The Wacker Neuson Pendulum Joint is a genuine OEM component designed for the RD18-80, RD18-100, and RD18-100 C tandem roller series. As a direct OEM replacement, part is manufactured to the same standards as the original, ensuring proper articulation and fit within the machine. This pendulum joint is compatible across a broad range of RD18 series configurations, including US and SE variants, as well as the updated.3 series models. If your Wacker Neuson RD18 roller is showing signs of wear or looseness at the articulation point, this is the correct replacement part to restore proper operation.
Key Features
- Genuine OEM Articulation Geometry — Manufactured to OEM specification, this pendulum joint maintains the precise pivot geometry required for smooth, controlled steering on Wacker Neuson RD18 tandem rollers.
- Direct Drop-In Replacement — Engineered to match the original mounting points and connection interfaces, this part installs without modification into all compatible RD18 series machines.
- Broad RD18 Series Coverage — Fits RD18-80, RD18-100, and RD18-100 C variants, including US, SE, and .3 series configurations across multiple production runs.
- Restores Full Steering Response — A worn or failed pendulum joint causes imprecise articulation and uneven compaction passes; replacing it with 5100011856 restores full directional control and operator confidence.
- Long-Term Structural Integrity — Built to withstand the continuous stress and vibration loads generated by tandem roller operation, helping maintain consistent performance across compaction applications.
The pendulum joint is the articulation pivot that connects the front and rear sections of a tandem roller, allowing the machine to steer by bending at its center rather than turning its wheels. On machines like the Wacker Neuson RD18 series, this joint absorbs significant steering force and vibration during compaction work, making it a high-wear component over time. When the pendulum joint wears or fails, operators will notice sloppy steering, uneven tracking, or excessive play at the articulation point — all of which compromise compaction quality and machine control.
Part Details
| Part Number | 5100011856 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pendulum Joint |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 Tandem Roller | RD18-80 | 5100011382, 5100047360, 5100055774 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100047361, 5100055775 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD 18-100 C | RD18-100c | 5100047362, 5100055776 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD18 | RD18-100.3 | 5100055947 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
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.
