The Bomag 05744845 Piston with Piston Rings is a genuine OEM component designed for the BP 18/45 D-2 vibratory plate, BPR 30/38 D-3 reversible vibratory plate, and BT 80 D tamper. Sourced directly from Bomag, this piston assembly matches the original dimensions and ring configuration specified for these machines, ensuring a correct, drop-in installation. Verified fitment across all three equipment classes means contractors can order with confidence, knowing part number 05744845 is the right choice for their machine. Whether restoring a diesel vibratory plate or a diesel-powered tamper, this assembly brings engine internals back to the tolerances needed for consistent, productive output.
Key Features
- OEM Compression Integrity — genuine Bomag manufacturing ensures the piston diameter, crown geometry, and ring groove dimensions match the original engine specifications exactly, maintaining proper cylinder pressure.
- Complete Piston Assembly — supplied with piston rings already included, so the engine can be rebuilt without sourcing rings separately and with no guesswork on ring specification or gap sizing.
- Confirmed Fitment — verified for the BP 18/45 D-2 vibratory plate, BPR 30/38 D-3 reversible vibratory plate, and BT 80 D tamper, covering both plate compactor and tamper applications in a single part number.
- Restored Engine Power — a worn piston or degraded rings cause compression loss, hard starting, excessive oil consumption, and loss of compaction force; replacing this assembly restores full engine output and reliable cold starts.
- Fuel System Protection — correctly seated piston rings prevent oil blow-by past the combustion chamber, protecting the fuel and air intake systems from contamination and extending overall engine service life.
The piston is the reciprocating heart of a small diesel engine, converting combustion pressure into the crankshaft rotation that drives the machine. The piston rings seal the combustion chamber against the cylinder wall, controlling oil consumption and maintaining the compression pressure needed for ignition and full power output. When the rings wear or the piston itself becomes scored or out-of-round, compression drops sharply — the engine becomes difficult to start, loses pulling power, and burns excessive oil. Replacing the piston and rings together as a matched assembly restores the cylinder seal and brings engine performance back to the level these Bomag compaction machines depend on for effective, consistent ground compaction.
Part Details
| Part Number | 05744845 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Piston with Piston Rings |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Plate | BP 18/45 D-2 | 00817417 |
| Tamper | BT 80 D | 00817455 |
| Reversible Vibratory Plate | BPR 30/38 D-3 | 00817436 |
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.
