Piston
MAN Piston 51.02511-7221
Genuine MAN piston for D2840 / D2842 / D2848 marine diesel engine family, the part that carries combustion pressure down the connecting rod to the crankshaft.
Technical drawing from the MAN parts catalogue. The actual part may differ in appearance.
Piston51.02511-7221
Engine familyD2840 / D2842 / D2848
Previous part no.—
Weight3.708 kg
Dimensions (W×L×H)18 × 20 × 23 cm
Country of originGermany
Warranty2 years
Genuine OEM · dispatched same day
Components
Parts on the MAN piston catalogue page for this engine (reference 51.#0010-0343). Item 1 is the piston supplied here, with its standard and undersize grades; the remaining items are the related rings, pin, connecting rod and bearings from the same group, available on request.
| Pos | Item number | Name / Remarks | Qty |
|---|---|---|---|
| 1 | 51.02511-7221 | engine piston kit 128,00 MM normal | 10 |
| 1 | 51.02511-7222 | stationary engine piston assembly undersize 0,20 mm 128,00 MM | NB |
| 1 | 51.02511-7223 | stationary engine piston assembly undersize 0,40 mm 128,00 MM | NB |
| 2 | 51.02503-0752 | keystone ring | 10 |
| 3 | 51.02503-0554 | taper face compression ring | 10 |
| 4 | 51.02503-0806 | bevelled oil scraper ring | 10 |
| 5 | 51.02502-0107 | piston pin | 10 |
| 6 | 51.90810-0035 | snap ring 50,5X2-FST | 20 |
Specifications
| Part number | 51.02511-7221 |
| Part no. (other formats) | 51.02511.7221 · 51025117221 |
| Description | Engine piston kit 128.00 mm normal |
| Engine family | D2840 / D2842 / D2848 |
| Engine / application |
|
| Previous part no. | — |
| Weight (kg) | 3.708 |
| Dimensions W×L×H (cm) | 18 × 20 × 23 |
| Country of origin | Germany |
| Warranty | 2 years |
| Availability | In stock |