YNF16872 4366958 EX120-5 main control valve seal kit
EX120-5 hydraulic main valve seal repair kit
4366958 excavator control valve seal components
Hitachi EX120-5 distributor valve seal replacement
YNF16872 4366958 EX120-5 main control valve seal kit
EX120-5 hydraulic main valve seal repair kit
4366958 excavator control valve seal components
Hitachi EX120-5 distributor valve seal replacement

YNF16872 Seal Kit 4366958 EX120-5 Main Control Valve Seal Kit Excavator Distributor Valve Repair Kit

High-quality seal kit for EX120-5 main control valve, preventing leakage and restoring hydraulic system precision.

  • OEM-compatible 4366958 EX120-5 main control valve seal kit

  • Prevents internal/external leakage and restores hydraulic control accuracy

  • Resistant to high temperature, high pressure, and fluid contamination

  • Includes O-rings, gaskets, wear seals, and precision hydraulic elements

  • Ideal for excavator repair shops, parts distributors, and fleet maintenance teams

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EX120-5 Main Control Valve Seal Kit Description

The YNF16872 Main Control Valve Seal Kit, replacing OEM 4366958, is designed for the Hitachi EX120-5 excavator, ensuring the proper sealing performance of the machine’s central hydraulic distribution system. The main control valve (MCV) is responsible for allocating hydraulic flow to boom, arm, bucket, and travel circuits. Any seal degradation can lead to internal leakage, pressure drop, slow response, or poor machine control.

This seal kit includes premium O-rings, backup rings, wear seals, and high-pressure-resistant sealing components made from PU, NBR, PTFE, and advanced composite materials. These components are engineered to withstand continuous high-duty operation, hydraulic contamination, and temperature variations.

Widely used by hydraulic workshops, construction fleet owners, and aftermarket parts suppliers, the YNF16872 kit provides a reliable and cost-effective solution for restoring main valve precision, improving control performance, and reducing downtime on EX120-5 excavators.

EX120-5 Main Control Valve Seal Kit Technical Data Sheet

Parameter Details
YNF Part Number YNF16872
OEM Number 4366958
Machine Model Hitachi EX120-5
Component Main Control Valve / Distributor Valve
Product Type Hydraulic Seal Kit / Repair Kit
Materials PU, NBR, PTFE, wear rings, O-rings
Function Restores valve sealing, prevents leakage, stabilizes pressure
Application Hydraulic control valve overhaul & system maintenance
Installation OEM-fit replacement
Brand YNF
Origin China
MOQ 1 Set
Shipping Options Air, Sea, Express
Payment Terms T/T, PayPal, Western Union

EX120-5 Control Valve Seal Kit Applications

Application Area Description
Main Control Valve Repair Restores sealing on spool, ports, and internal chambers
Excavator Hydraulic Flow Distribution Ensures stable flow for boom, arm, bucket, and travel
EX120-5 Valve Body Rebuild Direct-fit for 4366958 EX120-5
Construction & Earthmoving Equipment Service Withstands heavy-duty jobsite conditions
Aftermarket Distribution Suitable for hydraulic repair shops and wholesalers

EX120-5 Control Valve Seal Kit Detail Display

FAQs

Related Products:

  • EX120-5 Travel Motor Seal Kit

  • Hitachi Hydraulic Valve Repair Kits

  • 4366958 Main Valve Components

  • Excavator O-ring Seal Kit Sets

FAQs：

  • Q: Does this seal kit fit EX120-5 main control valve?
    A: Yes, it is a replacement for OEM 4366958.

  • Q: What symptoms indicate valve seal failure?
    A: Internal leakage, slow hydraulic response, weak power, overheating.

  • Q: What materials are included?
    A: PU, NBR, PTFE seals, O-rings, gaskets, backup rings.

  • Q: Is MOQ small?
    A: Yes, MOQ = 1 set.

Get Free Quote for 4366958 EX120-5 Valve Seal Kit

The YNF16872 4366958 EX120-5 Main Control Valve Seal Kit delivers reliable sealing for critical hydraulic distribution circuits. Its high-pressure-resistant materials ensure stable machine performance, reduced leakage, and improved control accuracy. YNF Machinery provides consistent quality, competitive B2B pricing, and fast global shipping—ideal for excavator repair centers, fleet operators, and aftermarket resellers. Contact us now for an accurate quotation.

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