The Wacker Neuson 5100011618 is a genuine OEM Locking Ring designed for the RD40-130 and RD45-140 tandem roller series, as well as RC110 single-drum soil compactor variants. As a direct OEM component, it is manufactured to the same specifications as the part originally installed at the factory, ensuring correct fitment and function across all compatible machine configurations. This includes standard, cab, open-ROPS, DPF, and combination drum variants of both the RD40-130 and RD45-140 families, along with RC110 ROPS, RC110 CAB, RC110p ROPS, and RC110p CAB models. If your machine is due for service or you are seeing signs of looseness or wear at the secured assembly, part number 5100011618 is the correct OEM replacement to restore it to proper operating condition.
Key Features
- Genuine OEM Construction — Manufactured by Wacker Neuson to the same material grade and dimensional tolerances as the original, ensuring the ring seats and locks with the correct retention force for this application.
- Drop-In Replacement — Engineered to install directly in place of the original locking ring with no modification to surrounding components or mounting hardware.
- Broad RD and RC Series Fitment — Confirmed compatible with RD40-130 and RD45-140 tandem rollers across all major configurations, plus RC110 ROPS, CAB, RC110p ROPS, and RC110p CAB single-drum compactors.
- Retains Critical Assembly Integrity — A functional locking ring holds the secured component firmly in position during operation; a worn or failed ring allows unwanted movement that accelerates wear on adjacent parts.
- Correct Part for Multiple Build Variants — Covers standard, open-drum, closed-drum, DPF-equipped, and combination configurations within both roller families, making it a versatile service stock item.
A locking ring is a retention component used to secure a rotating or sliding assembly — such as a bearing, drum hub, or shaft-mounted element — in its correct axial position. It prevents the secured part from shifting or walking out of its seat under the vibration and load forces generated during compaction work. When a locking ring wears, deforms, or fails, the assembly it holds can move out of alignment, leading to accelerated wear on bearings, seals, and surrounding components, and ultimately causing more extensive mechanical damage if not addressed promptly.
Part Details
| Part Number | 5100011618 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Locking Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140c | RD45-140c | 5100047385 |
| RD40-130 | RD40-130 | 5100047382, 5100011391 |
| RD40-130c | RD40-130c | 5100047384 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD40-130o | RD40-130o | 5100047386 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392, 5100047383 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD45-140o | RD45-140o | 5100047387 |
| RC110p ROPS | RC110p ROPS | 5100067706 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RC110 CAB | RC110 CAB | 5100067705 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RC110p CAB | RC110p CAB | 5100067707 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
| RC110 ROPS | RC110 ROPS | 5100067704 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
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.
