The Wacker Neuson Upper Mass is a genuine OEM component designed for VP1135A and VP1135Aw series single-direction vibratory plate compactors. As a direct-from-manufacturer part, it is built to the exact tolerances required by these machines to maintain proper exciter-to-baseplate force transmission. Confirmed fitment covers the VP1135A, VP1135A US, VP1135Aw, VP1135Aw US, and VP1135Aw CN model variants. If your plate compactor is showing reduced compaction performance or unusual vibration behavior, the Upper Mass is the correct replacement to restore it to spec.
Key Features
- Genuine OEM Mass Geometry — Manufactured to the exact weight and dimensional profile specified for VP1135A and VP1135Aw plates, ensuring the exciter system delivers the correct centrifugal force output.
- Drop-In Replacement — Mounts directly to the exciter housing using the original fastener pattern, requiring no modification to the compactor frame or isolation mounts.
- Broad VP1135 Series Coverage — Compatible with VP1135A, VP1135A US, VP1135Aw, VP1135Aw US, and VP1135Aw CN variants, making it the right pick across the full VP1135 family.
- Restores Compaction Force — A worn, cracked, or unbalanced upper mass causes uneven vibration and reduced ground contact force; replacing it brings amplitude and frequency back to operating specification.
- Vibration Balance Integrity — Correct upper mass weight is critical to keeping the exciter system balanced; an incorrect or damaged mass creates bearing stress and accelerates wear throughout the vibratory assembly.
The upper mass is one of two eccentric weights that make up the exciter assembly inside a vibratory plate compactor. As the exciter shaft spins, the upper and lower masses work together to generate the centrifugal force that drives the baseplate into the ground, compacting soil, aggregate, or paving stone beneath. If the upper mass is cracked, worn, or missing, the exciter system loses its tuned balance — resulting in reduced compaction depth, increased vibration transmitted to the operator handle, and accelerated wear on exciter bearings and seals. Replacing it with the correct OEM part restores the machine's designed compaction output and protects the surrounding drivetrain components.
Part Details
| Part Number | 5100037176 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Upper Mass |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| VP1135A | VP1135A | 5100029066 |
| VP1135A | VP1135A US | 5100029064 |
| VP1135Aw | VP1135Aw US | 5100029063 |
| VP1135Aw | VP1135Aw | 5100029065 |
| Vibration Plate | VP1135Aw CN | 5100039666 |
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.
