


Sandvik / Tamrock
550 430 89 Rod, PISTON
DL310-7P
| Part Number | 550 430 89 |
| Description | Rod, PISTON |
| Brand | Sandvik (Tamrock) |
| Assembly | CYLINDER |
| Type | Drill Rig Spare Part |
Quick answer
550 430 89 (also written 55043089, 550-430-89, or 550.430.89) is a Sandvik rod, piston spare part used in the CYLINDER assembly of the Sandvik DL321-7. Verified compatible with 2 Sandvik machine models including DL310-7P, DL321-7. 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: 55043089, 550 430 89, 550-430-89.
Compatible machines
2
OEM cross-reference
550 430 89
About Sandvik 550 430 89 Rod, PISTON
A critical hydraulic component in the Sandvik DL321-7 percussion mechanism, this piston converts hydraulic pressure into the powerful impact force needed for rock breaking. Located in the CYLINDER, worn pistons cause reduced penetration rate, increased energy consumption, and decreased overall drilling efficiency.
This is an OEM-compatible aftermarket replacement part for the Sandvik DL321-7 (DL321-7). 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
How does a worn piston affect drilling performance?
A worn piston reduces percussion energy transfer, decreasing penetration rate and increasing the time and energy required to drill each hole. This directly impacts productivity and operating costs in mining operations.


