The Wacker Neuson Governing Spring is a genuine OEM component designed for the MP20 and MP12 single direction plate compactors. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original component it replaces, ensuring consistent, dependable performance in the field. If you're servicing an MP20 or MP12 plate compactor, verifying the part number against your machine's serial plate will confirm a correct match before ordering.
Key Features
- Genuine OEM Spring Tension Integrity — Manufactured to the precise tension and load specifications Wacker Neuson requires for proper engine governing behavior, not an approximation.
- Direct Drop-In Replacement — Engineered to seat and connect exactly as the original governing spring, with no rework or adaptation needed during installation.
- Confirmed Fitment for MP20 and MP12 — Verified compatible with the MP20 (5000630379) and MP12 (5000630380) single direction plate compactors.
- Stable Engine Speed Control — A properly functioning governing spring holds engine RPM within the correct operating range under load, keeping compaction output consistent across varying surface conditions.
- Prevents Erratic Engine Behavior — A worn or fatigued governing spring causes hunting, surging, or over-revving — replacing it promptly restores smooth, controlled operation.
The governing spring is a core component of the engine's mechanical speed-governing system. It works against the centrifugal force generated by the governor flyweights, maintaining a set balance that controls fuel delivery and keeps engine RPM stable under changing loads. When this spring weakens or breaks, the governor loses its ability to regulate speed accurately, resulting in engine hunting, uncontrolled RPM swings, or a machine that won't hold a steady idle — all of which directly affect compaction quality and operator control.
Part Details
| Part Number | 5000408511 |
|---|---|
| Old Part Number | 0408511 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Governing Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Direction Plates | MP20 | 5000630379 |
| Single Direction Plates | MP12 | 5000630380 |
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.
