The Wacker Neuson Wire Harness is a genuine OEM Wire Harness designed for RD40-130 and RD45-140 series tandem rollers. Sourced directly from Wacker Neuson, this is the same harness installed at the factory — ensuring correct connector placement, wire gauge, and routing for a straightforward installation. Part number covers a broad range of RD40-130 and RD45-140 variants, including standard, C, and O configurations across multiple build series.
Key Features
- OEM-Correct Wiring Spec — Manufactured to Wacker Neuson's original circuit design, with matched connector types and wire gauges that meet the electrical demands of the RD-series roller platform.
- Drop-In Connector Compatibility — Each connector and terminal position matches the original harness layout, allowing direct plug-in replacement without splicing or adapter work.
- Wide RD-Series Coverage — Fits RD40-130 and RD45-140 tandem rollers across standard, C, and O variants, as well as .3-series builds, covering multiple machine configurations with a single part number.
- Protects Electrical System Integrity — A damaged or degraded wire harness can cause intermittent faults, sensor failures, or total electrical shutdown; replacing with an OEM harness restores full system reliability.
- Electrical Safety Compliance — As a safety-critical electrical component, using the genuine OEM harness ensures proper insulation ratings and circuit protection are maintained, reducing the risk of shorts or control system faults on a live machine.
The wire harness is the central electrical backbone of the roller, bundling and routing power and signal circuits between the engine, controls, sensors, and operator panel. It keeps every electrical system on the machine communicating correctly — from ignition and throttle control to compaction monitoring. When a harness degrades through wear, vibration damage, or moisture ingress, the result can range from erratic instrument readings and fault codes to complete loss of machine function, making prompt replacement essential for safe and productive operation.
Part Details
| Part Number | 5100012578 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Wire Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| 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.
