


Sandvik / Tamrock
BG 003 595 77a O-Ring, Rubber
DD422i
| Part Number | BG 003 595 77a |
| Description | O-Ring, Rubber |
| Brand | Sandvik (Tamrock) |
| Assembly | Jack |
| Type | Drill Rig Spare Part |
Quick answer
BG 003 595 77a (also written BG00359577a, BG-003-595-77a, or BG.003.595.77a) is a Sandvik o-ring, rubber spare part used in the Jack assembly of the Sandvik DD422i. Verified compatible with 5 Sandvik machine models including DD422i, DD422i-60C, DD422iE. 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: BG00359577a, BG 003 595 77a, BG-003-595-77a.
Compatible machines
5
OEM cross-reference
BG 003 595 77a
About Sandvik BG 003 595 77a O-Ring, Rubber
A precision-molded sealing element for the Sandvik DD422i, this O-ring is used in the Jack 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 DD422i (DD422i). 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.


