Sandvik / Tamrock
817 257 69a O-Ring
Rock Drill Spare Part
| Part Number | 817 257 69a |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Body, Rock Drill |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
817 257 69a (also written 81725769a, 817-257-69a, or 817.257.69a) is a Sandvik o-ring spare part used in the Body, Rock Drill assembly of the Sandvik DX700. Verified compatible with 8 Sandvik machine models including DL421-15C, DL421-7C, DL432i. Used in 9 drifter configurations (HL1000, HL1500, HL1500S). 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: 81725769a, 817 257 69a, 817-257-69a.
Compatible machines
8
Drifter configurations
9
OEM cross-reference
817 257 69a
About Sandvik 817 257 69a O-Ring
A precision-molded sealing element for the Sandvik DX700, this O-ring is used in the Body, Rock Drill 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.
