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E320C-B Excavator Boom Cylinder Seal Kit Hydraulic Repair Parts for Caterpillar Heavy Duty CAT Seals
E320C-B Excavator Boom Cylinder Seal Kit Hydraulic Repair Parts for Caterpillar
Product Details
E320C-B Boom Seal Kit – Premium Hydraulic Cylinder Seal Set for Caterpillar Excavator
The E320C-B Boom Seal Kit is a high-performance hydraulic cylinder repair kit designed specifically for Caterpillar E320C-B excavators. This complete kit includes high-quality seals, wipers, o-rings, and wear rings to ensure reliable performance, leak prevention, and long service life in tough working environments.
Engineered to withstand high pressure, oil, heat, and heavy loads, the seal kit restores boom cylinder functionality and protects internal components from damage. It is manufactured with durable materials such as PU, PTFE, NBR, and fabric-reinforced rubber, meeting OEM or aftermarket standards.
E320C-B Boom Seal Kit – Product Parameters
| Parameter |
Details |
| Model |
Caterpillar E320C-B |
| Application |
Boom Cylinder (Main Arm Hydraulic Cylinder) |
| Seal Kit Type |
Hydraulic Cylinder Seal Kit |
| Material Composition |
PU (Polyurethane), NBR (Nitrile Rubber), PTFE (Teflon), Fabric Reinforced Rubber |
| Working Pressure |
Up to 35 MPa |
| Temperature Range |
-30°C to +120°C (-22°F to +248°F) |
| Function |
Prevents internal/external leakage, reduces wear, maintains pressure |
| Structure Includes |
Rod seals, piston seals, wear rings, buffer seals, dust seals, O-rings |
| OEM Part Compatibility |
Compatible with Caterpillar OEM standards (exact part numbers vary) |
| Seal Color |
Typically Blue, Green, Brown, or Black (depends on material & supplier) |
| Installation Position |
Inside the hydraulic boom cylinder (front & rear ends) |
| Package Includes |
Full seal kit for 1 boom cylinder |
| Weight (Approx.) |
0.5–1.0 kg per kit |
Key Features
-
High abrasion resistance for long-term use
-
Oil and heat resistant materials
-
OEM quality or high-grade aftermarket option
-
Easy to install, precise fit
-
Improves cylinder performance, reduces downtime
Product Display
Used in the following applications
| Komatsu |
PC45MR PC56-7 PC60-7 PC70-8 PC60-6 PC40-7 PC40-8 PC60-2 PC60-5 PC60-6 PC75 |
| PC100-5 PC120-6 PC150-5 PC130-7 PC200-3 PC200-6 PC200-8 PC210LC-8 PC220-8 |
| PC240LC-8 PC300-3 PC300-5 PC300-6 PC300-7 PC360-7 PC400-3 PC400-5 PC600-6 |
| Hitachi |
ZX60 ZX70 ZX100M-1 ZX120 EX60 EX60-2 EX60-3 EX60-7 EX100-1 EX120-5 EX120-6 |
| ZX200 ZX200-3 ZX230 ZX240 ZX240-3 EX200-1 EX200-2 EX200-3 EX200-5 EX200-6 |
| EX210-2 EX220-2 EX220-3 EX225-5 EX270 EX300-1 EX300-2 ZX330-3 ZX450H EX300-5 |
| |
312 315 302.5C 324D 320D 330 329D |
| E200B E240 320 320C |
| Hyundai |
R60-7 130 R200-5 R215-7 R225-9 R210W-7 R220-5 R250-7 R260-7 R290-3 R300-5 |
| R375-7 R305-7 R335-7 R300-3 R450 |
| Kobelco |
SK07 SK60 SK75 SK60-8 SK120 SK120-3 SK130 SK200-8 SK200-6 SK250-8 SK210-6 |
| SK220-1 SK230-6 SK250-6 SK200-8 SK210-8 SK300-3 SK330-6 |
| Doosan / Daewoo |
DH60-7 DH80-7 DH130 DH215-7 DH215-9 DH220-5 DH220-2 DH220-3 DH225-7 DH280-3 |
| DH150 DH300 DH330-3 DH300-5 DH420LC-7 DH300-7 |
| EC |
EC210BLC EC140BLC EC290B EC360B |
| 210 240 |
| Sumitomo |
SH120 SH75 SH100 S280 S280FA S280F2 S281 S340 S265F2 |
| SH200 SH200A3 |
| Kato |
HD550 HD450 HD800-7 HD400SEM HD700-2 HD700-5 HD700-7 HD800SD-5 HD900-7 |
| HD820-2 HD820 HD770-1 HD770-2 HD880-1 HD850 HD250 HD400 |
| Other brands |
CLG200 Sunward60 Sunward70 |
| XG820 |
| Tips |
If you need custom-made seal kit,please contact us to get more information.Welcome |
Company Description
ZHIPAN oil seal Company supplies various brands and models of excavators supporting ARM, BOOM and BUCKET seal kits, crushing hammer, hydraulic pump, walking motor, rotary motor, center joint, rotary joint, joystick, expansion sealing kit.
Products available for: VOLVO, CATERPILLAR, KOMATSU, HITACHI, KATO, SUMITOMO, KOBELCO, DAEWOO/DOOSAN, HYUNDAI, CASE ,JCB, KUBOTA , SANY, Longgong,LIUGONG,XCMG, ZOOMLION and other imported or joint venture excavators
Material : phenolic fabric, PU, NBR, FKM, PTFE, POM ect
Components: cylinder seal kits typically include a variety of seals such as rod seals, piston seals, wiper seals, and O-rings.
Applications: These kits are tailored for hydraulic cylinders, providing a comprehensive set of seals to ensure optimal performance and longevity.
Specifications:
1. Seals you see in the picture is made in China, and the quality can be promised
2. Safe &carefully. Standard export carton package and sending port is up to your need and requirement, To send the goods as soon as we can to save you time .
3. Our hydraulic cylinder seal kits which are suit to Excavator for Komatsu, Kobelco,Hitachi, Sumitomo, Kato, Daewoo, Hyundai, Volvo,caterpillar.
Application Model
Shippment and Packing
| Package: 1 set seal kit in one ppy bag (we have pp ,carton,iron bags and boxes as customer requirement) |
| Delivery Time:2-3 days |
| MOQ:5 sts |
| Shipment:by air/sea/express(DHL/FEDEX/TNT/UPS/EMS). |
Why choose ZHIPANSEAL seal kit
1.Experience. We have been selling in the aftermarket for nearly 20 years, we know more about what kind of seal kits the machine needs under bad work conditions.
2.The accuracy of the dimensions.The same part number as the OEM, easy to query and purchase.
3.Price. We can beat all OEM parts in value,while as stated above the qulity of the parts will remain the same.
4.Lead Times. ZHIPANSEAL products have been exported for more than 17 years, and our extensive export experience can help you solve various transportation problems. We can ensure fast and efficient lead times across all ZHIPANSEAL Parts.
What is a Seal Kit?
A seal kit is a set of sealing components used to repair or maintain hydraulic or pneumatic cylinders in machinery. It typically includes various types of seals such as:
✅ Rod seals – prevent fluid leakage from the cylinder
✅ Piston seals – maintain pressure within the cylinder
✅ Dust seals / wipers – keep dirt and contaminants out
✅ Wear rings / guide rings – prevent metal-to-metal contact
✅ O-rings & backup rings – ensure tight sealing and support
FAQ
Q:May I have a trail order?
A: Of course! Trail order is necessary for new customers. MOQ is small.
Q:What's the time of delivery?
A: Basic item we can send 3-7 days since we have stock. Some small order we will send 10-20 days accordingly. Bulk orders we will deliver 20-40 days accordingly.
Q:Can we believe in you and your parts?
A:
1:Productive capacity
We own our seal factory. That means we can meet your quality well at a competitive price accordingly.
2.Product promise
1) Our delivery time will be just 10-15 working days
2) After-sales Service : Ensure to solve your problem and achieve better
3.Experience
Our company is a professional manufacture in the excavator seals and seal kit in china and has a good reputation all over the world.
Q: Quality of the products have a guarantee?
A: Please be assured, all products we sell would go through strict testing at the factory prior.
Q: Where is your stores located? How can I visit there?
A: Located in Guangzhou city, Guangdong Province, China.
Welcome to visit us! We accept customized according to your sample, welcome to your order.
Service
2. We have advanced technology and 100% pre-delivery testing.
3. Fast delivery and competitive price.
4. The larger the quantity you order, the more favorable the price we can offer and the faster the delivery.
5. We have a professional team to provide you with professional services.
6. We can provide you with second-hand and new, OEM and high-quality parts made in China.
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