Sandvik / Tamrock
551 853 89 Seal, Shaft
DD321-40
| Part Number | 551 853 89 |
| Description | Seal, Shaft |
| Brand | Sandvik (Tamrock) |
| Assembly | Assembly |
| Type | Drill Rig Spare Part |
Quick answer
551 853 89 (also written 55185389, 551-853-89, or 551.853.89) is a Sandvik seal, shaft spare part used in the Assembly assembly of the Sandvik DD321-40. Verified compatible with 14 Sandvik machine models including DD320S, DD321-40, DD321-40C. 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: 55185389, 551 853 89, 551-853-89.
Compatible machines
14
OEM cross-reference
551 853 89
Reference image
Available
About Sandvik 551 853 89 Seal, Shaft
This sealing component prevents hydraulic fluid leakage and contamination ingress in the Sandvik DD321-40 hydraulic system. Located within the Assembly, compromised seals lead to reduced drilling pressure, increased oil consumption, and potential damage to hydraulic pumps and valves.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD321-40 (DD321-40). 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.
