Sandvik / Tamrock
550 643 38 O-Ring
DS411
Available — Request Quote| Part Number | 550 643 38 |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Panel |
| Type | Drill Rig Spare Part |
Quick answer
550 643 38 (also written 55064338 or 550-643-38) is a Sandvik o-ring spare part used in the Panel assembly of the Sandvik DT921i. Verified compatible with 4 Sandvik machine models including DS411, DT1132i, DT1330i. 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: 55064338, 550 643 38, 550-643-38.
Compatible machines
4
OEM cross-reference
550 643 38
About Sandvik 550 643 38 O-Ring
A precision-molded sealing element for the Sandvik DT921i, this O-ring is used in the Panel 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 DT921i (DT921i). 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.
