The Bomag 05710066 Piston Ring Set is a genuine OEM component designed for the BW 142 D-2 single drum roller and a broad range of Bomag tandem rollers, including the BW 100 AC-3, BW 100 AD-3, BW 120 AC-3, BW 120 AD-3, BW 125 ACH, BW 125 ADH, BW 135 AC, BW 135 AD, BW 138 AC, BW 138 AD, and BW 138-AD. Sourced directly from Bomag, this piston ring set carries the exact OEM specifications your engine requires for proper compression, oil control, and long service life. Each ring in the set is manufactured to match original tolerances, ensuring the same performance as the rings installed at the factory. When you need confirmed fitment and OEM-grade quality, part number 05710066 is the correct choice for these machines.
Key Features
- OEM Compression and Oil-Control Precision — manufactured to Bomag's exact ring gap, tension, and surface-finish specifications, delivering the compression seal and oil regulation your engine depends on
- Complete Set, Direct Engine Fit — supplied as a full piston ring set so all rings are replaced together, maintaining even cylinder sealing with no mixing of worn and new components
- Broad Bomag Roller Coverage — confirmed fit for the BW 142 D-2 single drum roller and tandem rollers including the BW 100, BW 120, BW 125, BW 135, and BW 138 series
- Restored Engine Power and Efficiency — worn or broken piston rings cause blow-by, loss of compression, excessive oil consumption, and reduced machine output; this set restores the sealing performance that keeps the engine running at full capacity
- Genuine OEM Confidence — as an authentic Bomag part, the 05710066 Piston Ring Set meets the same material and dimensional standards as the original, with no guesswork on compatibility
Piston rings seal the gap between the piston and the cylinder wall, performing two critical jobs: containing combustion pressure so the engine produces full power, and scraping excess oil back down the cylinder to prevent oil burning. A compression ring failure allows combustion gases to escape past the piston — a condition known as blow-by — which reduces power output, increases fuel consumption, and can contaminate the crankcase oil. Worn oil control rings let lubricant enter the combustion chamber, causing blue exhaust smoke and accelerated engine wear. Replacing a degraded set promptly with a correctly sized OEM piston ring set is one of the most direct ways to restore engine health and protect the rest of the engine from secondary damage.
Part Details
| Part Number | 05710066 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Piston Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 142 D-2 | 00810077 |
| Tandem Roller | BW 138 AD | 00810105, 00810191, 00817473 |
| Tandem Roller | BW 135 AD | 00810120, 00817471 |
| Tandem Roller | BW 100 AC-3 | 00817457 |
| Tandem Roller | BW 100 AD-3 | 00817458 |
| Tandem Roller | BW 120 AC-3 | 00817462 |
| Tandem Roller | BW 120 AD-3 | 00817463 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 138 AC | 00817472 |
| Tandem Roller | BW120AD 3 | 00817571 |
| Tandem Roller | BW 138-AD | 00817572 |
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.
