Sandvik / Tamrock
804 379 09 O-Ring
Rock Drill Spare Part
| Part Number | 804 379 09 |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Housing |
| Type | Rock Drill Spare Part |
Quick answer
804 379 09 (also written 80437909, 804-379-09, or 804.379.09) is a Sandvik o-ring spare part used in the Housing assembly of the Sandvik DX700. Verified compatible with 7 Sandvik machine models including DL421-15C, DL421-7C, DP1100i. Used in 1 drifter configuration (HL1560T). 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: 80437909, 804 379 09, 804-379-09.
Compatible machines
7
Drifter configurations
1
OEM cross-reference
804 379 09
About Sandvik 804 379 09 O-Ring
A precision-molded sealing element for the Sandvik DX700, this O-ring is used in the Housing 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.
