Product Overview

This is a premium replacement piston engineered for Yanmar 3TNE84 and 4D84 series industrial and marine diesel engines. As a leading global supplier, we provide reliable engine components to major markets worldwide, ensuring your machinery operates at peak performance with minimal downtime.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and optimal compression.
• Superior Durability: Constructed from high-grade aluminum alloy to withstand high thermal and mechanical stresses.
• Enhanced Performance: Designed for efficient combustion, contributing to stable engine power and fuel economy.
• Direct Replacement: Guaranteed compatibility, ensuring a straightforward installation process.
• Global Quality Standard: Produced under strict quality control systems to meet international demands.

Technical Specifications

OEM Cross-Reference

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

• 129002-22090 (Primary Number)
• 3TNE84-YW
• 3TNE84-YB
• 3TNE84-YBB
• 3TNE84-YBD
• 3TNE84-AK
• 4D84-3

Compatibility

This piston is designed for use in Yanmar diesel engines, commonly found in a variety of industrial and marine applications.

• Engine Models: Yanmar 3TNE84, 4D84 series engines.
• Typical Applications: Industrial generators, construction machinery (excavators, loaders), marine auxiliary engines, and agricultural equipment.
• Note: Always verify the specific engine model and serial number against your equipment’s service manual before ordering to ensure correct fitment.

Global Supply & Distribution

We are a trusted partner for B2B clients across the globe, specializing in efficient international logistics for automotive and industrial parts.

• Worldwide Shipping: We export to all major industrial regions including North America, Europe, the Asia-Pacific, the Middle East, Africa, and South America.
• Fast Delivery Network: Consolidated shipments to major ports and logistics hubs (e.g., Rotterdam, Los Angeles, Singapore, Dubai) ensure timely delivery.
• Export Expertise: Fully compliant with international trade regulations. All necessary commercial invoices, packing lists, and certificates are provided.
• Bulk & Container Orders: Optimized logistics for both LCL (Less than Container Load) and FCL (Full Container Load) shipments to reduce costs.

Quality Assurance

Our commitment to quality ensures you receive components that meet the highest standards for reliability and performance.

• Manufacturing Standards: Produced using advanced CNC machining and heat treatment processes to replicate OEM geometry and hardness.
• Rigorous Testing: Each piston undergoes dimensional inspection and visual quality checks to ensure it meets specified tolerances.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.

FAQ

Q1: Is this piston sold as a single unit or as a set for the entire engine?
A1: This listing is typically for a single piston unit. For a full engine set, please contact our sales team to arrange a bulk order for the required quantity (e.g., 3 for a 3TNE84 engine).

Q2: Do I need to order piston rings separately?
A2: This product is the piston assembly. Piston rings, pins, and circlips are usually sold separately. Please check our catalog for the corresponding ring set (e.g., for 129002-22090) to complete your overhaul kit.

Q3: What documentation is provided with international shipments?
A3> All international B2B shipments include full commercial documentation: Proforma/Commercial Invoice, Packing List, and Certificate of Origin. For specific country-of-origin requirements or other certificates, please inform us at the time of order.

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 .