


Sandvik / Tamrock
551 709 74 Lock piece
DQ240R
| Part Number | 551 709 74 |
| Description | Lock piece |
| Brand | Sandvik (Tamrock) |
| Assembly | Housing Assembly |
| Type | Drill Rig Spare Part |
Quick answer
551 709 74 (also written 55170974, 551-709-74, or 551.709.74) is a Sandvik lock piece spare part used in the Housing Assembly assembly of the Sandvik DQ240R. Verified compatible with 1 Sandvik machine model including DQ240R. 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: 55170974, 551 709 74, 551-709-74.
Compatible machines
1
OEM cross-reference
551 709 74
About Sandvik 551 709 74 Lock piece
An essential element of the Housing Assembly in the Sandvik DQ240R, 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 DQ240R (DQ240R). 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.

