
Product Overview
This is a high-quality aftermarket piston engineered for the Kubota V2403 diesel engine. Designed to meet or exceed OEM specifications, it is the ideal replacement part for heavy machinery requiring reliable performance. We specialize in global B2B supply, serving major industrial markets across North America, Europe, the Middle East, and Asia-Pacific with efficient logistics and export compliance.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM dimensions (OEM Size) for a perfect fit and optimal compression.
- Enhanced Durability: Constructed from high-grade materials to withstand the high-pressure and thermal stresses of diesel operation.
- Cost-Effective Solution: Provides OEM-level performance and reliability at a competitive price point, reducing total cost of ownership.
- Rigorous Quality Control: Each piston undergoes stringent testing, supported by machinery test reports and video outgoing-inspection records.
- Guaranteed Performance: Backed by a solid 6-month warranty, ensuring peace of mind for your operations.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 1J890-21110 |
| Engine Model | Kubota V2403 |
| Type | Piston |
| Engine Type | Diesel |
| Size | OEM Size |
| Weight | 2 kg |
| Warranty | 6 Months |
| Place of Origin | Guangdong / Guizhou, China |
| Selling Units | Single Item |
OEM Cross-Reference
Primary OEM Part Number: 1J890-21110
This part is a direct replacement for the genuine Kubota piston with the above part number. Always verify the part number from your original component or engine manual before ordering.
Compatibility
This piston is specifically designed for the Kubota V2403 diesel engine. This engine is commonly found in a wide range of industrial and construction machinery, including:
- Excavators
- Trucks
- Forklifts
- Bulldozers
- Buses
- Loaders
- And other heavy-duty equipment
For specific model and year fitment, please consult your equipment’s service manual or contact our technical support team with your engine serial number.
Global Supply & Distribution
We are a professional exporter of heavy machinery engine parts with extensive experience in international logistics and trade documentation. Our supply chain is optimized for fast, reliable delivery to key global markets.
- Worldwide Shipping: We ship to all major industrial regions, including North America (USA, Canada, Mexico), Europe (Germany, UK, Poland, Italy), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Japan, Southeast Asia).
- Efficient Logistics: We ensure timely delivery to major seaports and inland freight hubs. Standard and express shipping options are available.
- Trade Compliance: All shipments are prepared with complete and accurate commercial invoices, packing lists, and certificates of origin to ensure smooth customs clearance.
Quality Assurance
Our commitment to quality is integral to our manufacturing process, ensuring you receive a reliable and high-performance component.
- Manufacturing Standards: Produced in ISO-certified facilities using advanced precision machining.
- Comprehensive Testing: Every batch is subject to dimensional checks, material analysis, and performance validation. A machinery test report is available upon request.
- Visual Inspection: Video outgoing-inspection provides documented proof of the product’s condition prior to shipment.
- Warranty: This product is covered by a 6-month warranty against manufacturing defects, guaranteeing its quality and durability.
FAQ
Q: How do I confirm this piston will fit my specific Kubota V2403 engine?
A: The most reliable method is to cross-reference the part number. Please check the part number stamped on your original piston or in your engine’s service manual against our part number 1J890-21110. Providing your engine’s serial number to our team can also help confirm compatibility.
Q: Is this piston sold as a single unit or as part of a set?
A> This piston is sold as a single item. For a complete engine overhaul, you will typically need to purchase a set equal to the number of cylinders in your V2403 engine. Please inquire for volume pricing.
Q: What should I check during installation to ensure proper performance?
A> Prior to installation, always: 1) Clean the cylinder liner thoroughly. 2) Measure the piston clearance as specified in the service manual. 3) Ensure piston rings are correctly gapped and installed in the proper order and orientation. 4) Lubricate the piston and rings with clean engine oil during assembly. We recommend professional installation by a qualified mechanic.
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 .