Guangzhou Opal Machinery Parts Operation Department
                                                                                                           
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8T-8381 8T8381 180.46mm inner diameter cylinder head seal of 8U 8SU 8A

Price Negotiable
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.

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.

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

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 1

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 2

 

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 3

 

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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

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