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178-7189 1787189 High Quality OEM Standard 416D 438D 428C

Name: 178-7189 1787189 High Quality OEM Standard 416D 438D 428C
Brand: Guangzhou Opal Machinery Parts Operation Department
SKU: 178-7189
Price: 7.00 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: OUB

Certification: ISO9001

Model Number: 178-7189

Payment & Shipping Terms

Minimum Order Quantity: 10

Price: Negotiable

Packaging Details: PP Bag Inside.outer is carton with film wrapped.

Delivery Time: Within 5-15 days after getting your desposit

Payment Terms: L/C,D/A,D/P,T/T,Western Union

Supply Ability: 1000Pcs

Get Best Price

Product Details

Product Description

Product Details

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                                                                                                                                                                                                                                                OEM cylinder seal kit, 416D 438D cylinder seal, 428C hydraulic seal kit
                              

Part No.::	178-7189	Part Name::	SEAL KIT
Model:	424D 420D	Machine:	Backhoe Loader
Material:	Nitrile Rubber	Color:	BLACK,BROWN,WHITE

Part No.::	178-7189
Part Name::	SEAL KIT
Model:	424D 420D
Machine:	Backhoe Loader
Material:	Nitrile Rubber
Color:	BLACK,BROWN,WHITE

Product Description

1. Quick Details of seal 178-7189:

Part NO.	178-7189
Machine	Backhoe Loader
Size	OEM
Material	nitrile rubber
Oil seal type	SEAL KIT

2. 178-7189 picture:

178-7189 1787189 High Quality OEM Standard 416D 438D 428C 0
3. Service part number :

PART NO.	PART NO.	Part NO.
6V5326	4F7389	6V9027
5J8150	4J9220	6V-5553
6J9733	2J8163	6V-5656
8175504	2H3935	4L8337
5J8175	4J9221	7L-4774
6J9178	5F3106	6V-8260
9M2092	5P8211	095-1728
4J5267	2M1309	095-1633
6V5049	6F6673	136-2942
1H9696	8M5249	6D7889
5P9519	5M7329	3K0715
2287090	5P7084	951594
2287089	8M8282	335879

4. FAQ

Q: What materials are used in this kit?
A: It includes polyurethane, hydrogenated nitrile rubber, fluororubber, filled PTFE, and a fabric-reinforced guide ring, each serving a specific sealing or guiding function.

Q: What is the main function of this seal kit?
A: It prevents both internal and external hydraulic fluid leaks, maintains consistent system pressure, and blocks dirt and moisture to protect the cylinder’s internal parts.

Q: Can I reuse seals that were removed from the cylinder?
A: No. Once seals are removed, they lose elasticity and can develop permanent deformation, so they cannot form a reliable seal again.

Q: What happens when the seals in this kit fail?
A: Hydraulic fluid will leak, causing pressure loss, slow or jerky cylinder movement, reduced lifting power, and even damage to other parts of the hydraulic system.

Q: What preparation work is needed before installing the new kit?
A: Disassemble the cylinder, thoroughly clean the bore and piston rod, remove all old seal residue and debris, and check for scratches or burrs on the surfaces.

5. Exhibition and Wearhous

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