Sandvik / Tamrock
551 804 44b Valve assembly
DD321-40
| Part Number | 551 804 44b |
| Description | Valve assembly |
| Brand | Sandvik (Tamrock) |
| Assembly | 10 |
| Type | Drill Rig Spare Part |
Quick answer
551 804 44b (also written 55180444b, 551-804-44b, or 551.804.44b) is a Sandvik valve assembly spare part used in the 10 assembly of the Sandvik DD321-40. Verified compatible with 1 Sandvik machine model including DD321-40. 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: 55180444b, 551 804 44b, 551-804-44b.
Compatible machines
1
OEM cross-reference
551 804 44b
About Sandvik 551 804 44b Valve assembly
This valve controls fluid flow and pressure within the hydraulic or pneumatic system of the Sandvik DD321-40. Part of the 10, 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 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.
