
Product Overview
This high-performance RIK piston ring set is engineered for the Kubota V2403 diesel engine, a core component in industrial and agricultural machinery. We specialize in the global supply of genuine-quality engine parts, offering reliable shipping to major markets worldwide, including North America, Europe, Asia-Pacific, and the Middle East. This product is designed for B2B buyers, workshops, and equipment fleets seeking durable, direct-fit replacement parts.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and optimal sealing in the Kubota V2403 cylinder.
- Enhanced Durability: Made from high-grade materials to withstand high temperatures and pressures, ensuring long service life and reduced oil consumption.
- Optimal Performance: Designed to restore engine compression, maintain proper oil control, and maximize fuel efficiency in industrial applications.
- Complete Set: Includes all necessary rings (compression and oil control rings) for a full piston assembly overhaul.
- Reliable Quality: Produced under strict quality control standards to ensure consistency and reliability for demanding commercial use.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 1J881-21052 |
| Brand | RIK |
| Engine Model | Kubota V2403 |
| Part Type | Piston Ring Set (Full Set) |
| Material | High-grade Cast Iron / Steel Alloy (Coated) |
| Application | Industrial & Agricultural Diesel Engines |
| Condition | New, Aftermarket (OEM Quality) |
OEM Cross-Reference
This part is a direct replacement for the following OEM part numbers:
- Primary Part No.: 1J881-21052
- Kubota OEM: 1J881-21052
Note: Always verify the part number stamped on your original rings or consult your engine manual before ordering to ensure correct fitment.
Compatibility
This piston ring set is specifically designed for the Kubota V2403 diesel engine. This engine is commonly found in a wide range of industrial and agricultural equipment, including:
- Kubota Tractors (Various Models)
- Industrial Generators & Power Units
- Construction Equipment (e.g., Skid Steer Loaders, Excavators)
- Agricultural Machinery (e.g., Combines, Balers)
It is suitable for engines manufactured across multiple year ranges where the V2403 engine is installed. Compatibility is determined by the engine model, not the vehicle model.
Global Supply & Distribution
We are a trusted supplier in the global automotive and industrial parts network. Our logistics are optimized for international B2B trade.
- Worldwide Shipping: We export to all major regions, including North America (USA, Canada, Mexico), Europe (EU, UK), Asia-Pacific (Australia, Japan, Southeast Asia), the Middle East, and South America.
- Efficient Logistics: Fast container (FCL/LCL) and air freight options to major ports and industrial hubs like Los Angeles, Rotterdam, Singapore, and Dubai.
- Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) to ensure smooth customs clearance.
- Bulk Order Support: Dedicated support for wholesale and large-quantity orders with competitive landed cost calculations.
Quality Assurance
Our commitment is to supply parts that meet the performance demands of professional engine rebuilders and fleet operators.
- Manufacturing Standards: Produced in ISO-certified facilities using precision tooling and rigorous process controls.
- Material Certification: Raw materials are sourced from certified suppliers to ensure consistency and performance.
- Dimensional Testing: Each batch undergoes stringent dimensional checks to verify tolerances and fit according to engine specifications.
- Warranty: Backed by a standard warranty against manufacturing defects. Specific warranty terms are provided with the commercial invoice.
FAQ
Q: How do I confirm this is the correct piston ring set for my Kubota engine?
A: The most reliable method is to match the part number. Locate the part number stamped on your original piston rings or find the engine’s parts manual. This set replaces OEM number 1J881-21052 for the V2403 engine model specifically.
Q: Are these rings pre-gapped, or do they require filing during installation?
A> While manufactured to precise specifications, it is essential to check and adjust the ring end-gap during every professional engine rebuild. Always measure the gap in the specific cylinder bore it will be installed in, following the engine manufacturer’s service manual specifications, to ensure optimal performance and avoid engine damage.
Q: Do you provide technical support or installation guidelines?
A> We supply the component along with basic specification data. For detailed installation procedures, torque specifications, and engine rebuild protocols, you must refer to the official Kubota V2403 engine service manual. We recommend installation by a qualified technician familiar with diesel engine overhaul procedures.
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 .