Sandvik / Tamrock
550 198 05 O-Ring
DT821-C
| Part Number | 550 198 05 |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Shaft Assembly |
| Type | Drill Rig Spare Part |
Quick answer
550 198 05 (also written 55019805, 550-198-05, or 550.198.05) is a Sandvik o-ring spare part used in the Shaft Assembly assembly of the Sandvik DT821-C. Verified compatible with 5 Sandvik machine models including DS511-C, DT1132i, DT1330i. 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: 55019805, 550 198 05, 550-198-05.
Compatible machines
5
OEM cross-reference
550 198 05
About Sandvik 550 198 05 O-Ring
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik DT821-C. Part of the Shaft Assembly, it prevents fluid leakage at connection points and maintains system pressure integrity essential for efficient drilling operations.
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
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.
