Sandvik / Tamrock
866 809 69 O-RING
Rock Drill Spare Part
Available — Request Quote| Part Number | 866 809 69 |
| Description | O-RING |
| Brand | Sandvik (Tamrock) |
| Assembly | HYDRAULIC ROCK DRILL HL300 |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
866 809 69 (also written 86680969 or 866-809-69) is a Sandvik o-ring spare part used in the HYDRAULIC ROCK DRILL HL300 assembly of the Sandvik DX700. Verified compatible with 51 Sandvik machine models including COMMANDO 300, COMMANDO DC300Ri, DC301R. Used in 5 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: 86680969, 866 809 69, 866-809-69.
Compatible machines
51
Drifter configurations
5
OEM cross-reference
866 809 69
About Sandvik 866 809 69 O-RING
A precision-molded sealing element for the Sandvik DX700, this O-ring is used in the HYDRAULIC ROCK DRILL HL300 to create a reliable static or dynamic seal. Even minor O-ring deterioration can lead to system pressure loss, so scheduled replacement during routine maintenance is strongly recommended.
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.
