Sandvik / Tamrock
551 869 90a Cylinder, Front
Rock Drill Spare Part
| Part Number | 551 869 90a |
| Description | Cylinder, Front |
| Brand | Sandvik (Tamrock) |
| Assembly | Hydraulic rock drill |
| Type | Rock Drill Spare Part |
Quick answer
551 869 90a (also written 55186990a, 551-869-90a, or 551.869.90a) is a Sandvik cylinder, front spare part used in the Hydraulic rock drill assembly of the Sandvik DS411-C. Verified compatible with 4 Sandvik machine models including DS410, DS411, DS411-C. Used in 2 drifter configurations (HE300, RD314). 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: 55186990a, 551 869 90a, 551-869-90a.
Compatible machines
4
Drifter configurations
2
OEM cross-reference
551 869 90a
About Sandvik 551 869 90a Cylinder, Front
Engineered for the Sandvik DS411-C, this cylinder is part of the Hydraulic rock drill and provides precise hydraulic actuation under the heavy loads and harsh conditions of mining operations. Cylinder rebuild or replacement restores full force output and positional accuracy.
This is an OEM-compatible aftermarket replacement part for the Sandvik DS411-C (DS411-C). 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.
