The Bomag 05729187 Piston is a genuine OEM component designed for a wide range of Bomag single drum rollers and tandem rollers, including the BW 145 DH 40, BW 177 D-4, BW 177 DH-4, BW 177 DHC-4, BW 179 DH-4, BW 161 AD-4, BW 154 AD-4, and BW 151 AD-4, among others. Sourced directly from Bomag, this piston is manufactured to the same specifications as the original part it replaces, ensuring a correct fit within the engine assembly. This genuine OEM piston is the dependable choice when rebuilding or servicing the engine on your Bomag roller, delivering consistent performance across the full range of compatible machines.
Key Features
- Genuine OEM Precision — manufactured to Bomag's exact dimensional and material tolerances, ensuring proper compression ratios and correct bore-to-piston clearance for dependable engine operation
- Direct Engine Replacement — engineered to install into compatible engine assemblies without alteration, matching the original piston profile, ring grooves, and pin bore dimensions
- Broad Fitment Coverage — compatible with Bomag BW 145, BW 177, BW 179, BW 141, BW 151, BW 154, and BW 161 series single drum rollers and tandem rollers, covering part number 05729187 across multiple generation-4 variants
- Engine Integrity Restored — a worn or damaged piston causes loss of compression, increased oil consumption, and rough running; replacing it with this genuine part restores full engine output and smooth operation
- Combustion Safety — a correctly fitted piston maintains proper sealing between the combustion chamber and crankcase, preventing blow-by that can contaminate engine oil and lead to accelerated internal wear
The piston is a core reciprocating component inside the engine cylinder, transferring the force of combustion to the crankshaft via the connecting rod. It works alongside the piston rings to seal the combustion chamber, maintain compression, and control oil consumption. When a piston becomes worn, cracked, or scored, the engine loses compression and efficiency — symptoms include excessive smoke, rough idling, reduced power output, and elevated oil use — making timely replacement essential to keep the machine operating at full capacity.
Part Details
| Part Number | 05729187 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW145DH 40 | 00818323, 00818939, 00818941 |
| Single Drum Roller | BW 145 DH 40 BW 145 DH 4 | 00818325 |
| Single Drum Roller | BW 145 PDH 40 BW145 PDH 4 | 00818327 |
| Tandem Roller | BW 154 AD-4 AM | 00818447 |
| Single Drum Roller | BW 177 D-4 | 00818451 |
| Single Drum Roller | BW 177 DH-4 | 00818453, 00818543, 00824037, 00824133 |
| Single Drum Roller | BW 177 DHC-4 | 00818455 |
| Tandem Roller | BW 161 AD-4 | 00818481, 00818959, 00824003, 00824735 |
| Single Drum Roller | BW 177 PDHC-4 | 00818539 |
| Single Drum Roller | BW 177 PDH-4 | 00818541 |
| Single Drum Roller | BW 179 DH-4 | 00818545, 00824137 |
| Single Drum Roller | BW 179 DHC-4 | 00818547 |
| Single Drum Roller | BW 179 PDH-4 | 00818549, 00824139 |
| Tandem Roller | BW 141 AD-4 AM | 00818553 |
| Tandem Roller | BW 151 AD-4 AM | 00818555, 00824017 |
| Tandem Roller | BW 154 AD-4 | 00818557 |
| Tandem Roller | BW 151 AC-4 AM | 00818559, 00824025 |
| Tandem Roller | BW 141 AD-4 | 00818561, 00818955, 00818999 |
| Tandem Roller | BW 151 AD-4 | 00818563, 00818957, 00824001 |
| Tandem Roller | BW 151 AC-4 | 00818565, 00824011 |
| Tandem Roller | BW 161 AC-4 | 00818589, 00818967 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
| Tandem Roller | BW 161 ADO-4 | 00824333, 00824335 |
| Tandem Roller | BW 161 AD-4 EU-Flex | 00824393 |
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.
