


Sandvik / Tamrock
551 587 61 PISTON
DT821-C
| Part Number | 551 587 61 |
| Description | PISTON |
| Brand | Sandvik (Tamrock) |
| Assembly | Cylinder Assembly |
| Type | Drill Rig Spare Part |
Quick answer
551 587 61 (also written 55158761, 551-587-61, or 551.587.61) is a Sandvik piston spare part used in the Cylinder Assembly assembly of the Sandvik DT821-C. Verified compatible with 11 Sandvik machine models including DD421-60, DD421-60C, DD422i. Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 55158761, 551 587 61, 551-587-61.
Compatible machines
11
OEM cross-reference
551 587 61
About Sandvik 551 587 61 PISTON
This piston is a key element of the Cylinder Assembly in the Sandvik DT821-C. It operates under extreme cyclic loading and high-pressure hydraulic conditions. Maintaining OEM-specification pistons ensures optimal percussion energy transfer and maximizes rock-breaking performance.
This is an OEM-compatible aftermarket replacement part for the Sandvik DT821-C (DT821-C). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
How does a worn piston affect drilling performance?
A worn piston reduces percussion energy transfer, decreasing penetration rate and increasing the time and energy required to drill each hole. This directly impacts productivity and operating costs in mining operations.






