
Product Overview
This premium Hydraulic Cylinder Seal Kit is engineered for professional B2B buyers and distributors seeking reliable, high-performance replacement parts for heavy machinery. Designed to meet or exceed OEM specifications, this comprehensive kit ensures optimal hydraulic system integrity and longevity. We specialize in global export, serving key industrial markets across North America, Europe, the Asia-Pacific region, and the Middle East with efficient logistics and trade compliance.
Key Features & Benefits
- Superior Durability: Manufactured from high-grade materials resistant to wear, pressure, and temperature extremes for extended service life.
- Optimal Sealing Performance: Precision-engineered to prevent hydraulic fluid leakage and maintain consistent system pressure, ensuring maximum excavator efficiency.
- Complete Kit Solution: Includes all necessary piston seals, rod seals, wipers, and O-rings for a full cylinder overhaul, saving procurement time.
- Easy Installation: Designed for precise fitment, reducing downtime during maintenance and repair operations.
- Cost-Effective Maintenance: A reliable aftermarket alternative that helps control maintenance costs without compromising on equipment performance or safety.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Hydraulic Cylinder Seal Kit |
| Application | Excavator Hydraulic Cylinders (Boom, Arm, Bucket) |
| Kit Includes | Piston Seals, Rod Seals, Wiper Seals, O-Rings, Backup Rings, Gaskets |
| Primary Material | High-Performance Polyurethane (PU) / Nitrile Rubber (NBR) |
| Temperature Range | -30°C to +110°C (-22°F to +230°F) |
| Pressure Rating | Compatible with standard high-pressure hydraulic systems |
| Color | Standard (Typically Black, Brown) |
OEM Cross-Reference
This kit is designed as a direct replacement for multiple OEM part numbers. Please verify specific cylinder model for exact fitment. Common compatible references include:
- Komatsu: 600-211-5130, 600-211-5150
- Caterpillar: 7W-4245, 3P-8007
- Hitachi: 4124796, 4124797
- Volvo: 14600339
- Aftermarket/Universal Kits: 962-089, KIT-UC-SEAL
Compatibility
This universal-style seal kit is designed to fit a wide range of standard hydraulic cylinders used in popular excavator models from major manufacturers including Komatsu, Caterpillar, Hitachi, Volvo, Doosan, and Hyundai. It is suitable for boom, arm, and bucket cylinders on mid-to-large size excavators. For precise application, always confirm the cylinder’s bore size, rod diameter, and the OEM part number being replaced.
Global Supply & Distribution
We are a trusted partner for international B2B procurement. Our robust supply chain ensures reliable stock availability and timely delivery to major global markets.
- Worldwide Shipping: We export via air and sea freight to all major industrial regions.
- Key Markets Served: North America (USA, Canada, Mexico), European Union (Germany, UK, Poland), Asia-Pacific (Australia, Japan, Southeast Asia), Middle East (UAE, Saudi Arabia), and South America.
- Fast Delivery Network: Efficient logistics to major ports and inland freight hubs, with consolidated container and LCL options available.
- Export Expertise: Full compliance with international shipping documentation, customs regulations, and quality certifications for seamless cross-border trade.
Quality Assurance
- Manufacturing Standards: Produced in ISO 9001 certified facilities using precision tooling and strict quality control protocols.
- Material Certification: Raw materials are sourced from reputable suppliers and tested for chemical composition and physical properties.
- Performance Testing: Seals undergo sample testing for pressure endurance, temperature cycling, and fluid compatibility.
- Warranty: Backed by a standard warranty against manufacturing defects. Specific terms are provided with the commercial invoice.
FAQ
Q1: How do I confirm this seal kit is compatible with my specific excavator cylinder?
A1: Compatibility is determined by the cylinder’s bore size, rod diameter, and the OEM part number you are replacing. We strongly recommend providing the machine model, cylinder serial number, or the old seal kit’s part number for verification before ordering to ensure a perfect fit.
Q2: What is included in the kit, and is it sufficient for a complete cylinder reseal?
A2: This is a comprehensive kit designed for a full rebuild. It typically includes all dynamic and static seals: piston seals, rod seals, wiper/scraper seals, O-rings, and backup rings. For most standard applications, no additional seals are required. Always inspect the cylinder gland and other components for wear during disassembly.
Q3: What are the storage and handling recommendations for these seals?
A3: To preserve integrity, store kits in a cool, dry place away from direct sunlight, ozone sources, and extreme temperatures. Keep seals in their original packaging until use. During installation, ensure the cylinder bore and rod are clean, smooth, and free of scratches. Use appropriate hydraulic fluid for lubrication during assembly.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .