Sandvik / Tamrock
551 893 65 Coupling, Ball SEAL
DI550
| Part Number | 551 893 65 |
| Description | Coupling, Ball SEAL |
| Brand | Sandvik (Tamrock) |
| Assembly | Spring, Gas |
| Type | Drill Rig Spare Part |
Quick answer
551 893 65 (also written 55189365, 551-893-65, or 551.893.65) is a Sandvik coupling, ball seal spare part used in the Spring, Gas assembly of the Sandvik DI550. Verified compatible with 4 Sandvik machine models including COMMANDO DC300Ri, Commando DC130Ri, DI550. 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: 55189365, 551 893 65, 551-893-65.
Compatible machines
4
OEM cross-reference
551 893 65
About Sandvik 551 893 65 Coupling, Ball SEAL
Critical for maintaining system pressure integrity in the Sandvik DI550, this seal is part of the Spring, Gas and provides a reliable barrier against fluid loss and external contamination. Regular seal replacement is a cost-effective maintenance practice that prevents major hydraulic system failures.
This is an OEM-compatible aftermarket replacement part for the Sandvik DI550 (DI550). 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
What happens when a hydraulic seal fails?
A failed hydraulic seal causes fluid leakage, leading to reduced system pressure, loss of machine force and speed, increased oil consumption, environmental contamination, and potential damage to pumps and valves operating without adequate fluid supply.
How can I identify worn seals in my drilling equipment?
Signs of seal wear include visible fluid leaks around cylinders and connections, reduced hydraulic system pressure, slower machine movements, increased oil consumption, and contaminated hydraulic fluid appearing milky or discolored.