


Sandvik / Tamrock
550 173 71 BOQUILLA
DD321-40
| Part Number | 550 173 71 |
| Description | BOQUILLA |
| Brand | Sandvik (Tamrock) |
| Assembly | Nozzle |
| Type | Drill Rig Spare Part |
Quick answer
550 173 71 (also written 55017371, 550-173-71, or 550.173.71) is a Sandvik boquilla spare part used in the Nozzle assembly of the Sandvik DD321-40. Verified compatible with 23 Sandvik machine models including DB120, DD320S, DD321-40. 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: 55017371, 550 173 71, 550-173-71.
Compatible machines
23
OEM cross-reference
550 173 71
About Sandvik 550 173 71 BOQUILLA
An essential element of the Nozzle in the Sandvik DD321-40, this part is designed to meet the exacting standards required for underground and surface drilling equipment. Timely replacement prevents costly cascading failures in critical machine systems.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD321-40 (DD321-40). 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 use OEM-compatible parts for Sandvik drilling equipment?
OEM-compatible parts are manufactured to the same dimensional tolerances and material specifications as original components, ensuring proper fit, reliable performance, and maintaining the designed safety margins of the drilling machine.







