Sandvik / Tamrock
550 987 87 O-Ring
DC122R
| Part Number | 550 987 87 |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Pump Assembly, Hydraulic |
| Type | Drill Rig Spare Part |
Quick answer
550 987 87 (also written 55098787, 550-987-87, or 550.987.87) is a Sandvik o-ring spare part used in the Pump Assembly, Hydraulic assembly of the Sandvik DC122R. Verified compatible with 6 Sandvik machine models including DB120, DC120, DC122R. 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: 55098787, 550 987 87, 550-987-87.
Compatible machines
6
OEM cross-reference
550 987 87
About Sandvik 550 987 87 O-Ring
A precision-molded sealing element for the Sandvik DC122R, this O-ring is used in the Pump Assembly, Hydraulic to create a reliable static or dynamic seal. Even minor O-ring deterioration can lead to system pressure loss, so scheduled replacement during routine maintenance is strongly recommended.
This is an OEM-compatible aftermarket replacement part for the Sandvik DC122R (DC122R). 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
Why do O-rings fail in drilling equipment?
O-rings fail due to chemical degradation from hydraulic fluid, extreme temperature cycling, excessive pressure spikes, improper installation (twisting or pinching), and age-related hardening. Using the correct material compound for each application is critical.
