Name: COGENG 707-99-34260 Komatsu Main Pump Hydraulic Seal Kit
Brand: Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revol
Availability: InStock
Rating: 5 (1 reviews)

Product name: Komatsu Cylinder Seal Kit
Part No: 707-99-34260 7079934260
Size：55MM / 105MM
Model Number:For PC200-6 PC300-6 WA320-5 D65EX-12
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

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Desciption

Technical Constants & Performance Data

Parameter	Specification	Testing Standard
Maximum System Pressure	42 MPa (6,092 PSI)	ISO 10766
Rotational Speed	Up to 2,200 RPM continuous	ISO 10767-4
Temperature Range	-40°C to +130°C (-40°F to +266°F)	ASTM D2000
Shaft Diameter Range	40-80mm (application specific)	ISO 286-2
Pressure Differential	Vacuum to 42 MPa	ISO 10766
Seal Material Hardness	75-95 Shore A (component specific)	ASTM D2240
Friction Torque	1.5-3.5 N·m at 2,000 RPM	Proprietary test method
Thermal Conductivity	0.28-0.38 W/m·K	ASTM E1225
Cavitation Resistance	Withstands 0.95 bar absolute pressure	ISO 10767-3
Chemical Compatibility	Resists AW hydraulic fluids, including synthetics	ASTM D471
Shaft Surface Speed	Up to 12 m/s continuous	ISO 6194
Pressure-Velocity (PV)	5.0 MPa·m/s maximum	ISO 13738
Internal Leakage Control	Restores to within 5% of new pump specification	ISO 4409
Service Life	5,000-8,000 hours in typical service	Field validation data

Primary Pump Seals

Component	COGENG Part Number	Material	Dimensions	Special Features	Quantity
Main Shaft Seal	CG-MSS-34260-01	FKM with PTFE face	ID: 40-80mm (varies)	Double-lip, pressure-balanced	1
Case Drain Seal	CG-CDS-34260-01	HNBR/FKM composite	ID: specific to pump	Handles intermittent pressure spikes	1
Port Plate Seals	CG-PPS-34260-01	Reinforced polyurethane	Pump specific	High-pressure, low compression set	9
Swashplate Piston Seals	CG-SPS-34260-01	HNBR with Aramax™	Piston diameter specific	Low friction, high wear resistance	9
Control Piston Seals	CG-CPS-34260-01	Polyurethane (EU)	Control piston specific	Precise control, minimal stiction	3

Specialized Pump Components

Component	Function	Material	Technical Specification
Shaft Sleeve	Wear surface for shaft seal	Hardened steel 52100	60-62 HRC, Ra 0.1-0.2µm finish
Bearing Isolator	Prevents grease contamination	Dual-material composite	Separates grease and hydraulic zones
Pressure Plate Seal	Cylinder barrel interface	Carbon-filled PTFE	High thermal conductivity
Servo Piston Seals	Pump control mechanism	HNBR with low friction coating	±0.5% dimensional tolerance

Gaskets & Static Seals

Component Type	Material	Thickness	Quantity	Application
Front Cover Gasket	Fiber-reinforced composite	0.5mm ±0.05	1	Pump housing interface
Rear Cover Gasket	Fiber-reinforced composite	0.5mm ±0.05	1	Control section interface
Port Plate Gasket	Copper-asbestos alternative	0.3mm ±0.03	1	High-pressure interface
O-Ring Set	FKM (Grade 75)	AS568 series	15	Various static connections
Dowty Seals	HNBR with metal washer	Size specific	6	High-pressure pipe connections

Parts list

NO	Number	Name	Qty
K01	203-32-05131	Service Kit, Shoe Bolt and Nut
	203-32-51241	• Bolt	50
	203-32-61220	• Nut	50
K02	707-99-22300	Seal Kit, Hydraulic Cylinder
	02896-61009	• O-ring	2
	07000-12080	• O-ring	1
	07000-13035	• O-ring	4
	07000-B2075	• O-ring	1
	07156-00810	• Ring, Wear	2
	707-35-10760	• Ring, Back-up	1
	707-44-80150	• Ring, Piston	1
	707-51-40650	• Ring, Buffer	1
	707-51-40860	• Packing, Rod	1
	707-56-40740	• Seal, Dust	1
K03	707-99-22310	Service Kit, Hydraulic Cylinder
	02896-61009	• O-ring	3
	07000-12060	• O-ring	1
	07000-12080	• O-ring	1
	07000-13035	• O-ring	4
	07000-B2075	• O-ring	1
	07156-00810	• Ring, Wear	2
	707-34-60080	• O-ring	1
	707-35-10760	• Ring, Back-up	1
	707-44-80150	• Ring, Piston	1
	707-51-40650	• Ring, Buffer	1
	707-51-40860	• Packing, Rod	1
	707-56-40740	• Seal, Dust	1
K04	707-99-34260	Seal Kit, Hydraulic Cylinder
	02896-61009	• O-ring	3
	07000-12105	• O-ring	1
	07000-B2100	• O-ring	1
	07145-00055	• Seal, Dust	4
	707-35-11010	• Ring, Back-up	1
	707-39-10510	• Ring, Wear	1
	707-44-10250	• Ring, Piston	1
	707-51-55650	• Ring, Buffer	1
	707-51-55860	• Packing, Rod	1
	707-56-55740	• Seal, Dust	1
K05	707-99-24760	Seal Kit, Hydraulic Cylinder
	02896-61008	• O-ring	2
	07000-12060	• O-ring	1
	07000-12090	• O-ring	1
	07000-13035	• O-ring	4
	07000-B2085	• O-ring	1
	07156-00912	• Ring, Wear	1
	707-34-60080	• O-ring	1
	707-35-10860	• Ring, Back-up	1
	707-44-90150	• Ring, Piston	1
	707-51-45650	• Ring, Buffer	1
	707-51-45860	• Packing, Rod	1
	707-56-45740	• Seal, Dust	1
K06	707-99-14990	Seal Kit, Hydraulic Cylinder
	02896-61009	• O-ring	2
	07000-12075	• O-ring	1
	07000-B2070	• O-ring	1
	07145-00040	• Seal, Dust	4
	707-35-10710	• Ring, Back-up	1
	707-39-75190	• Ring, Wear	1
	707-44-75150	• Ring, Piston	1
	707-51-40650	• Ring, Buffer	1
	707-51-40860	• Packing, Rod	1
	707-56-40740	• Seal, Dust	1
K07	707-99-15770	Service Kit, Hydraulic Cylinder
	02896-61009	• O-ring	2
	07000-12060	• O-ring	1
	07000-12075	• O-ring	1
	07000-B2070	• O-ring	1
	07145-00040	• Seal, Dust	4
	707-34-60080	• O-ring	1
	707-35-10710	• Ring, Back-up	1
	707-39-75190	• Ring, Wear	1
	707-44-75150	• Ring, Piston	1
	707-51-40650	• Ring, Buffer	1
	707-51-40860	• Packing, Rod	1
	707-56-40740	• Seal, Dust	1

Installation decomposition diagram

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...

Contact COGENG

📞 Phone: +86-185-2913-1515 🌐 Instagram

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#ExcavatorWiringHarness #ExcavatorThrottleMotor #ExcavatorSolenoidValve #ExcavatorSealKit

About us: Welcome to the official website of GAOGENG(COGENG) has their own high-quality mining machinery components famous factory . We specialize in the production and distribution of top-notch products such as Excavator Solenoid Valve, Pressure Switch, Revolution Sensor, Wiring Harness, Throttle Motor, Oil Pressure Switch, and Water Temp Sensor, specifically designed for renowned brands in the mining industry:
Caterpillar®,JohnDeere®,Komatsu®,Case®,Volvo®,Hitachi®,Sumitomo®,Doosan®,Hyundai®,
Liebherr®,JCB®.

Products: Excavator Solenoid Valve; Excavator Wiring Harness; Excavator Motors; Excavator Pressure Sensor; Excavator Engine Oil Sensor; Excavator Water Temp Sensor; Excavator Control Panel; Excavator Switch Parts

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hugo@cogeng.net

+86 18529131515

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