8T-8381 8T8381 180.46mm inner diameter cylinder head seal of 8U 8SU 8A
Price:
Negotiable
MOQ:
10
Delivery Time:
Within 5-15 days after getting your desposit
Brand:
OUB
Product Description
1. Quick Details of seal 8T-8381:
| Part NO. | 8T-8381 |
| Machine | Excavator |
| Size | 180.46mm |
| Material | NBR rubber |
| Oil seal type | O RING |
2. 8T-8381 picture:
3. Service part number :
| PART NO. | PART NO. | Part NO. |
| 3K-0360 | 6V1454 | 7F8268 |
| 6V3917 | 4J2506 | 3H-0107 |
| 6V5064 | 136-2942 | 4J8996 |
| 6V5066 | 6D7889 | 9M6097 |
| 4J3236 | 3K0715 | 8M5249 |
| 5J7013 | 4J0519 | 5M7329 |
| 4J9224 | 4J0520 | 3K0715 |
| 8T1919 | 5P7084 | 951594 |
| 6V6609 | 8M8282 | 335879 |
4. FAQ
Q: What construction machine does part number 8T-8381 O ring suit for?
A: Part number 8T-8381 O ring is designed for excavator hydraulic circuit connection sealing and hydraulic oil leakage prevention.
A: Part number 8T-8381 O ring is designed for excavator hydraulic circuit connection sealing and hydraulic oil leakage prevention.
Q: What material is the 8T-8381 O ring made of?
A: 8T-8381 O ring is made of high quality NBR rubber, which has good oil resistance and stable elasticity under normal hydraulic working temperature.
Q: What is the main function of this O-Ring?
A: It forms static sealing at pipe joints and component interfaces, stops hydraulic oil leaking out and prevents air from entering the hydraulic system.
Q: Where will this O ring be installed on the excavator?
A: It fits into the groove of hydraulic connectors, valve blocks and hydraulic component joint faces of excavator hydraulic system.
Q: What working pressure can this O ring withstand?
A: It can adapt to the medium pressure of excavator hydraulic system and keep sealing performance under continuous working vibration.
Q: Will repeated pressure cycles cause permanent deformation on this rubber ring?
A: Optimized rubber formula reduces compression‑set, retaining elasticity under cyclic pressure changes.
A: Optimized rubber formula reduces compression‑set, retaining elasticity under cyclic pressure changes.
Q: Is this O‑ring suitable for static connection only or can it be used for dynamic moving positions?
A: It performs best for static sealing joints; frequent high‑speed reciprocating motion will shorten its service life.
Q: What engineering scenarios frequently need this O-ring set for routine replacement?
A: It is widely used for maintenance of hydraulic pipeline connectors on large crawler excavators, including large open-pit mining, port cargo handling, mountain road excavation and urban large infrastructure projects.
5. Exhibition and Wearhous
Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Opal Machinery Parts Operation Department
Location
NO.212,Zhu ji rode,tian he distric,guangzhou,China
Contact Person
Vivian



