The Bomag 05728783 Piston Ring Set is a genuine OEM component designed for the BMP 851 trench compactor. Sourced directly from Bomag, this piston ring set delivers the exact material grades, ring profiles, and dimensional tolerances specified for the engine fitted to the BMP 851. When worn rings are letting combustion gases bypass the piston, swapping in this OEM set restores compression and gets your machine back to full working capacity.
Key Features
- OEM Combustion Seal Integrity — manufactured to Bomag's exact ring gap tolerances and material specifications, ensuring consistent compression and oil control in the BMP 851 engine
- Direct Engine Replacement — engineered to drop into the cylinder bore of the BMP 851 without reworking ring lands or grooves, following standard engine rebuild procedures
- Confirmed BMP 851 Fitment — verified for the BMP 851 trench compactor, so you can order with confidence knowing this is the correct set for your machine
- Restored Engine Output — deteriorated piston rings cause blow-by, oil burning, and loss of compaction force; a fresh OEM ring set brings cylinder pressure back to spec and keeps the compactor running at full capacity
- Fuel Efficiency Protection — worn rings allow uncontrolled oil consumption and fuel dilution; correct ring sealing keeps combustion efficient and protects downstream engine components from accelerated wear
A piston ring set seals the gap between the piston and the cylinder wall, serving three critical roles: containing combustion pressure to generate power, scraping excess oil back into the sump to prevent burning, and transferring heat from the piston into the cylinder wall. On a trench compactor like the BMP 851, the engine works under sustained load in confined, dusty environments, which accelerates ring wear over time. When rings lose their seal, the engine suffers from reduced compression, increased oil consumption, blue exhaust smoke, and ultimately a loss of the hydraulic power needed to drive the compaction drums — making timely ring replacement essential to keeping the machine productive.
Part Details
| Part Number | 05728783 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Piston Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Trench Compactor | BMP 851 | 00815200, 00817959, 00818499 |
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.
