
Product Overview
This Genuine Komatsu Bucket Cylinder Seal Kit is engineered to restore optimal hydraulic performance and prevent fluid leaks in your excavator’s bucket cylinder. We specialize in the global supply of OEM-quality heavy machinery parts, serving major industrial markets across North America, Europe, the Asia-Pacific region, and the Middle East with reliable shipping and logistics support.
Key Features & Benefits
- OEM Quality: Manufactured to meet or exceed original Komatsu specifications for a perfect fit and reliable performance.
- Enhanced Durability: Made from high-grade materials resistant to wear, pressure, and hydraulic fluid degradation for extended service life.
- Leak Prevention: Complete seal set ensures a tight, leak-free seal to maintain proper hydraulic pressure and cylinder efficiency.
- Reduced Downtime: Easy-to-install kit allows for quick cylinder overhaul, minimizing machine downtime and maximizing productivity.
- Cost-Effective Maintenance: A complete kit solution that is more economical than sourcing individual seals, providing comprehensive cylinder repair.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | YA00011420PS |
| OEM Part Number | 8-98023-526-0 |
| Application | Bucket Cylinder Seal Kit |
| Compatible Machine Models | Komatsu ZX120, ZX130 Excavators |
| Component Type | Seal Kit (Includes piston seals, rod seals, wipers, O-rings, and backup rings) |
| Material | High-performance Nitrile (NBR) / Polyurethane compounds |
| Condition | New, Genuine Quality |
OEM Cross-Reference
This genuine quality seal kit directly replaces the following OEM part numbers:
- Komatsu: YA00011420PS, 8-98023-526-0
It is also fully compatible with aftermarket kits designed to these specifications.
Compatibility
This seal kit is designed specifically for the bucket (arm) hydraulic cylinder on the following excavator models:
- Komatsu: ZX120-3, ZX120-3G, ZX120-5, ZX130-3, ZX130-5 and equivalent series.
Please verify your machine’s model and cylinder serial number before ordering to ensure correct fitment.
Global Supply & Distribution
We are a trusted supplier in the global heavy equipment parts network. Our capabilities include:
- Worldwide Shipping: Reliable export to all major continents via air and sea freight.
- Key Markets Served: Direct supply to contractors, mines, and dealers in North America (USA, Canada), Europe (UK, Germany, Poland), Asia-Pacific (Australia, Indonesia, Japan), and the Middle East (UAE, Saudi Arabia).
- Efficient Logistics: Fast delivery to major industrial ports and logistics hubs, with consolidated container options available for bulk orders.
- Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) for smooth customs clearance.
Quality Assurance
We stand behind the quality and performance of every part we supply.
- Manufacturing Standards: Components are produced using precision tooling and strict quality control processes to ensure dimensional accuracy and material integrity.
- Warranty: Backed by a standard warranty against manufacturing defects. Contact our support team for specific warranty terms.
- Testing: Seals are tested for hardness, tensile strength, and fluid compatibility to perform under high-pressure hydraulic conditions.
FAQ
Q1: Is this a complete kit for a full cylinder rebuild?
A1: Yes, this is a comprehensive seal kit designed for a complete overhaul of the Komatsu bucket cylinder. It typically includes all necessary piston seals, rod seals, wipers, O-rings, and gaskets required for the job. Always check the contents against your cylinder’s disassembled parts.
Q2: How do I confirm this kit fits my specific ZX120/130 excavator?
A2: The primary fitment is confirmed by the part numbers YA00011420PS or 8-98023-526-0. For absolute certainty, we recommend matching these numbers with your machine’s service manual or the original seal kit removed from the cylinder. Providing your machine’s serial number to our technical team can also help verify compatibility.
Q3: What are the storage and handling recommendations for this seal kit?
A3: To preserve the integrity of the seals, store the kit in a cool, dry place away from direct sunlight, ozone sources, and extreme temperatures. Keep the seals in their original packaging until ready for installation. Clean the cylinder housing thoroughly and lubricate seals with compatible hydraulic fluid during installation to prevent damage.
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 .