


Sandvik / Tamrock
812 254 39 O-RING
Rock Drill Spare Part
| Part Number | 812 254 39 |
| Description | O-RING |
| Brand | Sandvik (Tamrock) |
| Assembly | FLUSHING DEVICE / JIC |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
812 254 39 (also written 81225439, 812-254-39, or 812.254.39) is a Sandvik o-ring spare part used in the FLUSHING DEVICE / JIC assembly of the Sandvik DS411-C. Verified compatible with 12 Sandvik machine models including COMMANDO 300, COMMANDO DC300Ri, Commando DC130Ri. Used in 3 drifter configurations (HE300, HL300, HL300S). 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: 81225439, 812 254 39, 812-254-39.
Compatible machines
12
Drifter configurations
3
OEM cross-reference
812 254 39
About Sandvik 812 254 39 O-RING
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik DS411-C. Part of the FLUSHING DEVICE / JIC, 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 DS411-C (DS411-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.




