Excavator boom cylinder sealing components

4379260 piston seals, rod seals, and O-rings

Durable hydraulic cylinder seals for EX100-5

High-quality boom cylinder seal kit YNF17480

YNF17480 Boom Cylinder Seal Kit 4379260 EX100-5 Hydraulic Arm Repair Kit Excavator Boom Seal Set

High-performance EX100-5 boom cylinder seal kit designed to prevent hydraulic leaks and restore excavator arm lifting efficiency.

Compatible with EX100-5 excavator boom cylinder
Complete rebuild kit with piston seals, rod seals, O-rings, wiper rings, backup rings
High-pressure, wear-resistant sealing materials
Prevents hydraulic oil leakage and restores lifting performance
Easy installation reduces downtime and maintenance costs

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EX100-5 Boom Cylinder Seal Kit Description

The YNF17480 4379260 EX100-5 Boom Cylinder Seal Kit provides all essential sealing components for rebuilding the boom cylinder of EX100-5 excavators. Over time, hydraulic cylinder seals deteriorate due to high pressure, continuous operation, and oil contamination, resulting in internal leakage, reduced lifting performance, or abnormal cylinder operation.

This kit includes premium piston seals, rod seals, O-rings, wiper rings, and backup rings made of high-quality PU, NBR, PTFE, and rubber compounds. These materials provide excellent durability, high pressure tolerance, and long-lasting performance under demanding working conditions.

Trusted by service workshops, fleet operators, and aftermarket distributors, the YNF17480 seal kit delivers a reliable and cost-effective solution to restore boom cylinder performance, minimize downtime, and prolong excavator hydraulic system lifespan.

EX100-5 Boom Cylinder Seal Kit Technical Data Sheet

Parameter	Details
YNF Part Number	YNF17480
OEM Part Number	4379260
Model Compatibility	EX100-5 Excavator
Product Type	Boom Cylinder Seal Kit / Hydraulic Arm Repair Kit
Included Components	Piston seals, rod seals, O-rings, wiper rings, backup rings
Material	PU / NBR / PTFE / Rubber
Function	Restores cylinder sealing, prevents leakage, stabilizes lifting performance
Application	Excavator boom cylinder maintenance
Brand	YNF
Origin	China
MOQ	1 Set
Shipping Options	Air, Sea, Express
Payment Terms	T/T, PayPal, Western Union

EX100-5 Boom Cylinder Seal Kit Applications

Application Area	Description
Boom Cylinder Rebuild	Complete sealing solution for EX100-5 boom cylinder
Excavator Hydraulic Arm Repair	Prevents internal leakage and restores lifting power
Hydraulic Performance Restoration	Improves flow stability and cylinder response
Workshop & Fleet Maintenance	Ideal for service workshops and machinery operators
Aftermarket Hydraulic Seal Distribution	Suitable for distributors and rebuild specialists

EX100-5 Boom Cylinder Seal Kit Detail Display

FAQs

Related Products:

EX100-5 Arm Cylinder Seal Kit
EX100-5 Bucket Cylinder Seal Kit
Hydraulic Cylinder O-Ring Sets
Aftermarket Boom Cylinder Seal Kits
Excavator Cylinder Rebuild Components

FAQs:

Q: Is the seal kit compatible with EX100-5 boom cylinder?
A: Yes, it is specifically designed for EX100-5 excavator boom cylinders.
Q: What issues indicate cylinder seal failure?
A: Hydraulic oil leakage, reduced lifting force, abnormal cylinder movement.
Q: Is this a complete rebuild kit?
A: Yes, it includes all essential seals for boom cylinder overhaul.
Q: MOQ?
A: 1 set.

Request Quote for EX100-5 Boom Cylinder Seal Kit

The YNF17480 4379260 EX100-5 Boom Cylinder Seal Kit ensures reliable sealing performance for excavator boom cylinders. Made from high-pressure and wear-resistant materials, it restores hydraulic lifting efficiency, prevents oil leakage, and reduces machine downtime. YNF Machinery guarantees stable quality, competitive pricing, and global shipping—ideal for repair workshops, fleet owners, and aftermarket distributors. Contact us today for your best quotation.

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YNF17480 Boom Cylinder Seal Kit 4379260 EX100-5 Hydraulic Arm Repair Kit Excavator Boom Seal Set

EX100-5 Boom Cylinder Seal Kit Description

EX100-5 Boom Cylinder Seal Kit Technical Data Sheet

EX100-5 Boom Cylinder Seal Kit Applications

EX100-5 Boom Cylinder Seal Kit Detail Display

Request Quote for EX100-5 Boom Cylinder Seal Kit

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