


Epiroc / Atlas Copco
0663 3120 00 O-RING
FlexiROC T35 Drill Rig Spare Part
| Part Number | 0663 3120 00 |
| Description | O-RING |
| Brand | Epiroc (Atlas Copco) |
| Assembly | FILLER SET |
| Type | Drill Rig Spare Part |
Compatibility
Machine Models
Quick answer
0663 3120 00 (also written 0663312000, 0663-3120-00, or 0663.3120.00) is a Epiroc o-ring spare part used in the FILLER SET assembly of the Epiroc FlexiROC T35. Verified compatible with 7 Epiroc machine models including Boomer 282, ROC D7-11, FlexiROC T35. 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: 0663312000, 0663 3120 00, 0663-3120-00.
Compatible machines
7
OEM cross-reference
0663 3120 00
About Epiroc 0663 3120 00 O-RING
A precision-molded sealing element for the Sandvik FlexiROC T35, this O-ring is used in the FILLER SET 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 Epiroc FlexiROC T35 (FlexiROC T35). 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.









