Sandvik / Tamrock
047 003 91 O-ring
LH410
| Part Number | 047 003 91 |
| Description | O-ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Modulator valve assembly |
| Type | Drill Rig Spare Part |
Quick answer
047 003 91 (also written 04700391, 047-003-91, or 047.003.91) is a Sandvik o-ring spare part used in the Modulator valve assembly assembly of the Sandvik LH410. Verified compatible with 5 Sandvik machine models including LH307, LH410, LH514. 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: 04700391, 047 003 91, 047-003-91.
Compatible machines
5
OEM cross-reference
047 003 91
About Sandvik 047 003 91 O-ring
A precision-molded sealing element for the Sandvik LH410, this O-ring is used in the Modulator valve assembly 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 LH410 (LH410). 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.
