The Wacker Neuson 5100012955 is a genuine OEM Locking Washer designed for the RD series tandem rollers and RC series single-drum soil compactors. This fastener component is a direct OEM replacement sourced to the original specification, covering a broad range of models across the RD18, RD24, RD27, RD28, RD40, RD45, RC50, RC70, and RC110 families. Verified compatibility spans standard, cab, ROPS, DPF, open-drum, combination, and electric-hybrid variants within those series. Part number 5100012955 is the correct OEM reference to confirm your order against the machine's parts diagram before purchasing.
Key Features
- Genuine OEM Locking Security — Manufactured to Wacker Neuson's original torque-retention specification, ensuring the washer delivers the clamping and anti-rotation performance the fastener joint was engineered around.
- Drop-In Replacement — Matches the original bore diameter, outer profile, and tooth geometry of the factory washer, allowing direct installation without modification to mating hardware.
- Broad RD and RC Series Coverage — A single part number supports the RD18, RD24, RD27, RD28, RD40, and RD45 tandem roller families as well as the RC50, RC70, and RC110 single-drum soil compactor series, including cab, ROPS, DPF, and electric variants.
- Fastener Joint Integrity — A correctly functioning locking washer prevents fastener back-off under the continuous vibration loads generated during compaction cycles; a missing or worn washer can allow critical bolted connections to loosen in service.
- OEM Part Number Traceability — Carries Wacker Neuson part number 5100012955 for straightforward cross-referencing against factory parts documentation and service manuals.
A locking washer is a small but essential fastening component placed beneath a nut or bolt head to resist loosening caused by vibration, dynamic loads, or thermal cycling. On compaction equipment such as tandem rollers and single-drum soil compactors, virtually every bolted assembly is exposed to sustained vibration, making the locking washer's anti-rotation function critical to keeping joints secure. When a locking washer is damaged, deformed, or missing, the fastener it supports can gradually back out, leading to loose assemblies, accelerated wear on surrounding components, and potential structural failure at the joint if left unaddressed.
Part Details
| Part Number | 5100012955 |
|---|---|
| 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 |
| RC70 | RC70 DPF CAB | 5100064259 |
| RD24-100c | RD24-100c | 5100047376 |
| RD28e-120c | RD28-120ce | 5100066734 |
| RC110p CAB | RC110p CAB | 5100067707 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| RD24e-100c | RD24-100ce | 5100066733 |
| RC70vo | RC70vo | 5100047412 |
| 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 |
| RD18-100c | RD18-100c | 5100055776, 5100047362 |
| RD45-140 | RD45-140 | 5100047383, 5100011392 |
| 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 |
| RD28-120o | RD28-120o | 5100047379 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RC70 US | RC70 US | 5100047415, 5100027577 |
| RC110P | RC110P | 5100030675 |
| Compactor RC110p US CAB | RC110p US CAB | 5100064271 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD28-120o DPF | RD28-120o DPF | 5100047394 |
| 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 |
| RD28e-120o | RD28-120oe | 5100066736 |
| Single drum soil compactor RC50P | RC50P | 5100021296 |
| 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 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| 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 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100055775, 5100047361 |
| 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.
