The Wacker Neuson Standard Piston is a genuine OEM component designed for a range of Wacker Neuson BFS gasoline floor saws, BPU reversible vibratory plate compactors, and GV portable generators. Sourced directly from Wacker Neuson, part meets the exact dimensional and material specifications of the original factory part. Compatible models include the BFS 935A, BFS 935AB, BFS 914AB, BFS 940A, BFS 80, BPU 2950A, BPU 3050A, BPU 3545A, GV5000A, and GV5003A series. When your engine is burning oil, losing compression, or showing signs of wear, replacing the piston with a correct-spec OEM part restores proper engine performance across all applicable machines.
Key Features
- OEM Compression Integrity — Manufactured to the exact bore diameter and ring-groove tolerances specified for the original engine, ensuring proper compression seal on first installation.
- Drop-In Engine Fitment — Engineered to match the original connecting rod, wrist pin, and cylinder bore dimensions, so the piston installs using standard rebuild procedures without machining or modification.
- Broad Model Coverage — A single part number covers BFS floor saw, BPU reversible vibratory plate, and GV portable generator families, making it a practical stock item for mixed fleets.
- Restored Power Output — A worn or scored piston allows combustion gases to bypass into the crankcase, robbing power and increasing oil consumption; a fresh OEM piston brings engine output back to spec.
- Fuel System Safety — Correct piston fitment prevents excessive blowby, which can contaminate the air-fuel mixture and contribute to unsafe running conditions in enclosed or fuel-sensitive environments.
The piston is the reciprocating component inside the engine cylinder that converts the force of combustion into the rotational motion driving the machine. It forms a pressure seal against the cylinder wall through its piston rings, maintaining the compression needed for efficient ignition and power delivery. When a piston wears, cracks, or scores — often from inadequate lubrication or overheating — compression drops, oil consumption rises, and the engine may fail to start or run roughly under load. Replacing the piston with a correctly sized standard piston restores the engine's compression ratio and brings performance back to operating specification.
Part Details
| Part Number | 5000084648 |
|---|---|
| Old Part Number | 0084648 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Standard Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BFS 935A SAW,BASIC | BFS 935AB | 5000008910 |
| Reversible Vibratory Plate, 35 kN, 45cm/18in | BPU 3545A | 5000008783 |
| Gasoline Floor Saw, Ø 350 | BFS 80 | 5000006654 |
| BFS 914AB SAW | BFS 914AB | 5000610092 |
| 50Hz Portable Value Generator | GV5003A | 5000009352, 5000009357 |
| Vibration Plate BPU 2950A WSM | BPU 2950A | 5000007873, 5000007962 |
| BPU 3050A | BPU 3050A | 5000008763 |
| 50Hz Portable Value Generator | GV5000A | 5000009356 |
| Gasoline Floor Saw, 350 cutmat ic | BFS 935A | 5000008694 |
| Gasoline Floor Saw, 350 cutmat ic | BFS 935AL | 5000008695 |
| Petrol Floor Saw BFS 940A | BFS 940A | 5000610327 |
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.
