


Sandvik / Tamrock
550 252 91 O-RING
DP800
| Part Number | 550 252 91 |
| Description | O-RING |
| Brand | Sandvik (Tamrock) |
| Assembly | AIR CONDITIONING ASSEMBLY |
| Type | Drill Rig Spare Part |
Quick answer
550 252 91 (also written 55025291, 550-252-91, or 550.252.91) is a Sandvik o-ring spare part used in the AIR CONDITIONING ASSEMBLY assembly of the Sandvik RANGER 500-2. Verified compatible with 6 Sandvik machine models including DP1100, DP1500, DP800. 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: 55025291, 550 252 91, 550-252-91.
Compatible machines
6
OEM cross-reference
550 252 91
About Sandvik 550 252 91 O-RING
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik RANGER 500-2. Part of the AIR CONDITIONING ASSEMBLY, it prevents fluid leakage at connection points and maintains system pressure integrity essential for efficient drilling operations.
This is an OEM-compatible aftermarket replacement part for the Sandvik RANGER 500-2 (RANGER 500-2). 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 do O-rings fail in drilling equipment?
O-rings fail due to chemical degradation from hydraulic fluid, extreme temperature cycling, excessive pressure spikes, improper installation (twisting or pinching), and age-related hardening. Using the correct material compound for each application is critical.







