COGENG 707-99-64150 7079964150 Premium Hydraulic Cylinder Seal Kit for Komatsu Excavators | Direct OEM Replacement | Complete Overhaul Solution
  • COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu Excavators | Direct OEM Replacement | Complete Overhaul Solution
  • COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu Excavators | Direct OEM Replacement | Complete Overhaul Solution
  • COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu Excavators | Direct OEM Replacement | Complete Overhaul Solution
  • COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu Excavators | Direct OEM Replacement | Complete Overhaul Solution

COGENG 707-99-64150 7079964150 Premium Hydraulic Cylinder Seal Kit for Komatsu

Product name:  Komatsu  Hydraulic Cylinder Seal Kit Seal Kit
Part No:  707-99-64150  7079964150
Model Number:For PC130 PC138 PC160 PC200 PC210
Wheel Loaders & Others:  821F 821G 721F 721G
Material:Lron+Rubber
Packing:PP bag inside, carton box outside
Payment Terms:Western Union, L/C, T/T, MoneyGram, D/A, D/P
MOQ:Acceptable trial order
Shipping Mode:By air, by sea, by express(Fedex, UPS, DHL, TNT, etc.)
Place of Origin:Guangdong, China
Brand name:COGENG
CertifiCATEEion:ISO9001
Supply :500PCS
 
  • COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu Excavators | Direct OEM Replacement | Complete Overhaul Solution
  • COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG 707-99-64150  7079964150  Premium Hydraulic Cylinder Seal Kit for Komatsu Excavators | Direct OEM Replacement | Complete Overhaul Solution

Desciption

Technical Specifications & Performance Data

Parameter Specification Testing Standard
COGENG Part Number COGENG-707-99-64150-HSK Internal Quality Standard QS-510
Replaces OEM Part No. Komatsu 707-99-64150 Direct OEM Replacement
Primary Seal Material Polyurethane (PU) Grade 95A ISO 6072
Secondary Seal Material Nitrile (NBR) with PTFE fill ISO 6072
Wiper Material Polyurethane double-lipped ISO 6194
O-Ring Material Nitrile (NBR) 70 Durometer ISO 3601-1
Wear Ring Material PTFE-filled composite ISO 6811
Backup Ring Material Nylon 6.6 ISO 1874-1
Temperature Range -40°C to +120°C (-40°F to +248°F) ISO 2230
Pressure Rating Up to 40 MPa (5800 PSI) ISO 10766-1
Fluid Compatibility Komatsu Super Hydraulic Fluid, mineral oil, synthetic ISO 6743-4
Shelf Life 5 years in original packaging ISO 2230


Component Specifications Table

Component Material Size Specification Quantity Function
Main Piston Seal Polyurethane 120mm ID x 9mm width 1 Primary pressure sealing
Rod Seal NBR with PTFE 85mm ID x 7.5mm width 1 Dynamic rod sealing
Buffer Seal Polyurethane 120mm ID x 7mm width 1 Pressure peak protection
Wiper Seal Polyurethane double-lipped 85.5mm ID 1 Contaminant exclusion
Wear Bands PTFE composite 120mm OD x 7mm width 2 Piston guidance
O-Rings Nitrile (NBR) Various sizes AS568 8 Static sealing
Backup Rings Nylon 6.6 Various sizes 4 Anti-extrusion support
Guide Rings PTFE-filled fabric 120mm OD x 7mm width 2 Bearing surface protection
Gland Gasket NBR 90mm OD x 3mm CS 1 Gland static seal

Compatible Komatsu Excavator Models

Model Series Specific Models Cylinder Applications Year Range
Komatsu PC130 PC130-7, PC130-8 Boom, Arm, Bucket Cylinders 2003-2012
Komatsu PC138 PC138-2, PC138-3 Main Hydraulic Cylinders 2004-2013
Komatsu PC160 PC160-7, PC160-8 All Hydraulic Cylinders 2002-2011
Komatsu PC200 PC200-7, PC200-8 Boom and Arm Cylinders 2001-2010
Komatsu PC210 PC210-7, PC210-8 Swing Motor, Travel Motor 2005-2014

Hydraulic System Specifications

Parameter Specification Tolerance Application
Cylinder Bore 120 mm +0.10/-0.00 mm Standard cylinder size
Rod Diameter 85 mm +0.00/-0.05 mm Chrome-plated rod
Operating Pressure 34.3 MPa (350 kg/cm²) ±2% System design pressure
Burst Pressure 68.6 MPa (700 kg/cm²) +10% Safety margin
Fluid Temperature -20°C to +80°C N/A Operating range


Decompose pictures



Parts list
NO Number Name Qty
K 707-99-64150 SERVICE KIT 1
707-09-16022 CYLINDER ASS'Y 1
1 707-18-16050 • CYLINDER,(I) 1
2 707-29-16210 • HEAD,CYLINDER 1
3 07177-01435 • BUSHING 1
4 707-51-14110 • PACKING,ROD (KIT) 1
5 07000-15170 • O-RING (KIT) 1
6 07146-05172 • RING,BACK-UP (KIT) 1
7 198-63-93170 • SEAL,DUST (KIT) 1
8 07179-14160 • RING,SNAP 1
9 707-18-12011 • CYLINDER,(II) 1
10 07177-09040 • BUSHING 1
11 707-51-90211 • PACKING,ROD (KIT) 1
12 195-63-94170 • SEAL,DUST (KIT) 1
13 07179-13104 • RING,SNAP 1
14 07155-01640 • RING,WEAR (KIT) 1
15 07156-01620 • RING,WEAR 1
16 566-63-42460 • RING,SNAP 1
17 566-63-22291 • BEARING 2
18 04065-09030 • RING,SNAP 2
19 707-61-90171 • ROD,PISTON 1
20 07020-00000 • FITTING,GREASE 2
21 566-63-42361 • PISTON 1
22 07155-01230 • RING,WEAR (KIT) 1
23 707-44-12180 • RING,PISTON (KIT) 1
24 01010-61655 • BOLT 6
25 01643-41645 • WASHER 6
SERVICE KIT

Installation decomposition diagram
Pre-Installation Requirements:
Safety Preparation
Completely depressurize hydraulic system
Secure excavator on level ground with arm supported
Support arm cylinder properly during disassembly
Wear appropriate personal protective equipment
Workspace Preparation
Clean cylinder exterior thoroughly
Use clean, organized work area
Verify kit completeness before starting
Prepare proper seal installation tools

Installation Procedure:
Disassembly Steps
Mark cylinder components for reassembly alignment
Carefully remove gland nut and piston assembly
Document seal orientation and position
Clean all components with non-petroleum solvent
Seal Installation
Lubricate all seals with clean hydraulic fluid
Use seal installation tools - avoid sharp instruments
Ensure proper orientation of directional seals
Verify seals are fully seated in grooves
Reassembly Specifications
Gland nut torque: 750-800 Nm (553-590 ft-lbs)
Ensure proper rod alignment during assembly
Cycle cylinder slowly to distribute fluid

Commissioning Procedure:
Initial Operation
Cycle cylinder several times without load
Check for external leakage at all connections
Monitor hydraulic fluid temperature
Verify smooth arm movement
Performance Verification
Check for drift under load
Verify cylinder speed matches specifications
Monitor for unusual noises or vibration
Conduct operational testing with digging loads


Performance & Durability Data

Performance Parameter Value Test Method
Seal Service Life 4,500 operating hours ISO 7983
Friction Coefficient 0.07-0.11 ASTM D1894
Extrusion Resistance 42 MPa sustained ISO 1829
Compression Set <13% after 24h @ 100°C ISO 815
Abrasion Resistance >65,000 cycles ISO 4649



Frequently Asked Questions

A. When will get the items after I place order?
Q. Once your payment is confirmed,we will arrange the goods within 1~4 days; if not in stock, we will inform you before placing the order?

A. If I only know the excavator model, but can not offer parts No.,what should I do ?
Q. If possible, you can send us pictures of old products, nameplate or the size for reference.

A. How can you guarantee the quality??
Q. We will 100% test the goods before delivery. We also support video inspection.

A. How long will it take to delivery to my address??
Q. The normal delivery time is 3-7 days, depending on which country you are in.?

A : Which delivery method will you choose?
Q : By sea, air or express(DHL,Fedex,TNT, UPS, EMS etc.),Sometimes we will arrange as the customer's demand.

A: What's package? Can you give me the package according my requirement??
Q. We usually packed by standard exported box or carton. And yes we can pack as per your requirement.

A: Can the price be cheaper?
Q: Of course, you will be offered a good discount for a big amount.

A: Why should I choose to buy from you?
Q:Our advantages: 100% quality assurance, develop and manufature follow original ones;Quick response within 24 hours; Small order allowed;Reasonable stock and timely delivery;Neutral packing, customized packing are allowed. Positive customer feedback from abroad market;Excellent after-sales service.
A : Which payment terms can you accept?
Q : Paypal. Western Union, Bank Transfer, T/T...


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