Product Overview

This is a premium K25 piston ring set, engineered as a direct replacement for original Nissan engine components. Designed for durability and optimal engine performance, this set is essential for engine rebuilds, overhauls, and maintenance. We specialize in global B2B supply, serving major automotive markets across North America, Europe, Asia-Pacific, and the Middle East with reliable shipping and export compliance.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and reliable performance.
• Enhanced Durability: Made from high-grade materials to withstand high temperatures and pressures, reducing wear and extending engine life.
• Optimal Sealing: Ensures effective compression and oil control, restoring engine power and efficiency.
• B2B Ready Packaging: Supplied in bulk or individual sets suitable for workshops, distributors, and large-scale resellers.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the following OEM part numbers:

• 12033-AE003
• 12033-4E110
• 12003-1E400

Please verify the specific number from your original part or engine manual for confirmation.

Compatibility

This K25 piston ring set is designed for specific Nissan engine models. It is crucial to cross-reference the OEM part numbers above with your engine’s requirements. Typically fits a range of Nissan commercial and industrial engines where the specified OEM numbers are applicable.

Global Supply & Distribution

We are a professional B2B supplier with extensive experience in international automotive parts logistics. Our capabilities include:

• Worldwide Shipping: Reliable export to all major continents and markets.
• Major Port Delivery: Efficient container and LCL shipments to key logistical hubs in Rotterdam, Los Angeles, Singapore, Dubai, and more.
• Market Expertise: Deep understanding of import regulations and certification requirements for North America (DOT), Europe (ECE), and the Middle East.
• Bulk & Wholesale Focus: Competitive FOB/CIF pricing and support for large-volume orders tailored for distributors and workshop chains.

Quality Assurance

Our commitment to quality ensures you receive reliable engine components:

• Manufacturing Standards: Produced in ISO-certified facilities using precision tooling and controlled processes.
• Rigorous Testing: Components undergo dimensional checks, material analysis, and performance validation to meet or exceed industry standards.
• Warranty: Backed by a standard manufacturer warranty against defects. Specific terms are provided with the commercial invoice.

FAQ

Q1: How do I confirm this piston ring set fits my specific Nissan engine?
A1: The most reliable method is to match the part number stamped on your original piston rings or listed in your engine’s service manual with the OEM numbers provided: 12033-AE003, 12033-4E110, or 12003-1E400. The engine model alone (e.g., TD27, FD35) may require cross-referencing.

Q2: Are these rings pre-gapped, or is filing required during installation?
A2> While manufactured to precise tolerances, professional engine rebuild practice always involves checking and, if necessary, adjusting the ring end-gap within the specified service limits for your specific engine block and cylinder bore condition. We recommend consulting the engine rebuild manual.

Q3: What documentation is provided for international B2B shipments?
A3> For smooth customs clearance, we provide all necessary commercial documentation, including a detailed commercial invoice, packing list, and certificate of origin. Material certifications (Mill Certificates) can be supplied upon request for larger orders.

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 .