC50P, RC70, RC70P, RC70VO, RC110, and RC110P compactors in both US and international specifications, including ROPS and CAB configurations.
- Protects Mating Surfaces — A correctly specified washer distributes fastener load evenly across the joint face; an undersized or worn washer can allow fasteners to loosen, pull through, or cause surface damage over time.
- Verified Part Number — Ordered as Wacker Neuson 5100012940 directly against the OEM parts schema, removing the risk of receiving a mismatched or incorrect-grade hardware item.
A washer is a flat disc placed under a fastener — such as a bolt head or nut — to spread the clamping load over a wider surface area, prevent the fastener from embedding into or damaging the material beneath it, and help maintain consistent torque retention over time. In heavy compaction equipment like the RC series, where constant vibration is a core part of machine operation, correctly specified washers play a critical role in keeping bolted joints secure under repeated stress cycles. When a washer wears thin, deforms, or is replaced with an incorrect grade, the fastener joint becomes less stable, which can lead to loosening, accelerated wear on the mating components, and potential assembly failure.
Part Details
| Part Number | 5100012940 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single drum soil compactor RC50 | RC50 | 5100021295, 5100047388 |
| Single drum soil compactor RC50P | RC50P | 5100021296 |
| Single drum soil compactor RC70 | RC70 | 5100021297, 5100047410 |
| Single drum soil compactor RC70P | RC70P | 5100021298 |
| Single drum soil compactor RC70VO | RC70VO | 5100021299 |
| RC50 Single Drum Soil Compactor | RC50 US | 5100027575, 5100047413 |
| RC50p Single Drum Soil Compactor | RC50p US | 5100027576, 5100047414 |
| RC70 Single Drum Soil Compactor | RC70 US | 5100027577, 5100047415 |
| Vibration Roller | RC70 VO US | 5100027578 |
| RC70p Single Drum Soil Compactor | RC70p US | 5100027579, 5100047416 |
| RC110 | RC110 | 5100030674 |
| RC110P | RC110P | 5100030675 |
| RC50p | RC50p | 5100047389 |
| RC70p | RC70p | 5100047411 |
| RC70vo | RC70vo | 5100047412 |
| Compactor RC110 US Rops | RC110 US Rops | 5100056461 |
| Compactor RC110p US Rops | RC110p US Rops | 5100056462 |
| Compactor RC110 US CAB | RC110 US CAB | 5100064270 |
| Compactor RC110p US CAB | RC110p US CAB | 5100064271 |
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.