Product name: Komatsu Hydraulic Cylinder Seal Kit
Part No: 707-98-52100 7079852100
Size：70MM / 120MM
Model Number:For GD825A-2E0
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
Technical Constants & Performance Data
| Parameter | Value / Specification |
|---|---|
| Maximum System Pressure | Up to 3,770 PSI (260 bar) |
| Temperature Range | -40°F to 225°F (-40°C to 107°C) |
| Fluid Compatibility | Mineral-based hydraulic oils, Komatsu Super Hydraulic Fluid (KSHV), synthetic HFDU fluids |
| Primary Seal Material | Polyurethane (AU), Cast Polyurethane (CU), Nitrile Rubber (NBR) |
| Seal Hardness (Dynamic) | 90-94 Shore A (Polyurethane) |
| Seal Hardness (Static) | 70 Shore A (NBR O-Rings) |
| Design Standard | Manufactured to meet or exceed Komatsu's original specifications for pressure holding and service life in grader applications. |
Exact Model Compatibility
| Komatsu Motor Grader Model | Specific Cylinder Application |
|---|---|
| Komatsu GD705A-4 | Ripper (Scarifier) Lift Cylinders |
| Note: | This kit is a direct replacement for Komatsu OEM part number 707-98-52100. It is designed specifically for the RIPPER LIFT CYLINDERS on the Komatsu GD705A-4 motor grader. Always verify your machine's model, serial number, and that you are servicing the ripper cylinder, not the blade lift or circle turn cylinders. |
Component Specifications Table
| Component Name | Material | Color | Durometer | Function |
|---|---|---|---|---|
| Main Piston Seal (U-Cup) | Polyurethane (AU) | Brown | 94 Shore A | Primary high-pressure dynamic seal on piston |
| Rod Seal (Step Seal) | Cast Polyurethane (CU) | Black | 92 Shore A | Main rod seal for pressure retention |
| Wiper/Scraper (Heavy-Duty) | Polyurethane (PU) | Black | 90 Shore A | Excludes dirt and abrasive soil particles |
| Buffer Ring | Polyurethane (CU) | Black | 90 Shore A | Protects rod seal from pressure spikes during ripping |
| O-Ring Kit (Assorted) | Nitrile Rubber (NBR) | Black | 70 Shore A | Static sealing for gland, end cap, ports |
| Wear Ring / Guide Band | Glass-Filled PTFE | Dark Brown | N/A | Centralizes piston, prevents metal contact |
| Backup Rings | Nylon 6.6 | Tan | N/A | Prevents extrusion of static O-rings |
Decompose picture
Parts list
|
NO |
Number |
Name |
Qty |
|
G1 |
707-03-X7300 |
CYLINDER GROUP |
1 |
|
==================== |
|||
|
235-63-25200 |
CYLINDER ASS'Y |
1 |
|
|
1 |
235-63-25240 |
• CYLINDER |
1 |
|
2 |
707-27-14010 |
• HEAD,CYLINDER |
1 |
|
3 |
07177-07030 |
• BUSHING |
1 |
|
4 |
707-51-70211 |
• PACKING,ROD (KIT) |
1 |
|
5 |
144-63-95170 |
• SEAL,DUST (KIT) |
1 |
|
6 |
07179-12084 |
• RING,SNAP |
1 |
|
7 |
07000-12135 |
• O-RING (KIT) |
1 |
|
8 |
07146-02136 |
• RING,BACK-UP (KIT) |
1 |
|
9 |
01010-61890 |
• BOLT |
8 |
|
11 |
235-63-25220 |
• ROD,PISTON |
1 |
|
12 |
07143-10707 |
• BUSHING |
1 |
|
13 |
07145-00075 |
• SEAL,DUST (KIT) |
2 |
|
14 |
707-36-14180 |
• PISTON |
1 |
|
15 |
707-44-14180 |
• RING,PISTON (KIT) |
1 |
|
16 |
07155-01435 |
• RING,WEAR (KIT) |
1 |
|
17 |
07165-15252 |
• NUT,NYLON |
1 |
|
18 |
235-60-17182 |
TUBE |
1 |
|
19 |
235-60-17192 |
TUBE |
1 |
|
20 |
07000-13032 |
O-RING |
2 |
|
21 |
01010-51035 |
BOLT |
8 |
|
22 |
01643-31032 |
WASHER |
8 |
|
23 |
232-60-54820 |
CLIP |
2 |
|
24 |
01010-51055 |
BOLT |
1 |
|
25 |
01580-11008 |
NUT |
1 |
|
26 |
01643-31032 |
WASHER |
1 |
|
27 |
235-60-17231 |
BAND |
1 |
|
28 |
235-60-17221 |
BAND |
1 |
|
29 |
01010-51030 |
BOLT |
2 |
|
30 |
01643-31032 |
WASHER |
2 |
|
31 |
07283-22236 |
CLIP |
1 |
|
32 |
01599-01011 |
NUT |
2 |
|
33 |
01643-31032 |
WASHER |
2 |
|
==================== |
|||
|
SERVICE KIT |
|||
|
K |
707-98-52100 |
SERVICE KIT,RIPPER CYLINDER |
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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