


Sandvik / Tamrock
BG 003 266 57a Ring, Seal
DL421-15C
Available — Request Quote| Part Number | BG 003 266 57a |
| Description | Ring, Seal |
| Brand | Sandvik (Tamrock) |
| Assembly | Control Block Assembly |
| Type | Drill Rig Spare Part |
Quick answer
BG 003 266 57a (also written BG00326657a or BG-003-266-57a) is a Sandvik ring, seal spare part used in the Control Block Assembly assembly of the Sandvik DX700. Verified compatible with 11 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: BG00326657a, BG 003 266 57a, BG-003-266-57a.
Compatible machines
11
OEM cross-reference
BG 003 266 57a
About Sandvik BG 003 266 57a Ring, Seal
Designed specifically for the Sandvik DX700 Control Block Assembly, this seal ensures leak-free operation of hydraulic circuits. Mining environments expose seals to extreme temperatures, pressure spikes, and abrasive particles, making periodic replacement essential for uninterrupted drilling operations.
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
What happens when a hydraulic seal fails?
A failed hydraulic seal causes fluid leakage, leading to reduced system pressure, loss of machine force and speed, increased oil consumption, environmental contamination, and potential damage to pumps and valves operating without adequate fluid supply.
How can I identify worn seals in my drilling equipment?
Signs of seal wear include visible fluid leaks around cylinders and connections, reduced hydraulic system pressure, slower machine movements, increased oil consumption, and contaminated hydraulic fluid appearing milky or discolored.

