The Wacker Neuson Switch Assembly is a genuine OEM component designed for a broad range of Wacker Neuson compaction and cutting equipment, including MP15 and MP70 Single Direction Plates, MPU 29 Reversible Plates, MFS12 and MFS14 Floor Saws, and MD3.5 Modular Internal Vibrators. As a factory-sourced part, the is built to the exact electrical specifications of the original, ensuring the switch operates with the correct actuation force, contact rating, and circuit behavior required by each covered machine. This assembly is a direct, plug-in replacement that maintains the integrity of the machine's control circuit without the need for wiring adaptations. Confirm your model number against the fitment list before ordering to ensure this is the correct switch assembly for your unit.
Key Features
- Correct Contact Rating and Actuation Spec — Manufactured to OEM electrical tolerances, so switching load, contact resistance, and trigger feel match the original assembly exactly.
- Direct Plug-In Replacement — Connector terminals and mounting geometry match the original housing, allowing a straight swap into the existing wiring harness and bracket.
- Wide Model Coverage — A single part number covers MP15 and MP70 Single Direction Plates, MPU 29 Reversible Plates, MFS12 and MFS14 Floor Saws, and MD3.5 Modular Internal Vibrators.
- Restores Reliable Operator Control — A worn or failed switch assembly can cause intermittent starts, unresponsive controls, or complete machine shutdown; replacing it restores full, predictable operator input.
- Electrical Safety Compliance — As a safety-critical control component, using a genuine OEM switch assembly ensures the circuit interruption and overload characteristics meet the original design requirements for operator protection.
- Genuine Wacker Neuson OEM Part — Sourced directly through the Wacker Neuson parts network under part number 5000403678, with full traceability to the original equipment specification.
A switch assembly is the primary electrical control interface between the operator and the machine's motor or engine circuit. It opens and closes the power circuit on demand, and in many compaction and cutting applications it also incorporates overload protection or safety interlock functions. When a switch assembly begins to fail, symptoms typically include intermittent operation, a machine that won't start or won't shut down cleanly, or a trigger and handle that feel inconsistent — all of which compromise both productivity and operator safety on the worksite.
Part Details
| Part Number | 5000403678 |
|---|---|
| Old Part Number | 0403678 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Switch Assembly |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| MP15 | MP15 | 5000630131, 5000630227 |
| Modular Internal Vibrators | MD3.5 | 5000630242 |
| Single Direction Plate | MP70 | 5000630243 |
| Reversible Plates | MPU 29 | 5000630141, 5000630228 |
| Floor Saw | MFS14 | 5000630186, 5000630221 |
| Floor Saw | MFSX14 | 5000630246 |
| Floor Saw | MFS12 | 5000630187, 5000630220 |
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.
