


Sandvik / Tamrock
818 454 49 O-RING
Rock Drill Spare Part
| Part Number | 818 454 49 |
| Description | O-RING |
| Brand | Sandvik (Tamrock) |
| Assembly | HYDR. CYLINDER |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
818 454 49 (also written 81845449, 818-454-49, or 818.454.49) is a Sandvik o-ring spare part used in the HYDR. CYLINDER assembly of the Sandvik DD321-40. Verified compatible with 20 Sandvik machine models including AXERA 6-240, AXERA 7-240, AXERA 8-290. Used in 1 drifter configuration (RD525). 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: 81845449, 818 454 49, 818-454-49.
Compatible machines
20
Drifter configurations
1
OEM cross-reference
818 454 49
About Sandvik 818 454 49 O-RING
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik DD321-40. Part of the HYDR. CYLINDER, 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 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
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.







