


Sandvik / Tamrock
551 800 40 Spacer
DD321-40
| Part Number | 551 800 40 |
| Description | Spacer |
| Brand | Sandvik (Tamrock) |
| Assembly | Rear end module |
| Type | Drill Rig Spare Part |
Quick answer
551 800 40 (also written 55180040, 551-800-40, or 551.800.40) is a Sandvik spacer spare part used in the Rear end module assembly of the Sandvik DD321-40. Verified compatible with 3 Sandvik machine models including DD321-40, DD321-40C, 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: 55180040, 551 800 40, 551-800-40.
Compatible machines
3
OEM cross-reference
551 800 40
About Sandvik 551 800 40 Spacer
This component is part of the Rear end module assembly in the Sandvik DD321-40. 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 DD321-40 (DD321-40). 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.







