Sandvik / Tamrock
551 634 91 Swivel nut elbow 90
DD421-60C
| Part Number | 551 634 91 |
| Description | Swivel nut elbow 90 |
| Brand | Sandvik (Tamrock) |
| Assembly | Fire Suppression System |
| Type | Drill Rig Spare Part |
Compatibility
Machine Models
Quick answer
551 634 91 (also written 55163491, 551-634-91, or 551.634.91) is a Sandvik swivel nut elbow 90 spare part used in the Fire Suppression System assembly of the Sandvik DD421-60C. Verified compatible with 10 Sandvik machine models including DD321-40C, DD421-60, DD421-60C. 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: 55163491, 551 634 91, 551-634-91.
Compatible machines
10
OEM cross-reference
551 634 91
About Sandvik 551 634 91 Swivel nut elbow 90
This fastener is used in the Fire Suppression System of the Sandvik DD421-60C. High-strength fasteners in drilling equipment must withstand extreme vibration, cyclic loading, and environmental exposure. Using OEM-specification fasteners ensures proper clamping force and joint integrity in critical assemblies.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD421-60C (DD421-60C). 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.
