The Wacker Neuson Relay Socket is a genuine OEM Relay Socket designed for the RD24-100, RD27-120, RD40-130, and RD45-140 series Tandem Rollers, including standard, C, and O variants across multiple build generations. As a direct-from-manufacturer component, the delivers the exact electrical interface geometry, contact configuration, and housing tolerances specified for these machines at the time of production. Compatibility spans a broad range of RD-series roller configurations, so whether you're maintaining an older unit or a current-generation model, this part is engineered to drop straight into the existing relay mounting position. Sourcing the correct OEM socket ensures the relay seated within it operates within its intended electrical parameters — protecting both the relay and the circuits it controls.
Key Features
- Correct Contact Geometry: — Manufactured to OEM specification, this socket delivers the precise contact spacing and terminal depth required for proper relay seating and uninterrupted electrical continuity.
- Direct Mounting Replacement: — Matches the original housing footprint and locking tab configuration, allowing installation directly into the existing relay bracket without adaptation.
- Broad RD-Series Compatibility: — Fits RD24-100, RD27-120, RD40-130, and RD45-140 Tandem Rollers across standard, C, and O variants and multiple production series, covering a wide installed base of Wacker Neuson compaction equipment.
- Protects Downstream Electrical Components: — A correctly fitted relay socket maintains secure terminal contact, preventing arcing, voltage drop, and the relay chatter that can damage connected control circuits over time.
- Electrical Safety Compliance: — Using the genuine OEM socket ensures the relay assembly meets the original insulation and current-handling ratings for the machine's electrical system — critical in construction environments where moisture and vibration place constant stress on electrical connections.
A relay socket is the fixed mounting point that holds a plug-in relay in position and connects it to the machine's wiring harness. It carries switched current between the relay's terminals and the circuits it controls — such as lighting, hydraulic solenoids, or engine management functions — making solid, corrosion-free contact essential to consistent machine operation. When a relay socket wears, cracks, or develops corroded terminals, the relay can seat loosely or make intermittent contact, causing erratic electrical behavior, failed starts, or unresponsive controls that are often misdiagnosed as relay or wiring faults rather than a socket issue.
Part Details
| Part Number | 5100012910 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Relay Socket |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 Tandem Roller | RD24-100 | 5100011385 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD40-130 Tandem Roller | RD40-130 | 5100011391 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
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.
