Sandvik / Tamrock
550 381 37d Cylinder, Hydraulic
DD321-40
| Part Number | 550 381 37d |
| Description | Cylinder, Hydraulic |
| Brand | Sandvik (Tamrock) |
| Assembly | Module, Rear |
| Type | Drill Rig Spare Part |
Quick answer
550 381 37d (also written 55038137d, 550-381-37d, or 550.381.37d) is a Sandvik cylinder, hydraulic spare part used in the Module, Rear assembly of the Sandvik DD321-40. Verified compatible with 4 Sandvik machine models including DD321-40, DD421-60C, DL421-15C. 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: 55038137d, 550 381 37d, 550-381-37d.
Compatible machines
4
OEM cross-reference
550 381 37d
About Sandvik 550 381 37d Cylinder, Hydraulic
Engineered for the Sandvik DD321-40, this cylinder is part of the Module, Rear 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 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
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.
