721-98-00710 7219800710 SEAL KIT, HYDRAULIC BUCKET CYLINDER PC228US-11 HB215LC-3
Price:
Negotiable
MOQ:
10
Delivery Time:
Within 5-15 days after getting your desposit
Brand:
OUB
Product Description
1. Quick Details of seal 721-98-00710:
| Part NO. | 721-98-00710 |
| Machine | PC200-8MO,PC210-11 |
| Size | OEM |
| Material | PU,RUBBER,PTFE,SPCC |
| Type | SEAL KITS |
2. 721-98-00710 parts on group :
| NO. | PART NO. | PRAT NAME | QTY |
| 1 | 134-32-61221 | Nut | 50 |
| 2 | 20Y-32-31210 | Bolt | 50 |
| 3 | 07000-B3030 | O-ring | 1 |
| 4 | 07000-B3035 | O-ring | 2 |
| 5 | 07000-B5080 | O-ring | 1 |
| 6 | 07000-B5120 | O-ring | 1 |
| 7 | 07145-00070 | Seal, Dust | 2 |
| 8 | 07145-00080 | Seal, Dust | 2 |
| 9 | 707-35-30800 | Ring, Back-up | 2 |
| 10 | 707-35-31210 | Ring, Back-up | 1 |
| 11 | 707-39-13150 | Ring, Wear | 2 |
| 12 | 707-44-13150 | Ring, Piston | 1 |
| 13 | 707-51-90650 | Ring, Buffer | 1 |
| 14 | 707-51-90860 | Packing, Rod | 1 |
| 15 | 707-56-90740 | Seal, Dust | 1 |
| 16 | 07000-B3030 | O-ring | 1 |
| 17 | 07000-B5085 | O-ring | 1 |
| 18 | 07000-B5125 | O-ring | 2 |
| 19 | 07002-62034 | O-ring | 1 |
| 20 | 07145-00080 | Seal, Dust | 4 |
| 21 | 707-35-30850 | Ring, Back-up | 2 |
| 22 | 707-35-31260 | Ring, Back-up | 3 |
| 23 | 707-39-13530 | Ring, Wear | 2 |
| 24 | 707-44-13250 | Ring, Piston | 1 |
| 25 | 707-51-95650 | Ring, Buffer | 1 |
| 26 | 707-51-95860 | Packing, Rod | 1 |
| 27 | 707-56-95740 | Seal, Dust | 1 |
| 28 | 07000-B3030 | O-ring | 1 |
| 29 | 07000-B5070 | O-ring | 1 |
| 30 | 07000-B5105 | O-ring | 1 |
| 31 | 07145-00070 | Seal, Dust | 2 |
| 32 | 20Y-70-23220 | Seal, Dust | 2 |
| 33 | 707-35-30700 | Ring, Back-up | 2 |
| 34 | 707-35-31060 | Ring, Back-up | 1 |
| 35 | 707-39-11530 | Ring, Wear | 2 |
| 36 | 707-44-11250 | Ring, Piston | 1 |
| 37 | 707-51-80650 | Ring, Buffer | 1 |
| 38 | 707-51-80860 | Packing, Rod | 1 |
| 39 | 707-56-80740 | Seal, Dust | 1 |
| 40 | 07000-13030 | O-ring | 1 |
| 41 | 07000-B5070 | O-ring | 1 |
| 42 | 07000-B5105 | O-ring | 1 |
| 43 | 07145-00070 | Seal, Dust | 2 |
| 44 | 20Y-70-23220 | Seal, Dust | 2 |
| 45 | 707-35-30700 | Ring, Back-up | 2 |
| 46 | 707-35-31060 | Ring, Back-up | 1 |
| 47 | 707-39-11530 | Ring, Wear | 2 |
| 48 | 707-44-11250 | Ring, Piston | 1 |
| 49 | 707-51-80650 | Ring, Buffer | 1 |
| 50 | 707-51-80860 | Packing, Rod | 1 |
| 51 | 707-56-80740 | Seal, Dust | 1 |
| 52 | 134-32-61221 | Nut | 50 |
| 53 | 20Y-32-31211 | Bolt | 50 |
| 54 | 07000-13030 | O-ring | 1 |
| 55 | 07000-B5085 | O-ring | 1 |
| 56 | 07000-B5125 | O-ring | 2 |
| 57 | 07002-12034 | O-ring | 1 |
| 58 | 07145-00080 | Seal, Dust | 4 |
| 59 | 707-35-30850 | Ring, Back-up | 2 |
| 60 | 707-35-31260 | Ring, Back-up | 3 |
| 61 | 707-39-13530 | Ring, Wear | 2 |
| 62 | 707-44-13250 | Ring, Piston | 1 |
| 63 | 707-51-95650 | Ring, Buffer | 1 |
| 64 | 707-51-95860 | Packing, Rod | 1 |
| 65 | 707-56-95740 | Seal, Dust | 1 |
3. 721-98-00710 picture:
4. Service part number :
| PART NO. | PART NO. | Part NO. |
| 707-35-52670 | 707-51-45640 | 707-99-75600 |
| 707-35-52690 | 707-98-25870 | 707-51-80640 |
| 707-35-52700 | 707-44-85180 | 707-98-36600 |
| 707-35-52740 | 707-44-10150 | 707-98-25870 |
| 707-35-52750 | 707-44-85150 | 707-98-25910 |
| 707-35-52760 | 707-44-90070 | 707-98-25920 |
| 707-35-52770 | 707-44-90080 | 707-98-25970 |
| 707-35-52780 | 707-44-90180 | 707-98-25980 |
| 707-35-52830 | 707-44-90150 | 707-98-26070 |
| 707-35-52860 | 707-44-95180 | 707-98-26100 |
| 707-51-65640 | 707-44-95150 | 707-98-26110 |
| 707-51-65650 | 707-44-10080 | 707-98-26120 |
| 707-51-70630 | 707-44-10180 | 707-98-37580 |
| 707-51-70650 | 707-98-60120 | 707-51-20250 |
| 707-99-77240 | 707-98-60121 | 707-35-52700 |
5. FAQ
Q: What do you think the saying that the rod seal is the most important of boom cylinder seal kit?
A: You are absolutely on the right track. If we are talking about what keeps the machine running safely and prevents a major mess on the job site, the rod seal is definitely the most critical component in a Komatsu boom cylinder seal kit.While the rod seal prevents external leaks, it doesn't work alone. A standard cylinder seal kit relies on a few other critical components to keep the rod seal from failing prematurely:
- Wiper Seal (Dust Seal):Scrapes dirt, mud, and water off the rod before it retracts into the cylinder.
- Buffer Seal:Absorbs sudden pressure spikes from heavy digging loads.
- Piston Seal:Separates the two internal chambers of the cylinder.
You are 100% right that the rod seal is the most critical for preventing external failure and catastrophic oil loss. However, when rebuilt, it is highly recommended to replace the wiper and buffer seals at the exact same time, as they act as the bodyguard for that all-important rod seal.
Q: How long can a properly installed seal kit last?
A: With clean hydraulic fluid, correct installation, and regular maintenance, the kit can last 5,000–10,000 operating hours. Lifespan is significantly reduced by contaminated fluid, excessive side loads, or high operating temperatures.
Q: Can I reuse old seals from the kit?
A: No, reusing old seals is never recommended. Even if they appear undamaged, they lose elasticity and develop hidden wear over time. Always install all new seals from the kit during a rebuild to ensure reliability.
Q: Can I reuse any of the old seals from the kit?
A: No, reusing old seals is never recommended. Even if they appear undamaged, they lose elasticity and develop hidden wear during operation. Always install all new seals from the kit during a rebuild.
6. Exhibition and Wearhous
Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Opal Machinery Parts Operation Department
Location
NO.212,Zhu ji rode,tian he distric,guangzhou,China
Contact Person
Vivian