The Wacker Neuson Piston is a genuine OEM Piston designed for BPU 3050A, BPU 3750Ats, and BPU 4045A US reversible vibratory plate compactors. Sourced directly from Wacker Neuson, this part carries the same specifications as the component installed at the factory, ensuring a direct fit into the engine assembly without guesswork. Confirmed compatibility spans the BPU 3050A, BPU 3050A US, BPU 3750Ats, BPU 3750Ats US, and BPU 4045A US models, making it a reliable choice for fleet operators and service technicians maintaining multiple machines.
Key Features
- OEM-Grade Bore Tolerance — Manufactured to the exact dimensional and surface-finish specifications required for correct compression and ring seal in Wacker Neuson BPU-series engines.
- Drop-In Engine Replacement — Matches original crown profile, pin bore diameter, and ring groove dimensions for straightforward installation into the existing cylinder bore.
- Broad BPU Series Coverage — A single part number covers BPU 3050A, BPU 3750Ats, and BPU 4045A US model families, simplifying parts stocking for multi-unit fleets.
- Sustained Compression Output — A correctly fitted piston maintains proper combustion pressure, preserving the engine power needed to deliver consistent compaction force plate-to-ground.
- Genuine Wacker Neuson Part — Supplied as a genuine OEM component, verified against part number 5100049524, so you receive exactly what the machine was built with.
The piston is the reciprocating component inside the engine cylinder that compresses the air-fuel mixture and transfers combustion energy to the crankshaft via the connecting rod. In a vibratory plate compactor like the BPU series, the engine must deliver steady, consistent power to drive the exciter mechanism — and a worn or damaged piston undermines that by allowing combustion gases to blow past the rings, dropping compression and reducing output. Left unaddressed, a failing piston leads to hard starting, loss of compaction force, increased oil consumption, and ultimately engine seizure.
Part Details
| Part Number | 5100049524 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BPU 3050A | BPU 3050A | 5000008763 |
| BPU 3050A US | BPU 3050A US | 5000610361 |
| BPU 3750Ats | BPU 3750Ats | 5000610408 |
| BPU3750Ats | BPU 3750Ats US | 5000610423 |
| BPU 4045A US | BPU 4045A US | 5100009663 |
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.
