The Bomag 05815102 Piston Kit is a genuine OEM component designed for Bomag single drum rollers and tandem rollers across multiple BW-series models. Sourced directly from Bomag, this piston kit delivers the exact tolerances and materials specified for the original engine build. It is confirmed to fit BW 177 D-3, BW 177 D-4, BW 177 D-50, BW 145 D-3, BW 141 AD-2, BW 151 AD-2, BW 151 AC-2, and additional BW-series machines listed in the fitment data. When worn pistons go unaddressed, engines lose compression, burn oil, and deliver reduced compaction output — this kit puts the engine back to specification.
Key Features
- OEM-Specified Piston Geometry — manufactured to the exact bore diameter, ring groove depth, and crown profile specified by Bomag for these engines, ensuring proper compression and combustion efficiency
- Direct Engine Drop-In — engineered to install into the original cylinder bore without re-machining or custom fitting, using the same pin dimensions and ring pack configuration as the factory assembly
- Broad BW-Series Coverage — fits BW 177 D-3, BW 177 D-4, BW 177 D-50, BW 177 D-40, BW 145 D-3, BW 145 D-40, BW 141 AD-2, BW 151 AD-2, BW 151 AC-2, and related BW single drum and tandem rollers
- Compression Restoration — replaces worn or scored pistons that cause oil consumption, loss of power, and hard starting, bringing the engine back to its rated output for consistent compaction performance
- Genuine Bomag Part — supplied under part number 05815102 as an authentic OEM component, backed by Bomag's manufacturing standards for durability in demanding roller applications
The piston is the engine's primary compression and power-transfer component, moving within the cylinder bore to compress the air-fuel mixture and convert combustion force into crankshaft rotation. In a compaction roller, consistent engine power directly affects drum frequency and compaction output — a worn or damaged piston causes misfires, low compression, excessive oil burning, and reduced machine performance. Replacing the piston assembly with a correctly specified kit restores the engine's compression ratio and protects the cylinder bore and rings from secondary damage caused by a failed piston.
Part Details
| Part Number | 05815102 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Piston Kit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 177 D-3 | 00815310, 00817503 |
| Tandem Roller | BW 141 AD-2 | 00817474 |
| Single Drum Roller | BW 145 D-3 | 00817479, 00817637 |
| Tandem Roller | BW 151 AC-2 | 00817485 |
| Tandem Roller | BW 151 AD-2 | 00817486 |
| Tandem Roller | BW141AD 2 | 00817573 |
| Single Drum Roller | BW145D 3 | 00817576, 00817927 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Single Drum Roller | BW 177 D-3 USA | 00817675 |
| Single Drum Roller | BW177D 3 | 00817863 |
| Single Drum Roller | BW 177 D-40 | 00818165, 00818525 |
| Single Drum Roller | BW145DH 40 | 00818323 |
| Single Drum Roller | BW 177 D-4 | 00818451 |
| Single Drum Roller | BW177D 40 | 00818579 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW 177 D-50 | 00824087 |
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.
