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Sandvik / Tamrock
551 578 81d Cylinder Assembly
DL431-7C
Available — Request Quote| Part Number | 551 578 81d |
| Description | Cylinder Assembly |
| Brand | Sandvik (Tamrock) |
| Assembly | Module, Boom |
| Type | Drill Rig Spare Part |
Quick answer
551 578 81d (also written 55157881d or 551-578-81d) is a Sandvik cylinder assembly spare part used in the Module, Boom assembly of the Sandvik DL431-7C. Verified compatible with 1 Sandvik machine model including 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: 55157881d, 551 578 81d, 551-578-81d.
Compatible machines
1
OEM cross-reference
551 578 81d
About Sandvik 551 578 81d Cylinder Assembly
This hydraulic cylinder is a core actuator component in the Sandvik DL431-7C, operating within the Module, Boom. It converts hydraulic fluid pressure into linear mechanical force for positioning, clamping, or feed operations essential to the drilling process.
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
When should a hydraulic cylinder be rebuilt or replaced?
Rebuild or replace when you observe fluid leakage past seals, reduced force output, sluggish or inconsistent movement, visible scoring on the cylinder rod, or when the machine cannot maintain required feed pressure during drilling.