The Bomag 05546556 Piston is a genuine OEM piston designed for Bomag BC-series refuse/landfill compactors and soil compactors, including the BC 772 RB, BC 672 RB, BC 572 RB-2, BC 772 EB-2, BC 672 EB-2, BC 772 EB-4, and their generation variants. Sourced directly from Bomag, this piston is manufactured to the same exacting standards as the original component installed at the factory. This part fits across the BC 572, BC 672, and BC 772 model lines — spanning multiple generations of both refuse/landfill compactors and soil compactors — making it a dependable choice when it's time to restore engine performance on your machine.
Key Features
- Genuine OEM Precision — manufactured to exact bore diameter, crown geometry, and ring-groove tolerances specified for the BC-series engine, ensuring correct compression and combustion performance
- Direct-Fit Replacement — matches the original piston's pin bore dimensions and skirt profile for a drop-in installation without modification to the cylinder or connecting rod
- Broad BC-Series Coverage — fits BC 772 RB, BC 672 RB, BC 572 RB-2, BC 772 RB-2, BC 672 RB-2, BC 772 RB-3, BC 672 RB-3, BC 772 RB-4, BC 672 RB-4, BC 772 EB-2, BC 672 EB-2, and BC 772 EB-4 machines
- Restored Engine Output — a correctly functioning piston maintains proper compression ratios, keeping the engine delivering the power and torque these heavy compactors demand in landfill and soil compaction work
- Combustion Integrity — worn or damaged pistons lead to blow-by, oil consumption, and loss of compression; replacing with an OEM-spec piston eliminates these issues and protects cylinder wall and ring service life
The piston is a core reciprocating component inside the engine's cylinder, converting combustion pressure into the mechanical force that drives the crankshaft. It seals the combustion chamber through its piston rings, maintains compression, and transfers heat away from the combustion event into the cylinder walls and cooling system. When a piston wears, cracks, or suffers damage from detonation, the engine loses compression, burns oil, and produces less usable power — symptoms that worsen quickly and can lead to full engine failure if left unaddressed. Replacing a failed or worn piston with a genuine Bomag part number 05546556 restores the cylinder to proper operating condition and protects the surrounding engine components from further damage.
Part Details
| Part Number | 05546556 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Refuse / Landfill Compactor | BC 772 RB | 00817406 |
| Refuse / Landfill Compactor | BC 672 RB | 00817909 |
| Refuse / Landfill Compactor | BC 772 RB-2 | 00818179, 00818885, 00818933, 00824639 |
| Refuse / Landfill Compactor | BC 672 RB-2 | 00818181, 00818887, 00818931, 00824641 |
| Refuse / Landfill Compactor | BC 572 RB-2 | 00818183, 00818893, 00824257 |
| Soil Compactor | BC 772 EB-2 | 00818187, 00818897 |
| Soil Compactor | BC 672 EB-2 | 00818189 |
| Refuse / Landfill Compactor | BC 772 RB-3 | 00824101 |
| Refuse / Landfill Compactor | BC 672 RB-3 | 00824259 |
| Refuse / Landfill Compactor | BC 772 RB-4 | 00824355 |
| Refuse / Landfill Compactor | BC 672 RB-4 | 00824531 |
| Soil Compactor | BC 772 EB-4 | 00824857 |
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.
