COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems

COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit

Product name: Komatsu  Hydraulic Cylinder Service Kit  
Part No: 707-99-24650 7079924650
Size:40 mm / 75 mm
Model Number:For   D37EX D37PX  etc. 
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 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems
  • COGENG 707-99-24650 Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit,Excavator Solenoid Valve | Excavator Pressure Switch | Excavator Revolution Sensor | Excavator Wiring Harness | Excavator Throttle Motor --- COGENG High-Qulity Parts Service GAOGENG Provider,COGENG Komatsu D37EX-22 Dozer Specific Cylinder Seal Kit 707-99-24650 | Precision Engineered for 22-Series Crawler Dozer Hydraulic Systems

Desciption

Technical Constants & Performance Data

Parameter Specification Testing Standard
Operating Pressure Range 5-32 MPa (725-4,641 PSI) ISO 10766
Peak Pressure Handling 45 MPa (6,527 PSI) transient ISO 10767-1
Temperature Range -30°C to +120°C (-22°F to +248°F) ASTM D2000
Side Load Capacity 10% of rod diameter at 25 MPa SAE J1516 modified
Seal Material Density 1.30-1.38 g/cm³ ASTM D792
Compression Set ≤ 10% (70 hours @ 110°C) ASTM D395 Method B
Tensile Strength ≥ 18 MPa (2,611 PSI) ASTM D412
Elongation at Break ≥ 290% ASTM D412
Abrasion Resistance ≤ 75 mm³ loss (Taber, CS-17 wheel) ASTM D4060
Volume Swell ≤ 7% in AW46 (168 hrs @ 100°C) ASTM D471
Friction Coefficient 0.12-0.20 (optimized for dozer cycling) ASTM D1894 modified
Thermal Conductivity 0.29 W/m·K ASTM E1225
Specific Heat Capacity 1.86 kJ/kg·K ASTM E1269
Pressure Cycle Rating 250,000 cycles at 25 MPa ISO 10767-1
Contaminant Exclusion >98% efficiency for particles >10µm ISO 4548-12

Component Specifications Table

Primary Sealing Components

Component COGENG Part Number Material Composition Hardness D37EX-22 Specific Features Quantity
Blade Lift Piston Seal CG-BLPS-24650-01 HNBR with Kevlar® reinforcement 89 ± 2 Shore A Asymmetric design for lift loads 2
Blade Tilt Rod Seal CG-BTRS-24650-01 Polyurethane (AU) with graphite 91 ± 3 Shore A Optimized for tilt angle changes 2
Angle Cylinder Seal CG-ACSE-24650-01 HNBR/FKM composite 87 ± 2 Shore A Low friction for frequent adjustments 2
Dozer-Specific Wiper CG-DSWI-24650-01 Dual-density PU with scraper 94/80 Shore A Extra-wide for dozer conditions 1
Heavy-Duty Wear Band CG-HDWB-24650-01 Bronze-PTFE composite 63 ± 5 Shore D Increased width for stability 2

D37EX-22 Specific Components

Component Function Material Critical Specification Application Specificity
Blade Load Compensator Adjusts seal pressure under load Microcellular PU 85 ± 3 Shore A D37EX-22 load profile optimized
Tilt Angle Guide Maintains seal contact during tilt Oil-impregnated bronze 0.10-0.15mm oil capacity Matched to D37 tilt mechanism
Grading Impact Cushion Absorbs shock loads Energy-absorbing PU 88 ± 2 Shore A Tuned to D37 grading impacts
Contaminant Barrier Seal Prevents abrasive ingress PU with magnetic particles Captures >5µm ferrous particles Field condition protection

Support Components & Hardware

Component Type Material Specification Quantity D37EX-22 Application
Static O-Rings FKM (Grade 70) 8 Hydraulic connections
Port Seals HNBR with anti-extrusion 4 High-pressure ports
Backup Rings Glass-filled PTFE 6 Anti-extrusion protection
Gasket Set HNBR composite 1 Gland sealing
Thread Sealant PTFE paste 1 kit Fitting installation


Decompose pictures


Parts list

NO Number Name Qty
707-99-24650 SERVICE KIT 1
707-00-0A311 CYLINDER ASS'Y 1
1 707-11-90930 • CYLINDER 1
2 707-46-03020 • BUSHING 1
3 04065-07225 • RING,SNAP 2
4 07020-00900 • FITTING,GREASE 1
5 707-29-90601 • HEAD,CYLINDER 1
6 707-52-90220 • BUSHING 1
7 707-51-45030 • PACKING,ROD (KIT) 1
8 707-51-45640 • RING,BUFFER (KIT) 1
9 707-56-45580 • SEAL,DUST (KIT) 1
10 07179-12057 • RING,SNAP 1
11 07000-12085 • O-RING (KIT) 1
12 07146-02086 • RING,BACK-UP (KIT) 1
13 07000-12090 • O-RING (KIT) 1
14 721-58-45270 • ROD,PISTON 1
15 707-46-03020 • BUSHING 1
16 04065-07225 • RING,SNAP 2
17 07020-00900 • FITTING,GREASE 1
18 707-36-90360 • PISTON 1
19 07156-00912 • RING,WEAR (KIT) 1
20 707-44-90180 • RING,PISTON (KIT) 1
21 707-67-33010 • NUT 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...
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