


Sandvik / Tamrock
550 890 54a Sign
DD321-40
| Part Number | 550 890 54a |
| Description | Sign |
| Brand | Sandvik (Tamrock) |
| Assembly | Caution board set |
| Type | Drill Rig Spare Part |
Quick answer
550 890 54a (also written 55089054a, 550-890-54a, or 550.890.54a) is a Sandvik sign spare part used in the Caution board set assembly of the Sandvik DD320-40. Verified compatible with 7 Sandvik machine models including DD320-40, DD321-40, DD321-40C. 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: 55089054a, 550 890 54a, 550-890-54a.
Compatible machines
7
OEM cross-reference
550 890 54a
About Sandvik 550 890 54a Sign
This component is part of the Caution board set assembly in the Sandvik DD320-40. Maintaining OEM-compatible replacement parts ensures reliable machine performance and minimizes downtime in demanding mining and drilling operations.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD320-40 (DD320-40). 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.









