Sandvik / Tamrock
801 994 29a O-Ring
DD321-40
| Part Number | 801 994 29a |
| Description | O-Ring |
| Brand | Sandvik (Tamrock) |
| Assembly | Cylinder, Hydraulic |
| Type | Drill Rig Spare Part |
Quick answer
801 994 29a (also written 80199429a, 801-994-29a, or 801.994.29a) is a Sandvik o-ring spare part used in the Cylinder, Hydraulic assembly of the Sandvik DD321-40. Verified compatible with 24 Sandvik machine models including DD320S, DD321-40, DD321-40C. 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: 80199429a, 801 994 29a, 801-994-29a.
Compatible machines
24
OEM cross-reference
801 994 29a
About Sandvik 801 994 29a O-Ring
This O-ring provides critical sealing in the hydraulic or pneumatic circuits of the Sandvik DD321-40. Part of the Cylinder, Hydraulic, 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 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
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.
