
Product Overview
This Ya00001398 Excavator Bucket Sealing Kit is a premium aftermarket solution designed for high-performance Komatsu excavator models. Engineered for durability and optimal sealing performance, this kit is essential for maintaining hydraulic integrity and operational efficiency in demanding construction and mining environments. We specialize in global B2B supply, serving major industrial markets worldwide with reliable parts and expert logistics support.
Key Features & Benefits
- Premium Sealing Performance: Manufactured from high-grade materials to ensure a perfect seal, preventing hydraulic fluid leaks and maintaining consistent bucket cylinder pressure.
- Enhanced Durability: Resistant to wear, abrasion, and extreme pressure, providing a long service life even under continuous heavy-duty operation.
- Precision Fitment: Designed to exact OEM specifications for a hassle-free installation, ensuring compatibility and reliable performance without modification.
- Operational Efficiency: Helps maintain optimal hydraulic system performance, reducing downtime and preventing costly damage to cylinder rods and barrels.
- Cost-Effective Maintenance: A reliable aftermarket alternative that delivers OEM-level quality, helping to control maintenance budgets without compromising on equipment reliability.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | Ya00001398 |
| Compatible Models | Komatsu ZX330-3, ZX350-5G, ZX330-5G, ZX330-5B |
| Application | Excavator Bucket Cylinder Sealing |
| Kit Type | Complete Sealing Kit (Includes seals, O-rings, backup rings as required) |
| Condition | New, High-Quality Aftermarket |
OEM Cross-Reference
This sealing kit is a direct replacement for the corresponding OEM seal kit used in the specified Komatsu excavator models. While the primary reference is part number Ya00001398, it is engineered to match the fit, form, and function of the original Komatsu component. For precise verification, always cross-reference with your machine’s service manual or existing seal kit.
Compatibility
This kit is specifically designed for the bucket cylinder on the following Komatsu hydraulic excavator models:
- Komatsu ZX330-3
- Komatsu ZX350-5G
- Komatsu ZX330-5G
- Komatsu ZX330-5B
It is recommended for general maintenance, overhaul, and repair of the bucket cylinder assembly on these machines. Always verify the model and serial number of your equipment before ordering.
Global Supply & Distribution
We are a trusted global supplier for construction and mining equipment parts. Our logistics network ensures efficient delivery to key industrial regions worldwide.
- Worldwide Shipping: We export to North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
- Major Port Delivery: Fast containerized and air freight services to major ports and logistics hubs including Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg.
- B2B Expertise: Extensive experience in international trade, documentation, and compliance to ensure smooth customs clearance.
- Stock Availability: Maintained inventory for reliable supply and prompt dispatch to minimize your equipment downtime.
Quality Assurance
Our commitment to quality ensures you receive parts that meet the highest standards for performance and reliability.
- Manufacturing Standards: Produced in ISO-certified facilities using advanced manufacturing processes and quality-controlled materials.
- Rigorous Testing: Each batch undergoes dimensional checks and material analysis to ensure compliance with original specifications.
- Performance Warranty: Backed by a standard warranty against manufacturing defects, providing peace of mind for your investment.
- Technical Support: Our specialist team is available to provide compatibility confirmation and technical assistance for B2B clients.
FAQ
Q: How do I confirm this seal kit is the correct part for my Komatsu excavator?
A: The primary identifier is your machine’s model number (e.g., ZX330-3). We strongly recommend also checking your equipment’s serial number and the part number of the existing seal kit or cylinder assembly. Our technical team can assist with cross-referencing for B2B orders.
Q: Is this a complete kit for a bucket cylinder rebuild?
A: Yes, the Ya00001398 is a complete sealing kit. It contains all the necessary seals, O-rings, and wear rings required for a standard overhaul of the bucket cylinder on the compatible Komatsu models. It does not include piston rods, barrels, or other hardware.
Q: What are the recommended steps for installation to ensure optimal performance?
A: For best results: 1) Thoroughly clean the cylinder housing and piston rod. 2) Lubricate all seals with clean hydraulic fluid during installation. 3) Use proper tools to avoid damaging the seals. 4) Follow the manufacturer’s service manual for torque specifications and assembly sequence. Proper installation is critical for seal longevity and system performance.
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 .