Product Overview

This is a premium OEM-specification piston designed for Yanmar 3TNE78A and 3TNB78 series diesel engines. As a leading global supplier of heavy-duty engine components, we provide reliable parts for industrial machinery and commercial vehicles worldwide, with major markets across North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal engine performance.
• Enhanced Durability: Constructed from high-grade materials to withstand high compression and thermal stresses, ensuring long service life.
• Optimal Performance: Designed to maintain proper compression and combustion efficiency, contributing to fuel economy and reliable power output.
• Rigorous Quality Control: Each piston undergoes thorough inspection and testing, backed by a machinery test report and video outgoing-inspection documentation.
• Global Logistics Support: Streamlined export processes ensure reliable and timely delivery to major industrial hubs and ports worldwide.

Technical Specifications

OEM Cross-Reference

This piston directly replaces the following OEM part number:

• Yanmar: 119818-22080

It is the correct component for engines bearing the model designations 3TNE78A and 3TNB78.

Compatibility

This piston is engineered for Yanmar 3TNE78A and 3TNB78 diesel engines. These engines are commonly found in a wide range of industrial and commercial equipment, including:

• Excavators
• Trucks
• Forklifts
• Bulldozers
• Buses
• Loaders
• And other heavy machinery

Global Supply & Distribution

We specialize in the international export of genuine-quality engine components. Our established supply chain ensures efficient delivery to key markets:

• Worldwide Shipping: We ship to all major continents, including North America (USA, Canada, Mexico), Europe (Germany, UK, Poland, Italy), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Singapore, Japan).
• Fast Delivery to Hubs: Priority shipping is available to major logistical ports and industrial centers to minimize downtime for your operations.
• Export Expertise: With extensive experience in B2B international trade, we handle all documentation, customs compliance, and logistics, ensuring a smooth procurement process for global buyers.

Quality Assurance

Our commitment to quality is integral to our manufacturing process, providing you with reliable parts you can trust.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced precision machining.
• Comprehensive Warranty: This part is covered by a 6-month warranty against manufacturing defects.
• Testing & Documentation: Every batch is subject to stringent quality checks. A detailed machinery test report and video evidence of outgoing inspection are provided to verify conformity and quality.

FAQ

Q: How can I verify this piston will fit my specific Yanmar engine?
A: Confirm your engine’s model number is either 3TNE78A or 3TNB78. The OEM part number for this application is 119818-22080. Cross-reference this number with your engine’s service manual or existing part for confirmation.

Q: What documentation is provided with the part to verify its quality?
A: Each order is supported by a formal machinery test report and a video outgoing-inspection record. These documents provide transparent evidence of the part’s dimensions, material integrity, and compliance with specifications before shipment.

Q: Do you recommend installing this piston as a single unit or as part of a full set?
A> For optimal engine balance and performance, it is highly recommended to replace pistons in a complete set per cylinder bank. Using a single piston in a worn engine may lead to imbalance. We can supply full sets—please contact our sales team for a quote.

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 .