Sandvik / Tamrock
551 546 17 O-Ring
DL421-15C
| Part Number | 551 546 17 |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | ENSAMBLAJE |
| Type | Drill Rig Spare Part |
Quick answer
551 546 17 (also written 55154617, 551-546-17, or 551.546.17) is a Sandvik o-ring spare part used in the ENSAMBLAJE assembly of the Sandvik DL421-15C. Verified compatible with 2 Sandvik machine models including DL421-15C, DL432i. 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: 55154617, 551 546 17, 551-546-17.
Compatible machines
2
OEM cross-reference
551 546 17
About Sandvik 551 546 17 O-Ring
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik DL421-15C. Part of the ENSAMBLAJE, 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 DL421-15C (DL421-15C). 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.
