The Wacker Neuson 5100012966 is a genuine OEM Locking Washer designed for the RD series tandem rollers and RC series single-drum soil compactors. This part covers an extensive range of machines including the RD18, RD24, RD27, RD28, RD40, and RD45 tandem roller families, as well as the RC50, RC70, and RC110 single-drum compactor series. As a genuine Wacker Neuson OEM component, part 5100012966 is manufactured to the same specifications as the original, ensuring a direct, correct fit within the assembly. Keeping a secure fastening stack is critical on heavy compaction equipment, and the genuine OEM Locking Washer delivers exactly that.
Key Features
- Genuine OEM Retention Integrity — Manufactured to Wacker Neuson's original material and dimensional specification, providing consistent locking force under the vibration loads generated by compaction equipment.
- Direct Drop-In Installation — Matches the original washer profile and bore exactly, seating correctly against mating fasteners without modification or shimming.
- Broad RD and RC Series Coverage — A single part number spans the full RD18 through RD45 tandem roller range and the RC50, RC70, and RC110 single-drum soil compactor families across standard, cab, ROPS, DPF, and electric variants.
- Vibration-Resistant Fastener Security — Locking washers on compaction equipment resist the continuous vibration that causes standard fasteners to back out; a worn or missing washer can allow joint loosening, leading to misalignment or component damage.
- Fastener Joint Safety — On roller and compactor assemblies subject to high-cycle vibration, maintaining proper fastener preload is essential to structural integrity; replacing worn locking washers as part of routine service keeps critical joints within design tolerance.
A locking washer is a hardened ring placed beneath a nut or bolt head to prevent the fastener from loosening under vibration and dynamic loading. On tandem rollers and single-drum soil compactors, where drums and drive components generate continuous cyclic forces, locking washers are essential to keeping bolted joints at their designed clamping load. When a locking washer flattens, cracks, or is missing entirely, fasteners can back out progressively, creating play in assemblies that should be rigid and potentially causing accelerated wear or component failure.
Part Details
| Part Number | 5100012966 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Locking Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RC110p ROPS | RC110p ROPS | 5100067706 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RC50 | RC50 | 5100047388, 5100021295 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD40-130 | RD40-130 | 5100047382, 5100011391 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| Compactor RC110 US CAB | RC110 US CAB | 5100064270 |
| RD24-100c | RD24-100c | 5100047376 |
| RC70 | RC70 DPF CAB | 5100064259 |
| RD28e-120c | RD28-120ce | 5100066734 |
| RC70vo | RC70vo | 5100047412 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| RD24e-100c | RD24-100ce | 5100066733 |
| RC110p CAB | RC110p CAB | 5100067707 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD24-100 | RD24-100 | 5100047374, 5100011385 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RC70 | RC70 | 5100047410, 5100021297 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RC70p | RC70p | 5100047411 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RC70 | RC70 DPF ROPS | 5100064260 |
| RD28-120c DPF | RD28-120c DPF | 5100047392 |
| RD40-130c | RD40-130c | 5100047384 |
| RD24-100c DPF | RD24-100c DPF | 5100047391 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| RC50p | RC50p | 5100047389 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
| RD28-120c | RD28-120c | 5100047377 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RC50 Single Drum Soil Compactor | RC50 US | 5100027575, 5100047413 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RC110 | RC110 | 5100030674 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD40-130o | RD40-130o | 5100047386 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RC50p US | RC50p US | 5100047414, 5100027576 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD18-80 | RD18-80 | 5100055774, 5100011382, 5100047360 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD28-120 | RD28-120 | 5100047375 |
| RD45-140 | RD45-140 | 5100047383, 5100011392 |
| RD18-100c | RD18-100c | 5100055776, 5100047362 |
| RC70p | RC70p DPF CAB | 5100064261 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD28-120 DPF | RD28-120 DPF | 5100047390 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD28-120o | RD28-120o | 5100047379 |
| RC70 US | RC70 US | 5100047415, 5100027577 |
| RC110P | RC110P | 5100030675 |
| Compactor RC110p US CAB | RC110p US CAB | 5100064271 |
| RD28-120o DPF | RD28-120o DPF | 5100047394 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD24e-100o | RD24-100oe | 5100066735 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD24-100o DPF | RD24-100o DPF | 5100047393 |
| RC50p | RC50p DPF ROPS | 5100064258 |
| Single drum soil compactor RC70P | RC70P | 5100021298 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| Single drum soil compactor RC50P | RC50P | 5100021296 |
| RD28e-120o | RD28-120oe | 5100066736 |
| RD24-100o | RD24-100o | 5100047378 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| Single drum soil compactor RC70VO | RC70VO | 5100021299 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| RD45-140c | RD45-140c | 5100047385 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD24e-100 | RD24-100e | 5100066731 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
| RD28e-120 | RD28-120e | 5100066732 |
| RC70p Single Drum Soil Compactor | RC70p US | 5100027579, 5100047416 |
| Compactor RC110 US Rops | RC110 US Rops | 5100056461 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RC110 ROPS | RC110 ROPS | 5100067704 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100055775, 5100047361 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| Compactor RC110p US Rops | RC110p US Rops | 5100056462 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD45-140o | RD45-140o | 5100047387 |
| RC110 CAB | RC110 CAB | 5100067705 |
| RD24-100 DPF | RD24-100 DPF | 5100047380 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RC50p | RC50p DPF CAB | 5100064257 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RC70vo | RC70vo DPF CAB | 5100064263 |
| RC50 | RC50 DPF CAB | 5100064255 |
| RD18 | RD18-100.3 | 5100055947 |
| RC70p | RC70p DPF ROPS | 5100064262 |
| Vibration Roller | RC70 VO US | 5100027578 |
| RC50 | RC50 DPF ROPS | 5100064256 |
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.
