


Sandvik / Tamrock
550 361 86 O-ring
Rock Drill Spare Part
| Part Number | 550 361 86 |
| Description | O-ring |
| Brand | Sandvik (Tamrock) |
| Assembly | HOUSING |
| Type | Rock Drill Spare Part |
Quick answer
550 361 86 (also written 55036186, 550-361-86, or 550.361.86) is a Sandvik o-ring spare part used in the HOUSING assembly of the Sandvik DP1500. Verified compatible with 3 Sandvik machine models including DP1100i, DP1500, DP1500i. Used in 1 drifter configuration (HL1560T). 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: 55036186, 550 361 86, 550-361-86.
Compatible machines
3
Drifter configurations
1
OEM cross-reference
550 361 86
About Sandvik 550 361 86 O-ring
A precision-molded sealing element for the Sandvik DP1500, this O-ring is used in the HOUSING to create a reliable static or dynamic seal. Even minor O-ring deterioration can lead to system pressure loss, so scheduled replacement during routine maintenance is strongly recommended.
This is an OEM-compatible aftermarket replacement part for the Sandvik DP1500 (DP1500). 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.







