Sandvik / Tamrock
551 660 50 O-Ring
DX700
Available — Request Quote| Part Number | 551 660 50 |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Valve, Discharge |
| Type | Drill Rig Spare Part |
Compatibility
Machine Models
Quick answer
551 660 50 (also written 55166050 or 551-660-50) is a Sandvik o-ring spare part used in the Valve, Discharge assembly of the Sandvik DX700. Verified compatible with 13 Sandvik machine models including COMMANDO DC300Ri, DC550, DQ500. 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: 55166050, 551 660 50, 551-660-50.
Compatible machines
13
OEM cross-reference
551 660 50
About Sandvik 551 660 50 O-Ring
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik DX700. Part of the Valve, Discharge, 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 DX700 (DX700). 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.
