


Sandvik / Tamrock
551 523 78a Plate, Mounting
DT921i
| Part Number | 551 523 78a |
| Description | Plate, Mounting |
| Brand | Sandvik (Tamrock) |
| Assembly | Mounting |
| Type | Drill Rig Spare Part |
Quick answer
551 523 78a (also written 55152378a, 551-523-78a, or 551.523.78a) is a Sandvik plate, mounting spare part used in the Mounting assembly of the Sandvik DT921i. Verified compatible with 1 Sandvik machine model including DT921i. 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: 55152378a, 551 523 78a, 551-523-78a.
Compatible machines
1
OEM cross-reference
551 523 78a
About Sandvik 551 523 78a Plate, Mounting
Part of the Mounting in the Sandvik DT921i, this plate provides essential mounting, wear protection, or structural support. Regular inspection for wear, cracking, or deformation helps prevent unexpected equipment failure during drilling operations.
This is an OEM-compatible aftermarket replacement part for the Sandvik DT921i (DT921i). 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.

