
Sandvik / Tamrock
551 745 47b Valve, Air
DL431-7C
| Part Number | 551 745 47b |
| Description | Valve, Air |
| Brand | Sandvik (Tamrock) |
| Assembly | STEP BOX |
| Type | Drill Rig Spare Part |
Quick answer
551 745 47b (also written 55174547b, 551-745-47b, or 551.745.47b) is a Sandvik valve, air spare part used in the STEP BOX assembly of the Sandvik DL431-7C. Verified compatible with 2 Sandvik machine models including DL421-7C, DL431-7C. 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: 55174547b, 551 745 47b, 551-745-47b.
Compatible machines
2
OEM cross-reference
551 745 47b
About Sandvik 551 745 47b Valve, Air
This valve controls fluid flow and pressure within the hydraulic or pneumatic system of the Sandvik DL431-7C. Part of the STEP BOX, it ensures precise regulation of drilling parameters including feed force, percussion frequency, and rotation speed.
This is an OEM-compatible aftermarket replacement part for the Sandvik DL431-7C (DL431-7C). 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.




