The Bomag 05720085 Piston is a genuine OEM component designed for Bomag BPR-series reversible vibratory plates, BP-series vibratory plates, and the BW 71 E-2 walk-behind roller. As a direct OEM replacement, this piston meets Bomag's original engineering specifications, ensuring the engine performs exactly as it did from the factory. Compatible models include the BPR 30/38 D-3, BPR 25/45 D-3, BPR 25/50 D, BPR 35/42 D, BPR 35/60 D, BP 18/45 D-2, BP 25/48 D, and BW 71 E-2. When a worn or damaged piston is the issue, replacing it with part number 05720085 restores correct compression, smooth power delivery, and dependable operation across the full range of compatible machines.
Key Features
- Genuine OEM Compression Integrity — manufactured to Bomag's original dimensional tolerances, ensuring correct ring seal, cylinder wall clearance, and combustion chamber geometry specific to this engine application
- Drop-In Engine Replacement — engineered to install directly in place of the original piston with no reworking of the cylinder bore or connecting rod required
- Broad Fitment Across Plate and Roller Lines — fits the BPR 30/38 D-3, BPR 25/45 D-3, BPR 25/50 D, BPR 35/42 D, BPR 35/60 D, BP 18/45 D-2, BP 25/48 D, and BW 71 E-2, covering multiple reversible vibratory plate, forward vibratory plate, and walk-behind roller models
- Restored Engine Output — a correctly fitted piston maintains compression pressure and fuel efficiency; a worn piston causes loss of power, excessive oil consumption, and hard starting that stalls compaction work
- Verified Part Number Traceability — sourced directly from Bomag as OEM, so part number 05720085 maps exactly to the original component specification with no substitution uncertainty
The piston is a core reciprocating component inside the engine cylinder, converting the force of combustion into the mechanical motion that drives the machine's crankshaft. It works in close contact with piston rings and the cylinder wall to maintain compression and control oil consumption — if the piston is worn, scored, or cracked, compression drops, power output falls off to start reliably. Replacing a failed piston with the correct OEM part restores the engine's ability to deliver consistent, full-rated power to the exciter and drive systems of the vibratory plate or roller.
Part Details
| Part Number | 05720085 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Reversible Vibratory Plate | BPR 30/38 D-3 | 00817707, 00817709 |
| Vibratory Plate | BP 25/48 D | 00817999 |
| Walk-Behind / Light Roller | BW 71 E-2 | 00818081 |
| Reversible Vibratory Plate | BPR 35/42 D | 00818085, 00818087 |
| Reversible Vibratory Plate | BPR 35/60 D | 00818089, 00818091 |
| Reversible Vibratory Plate | BPR 25/45 D-3 | 00818269 |
| Vibratory Plate | BP 18/45 D-2 | 00818275 |
| Reversible Vibratory Plate | BPR 25/50 D | 00818405 |
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.
