3TNV80 Valve Seat for Yanmar Diesel Engine – OEM Size

Product Details

Product Overview

This high-quality valve seat, specifically designed for the Yanmar 3TNV80 diesel engine, is a critical component for maintaining optimal engine compression and performance. Manufactured by, this part is engineered to OEM size specifications, ensuring a precise fit and reliable sealing within the cylinder head. The valve seat is essential for engines used across a wide range of heavy machinery, including construction, agricultural, industrial, and marine applications.

As a direct replacement part, it is commonly utilized in Yanmar-powered equipment such as mini excavators, compact loaders, generators, and gensets. This valve seat is not a generic part; it is produced to match the exact engineering requirements of the 3TNV80 engine model, providing confidence in compatibility and long-term durability for your maintenance or overhaul project.

Key Features & Benefits

• OEM Size Precision: Manufactured to exact original equipment manufacturer (OEM) dimensions, guaranteeing a perfect fit without the need for additional machining.
• Enhanced Engine Performance: Ensures a tight seal between the valve and seat, maximizing compression, improving fuel efficiency, and reducing emissions.
• High-Temperature Resistance: Constructed from durable materials capable of withstanding the extreme heat and pressure cycles within the combustion chamber.
• Extended Service Life: Designed for longevity, reducing the frequency of valve adjustments and top-end overhauls.
• Broad Application Range: Suitable for various heavy-duty applications, including construction, agriculture, industrial, marine, and power generation equipment.
• Rigorous Quality Control: Each valve seat undergoes outgoing inspection, and a machinery test report is provided to verify quality standards.

Technical Specifications

OEM Cross-Reference

This valve seat is designed as a direct replacement for Yanmar 3TNV80 diesel engine components. While specific OEM part numbers may vary by engine serial number, the following is a standard cross-reference for this application:

• Yanmar OEM Equivalent: 119250-11110
• Alternative Reference: 119250-11120

Note: Always verify the original part number from your engine’s service manual or the existing component before ordering to ensure exact compatibility.

Compatibility

This valve seat is specifically designed for the Yanmar 3TNV80 series diesel engine. It is commonly used for the following applications:

• Engine Model: Yanmar 3TNV80
• Equipment Types: Construction machinery, industrial equipment, agricultural tractors, marine gensets, and portable power generators.

Fitment is inferred based on the engine model. Please confirm your engine’s serial number and current valve seat dimensions before purchase.

Global Supply & Distribution

offers a robust global supply chain capable of delivering this valve seat to customers worldwide. Our distribution network covers key industrial markets, including:

• North America: Rapid delivery to major ports and distribution hubs in the USA, Canada, and Mexico.
• Europe: Efficient shipping to industrial centers in Germany, the UK, France, and the Netherlands.
• Asia-Pacific: Direct supply to Japan, South Korea, Australia, and Southeast Asian markets.
• Middle East & Africa: Reliable service to UAE, Saudi Arabia, South Africa, and other key regions.

We maintain extensive stock levels to ensure fast dispatch and support for urgent maintenance schedules. All exports are handled in compliance with international trade regulations.

Quality Assurance

Every valve seat is manufactured under strict quality control standards. Our commitment to quality includes:

• Manufacturing Standards: Parts are produced to meet or exceed OEM specifications.
• Testing: Each batch undergoes a machinery test report to verify dimensional accuracy and material integrity.
• Inspection: Video outgoing inspection is provided for quality assurance before shipment.
• Warranty: This product is backed by a 6-month warranty against manufacturing defects.
• After-Warranty Support: Online technical support is available for continued assistance beyond the warranty period.

FAQ

1. Is this valve seat a direct replacement for my Yanmar 3TNV80 engine?

Yes, this valve seat is manufactured to OEM size specifications for the Yanmar 3TNV80 diesel engine. It is a direct replacement part. However, we always recommend comparing the dimensions (outer diameter, inner diameter, and height) with your original valve seat and consulting your engine’s service manual to ensure a perfect match for your specific engine serial number.

2. What is the recommended installation procedure for this valve seat?

Installation should be performed by a qualified diesel mechanic. The process typically involves cleaning the cylinder head valve seat pocket, chilling the valve seat for a slight interference fit, and carefully pressing it into place. After installation, a valve grind or lapping is recommended to ensure a perfect seal. Always follow the torque specifications and procedures outlined in the Yanmar 3TNV80 service manual.

3. How do I ensure the long-term performance of this valve seat?

To maximize the lifespan of your valve seat, ensure your engine is operated with clean fuel and high-quality engine oil. Regular valve clearance adjustments as per the manufacturer’s maintenance schedule are crucial. Using the correct fuel injection timing and avoiding engine overheating will also prevent premature valve seat wear or recession. Periodic inspection during top-end overhauls is recommended.