4TNE106 Valve Seat 123900-11090 123900-11080 For Yanmar Engine Parts

Product Details

Product Overview

This premium valve seat, identified by OEM part numbers 123900-11090 and 123900-11080, is specifically designed for the Yanmar 4TNE106 diesel engine. As a critical component in the cylinder head assembly, this valve seat ensures a proper seal between the valve and the engine block, which is essential for maintaining optimal compression and preventing gas leakage.

Manufactured to OEM size specifications, this part is a direct replacement for the original equipment. It is commonly utilized in a wide range of heavy machinery and industrial equipment powered by the Yanmar 4TNE106 engine, including excavators, forklifts, bulldozers, and other construction equipment. This component is ideal for rebuilders, maintenance teams, and parts distributors looking for reliable, cost-effective solutions for engine overhauls.

Key Features & Benefits

• Precise Fitment: Engineered to meet strict OEM size standards, ensuring a perfect fit for the Yanmar 4TNE106 engine head without the need for modification.
• Durable Construction: Built from high-grade materials to withstand the extreme heat and pressure cycles within a diesel combustion chamber, reducing wear and extending service life.
• Compression Integrity: Restores proper valve sealing, which is critical for maintaining engine compression, improving fuel efficiency, and reducing blow-by.
• Cost-Effective Solution: Offers a competitive price advantage compared to genuine dealer parts, providing significant savings for high-volume rebuilds and fleet maintenance.
• Easy Identification: Clearly marked with OEM reference numbers 123900-11090 and 123900-11080 for hassle-free cross-referencing and inventory management.
• Reliable Performance: Each valve seat undergoes strict quality control checks to ensure consistent hardness and dimensional accuracy.

Technical Specifications

OEM Cross-Reference

This valve seat is a direct replacement for the following original Yanmar part numbers:

• 123900-11090
• 123900-11080

These numbers are the primary identifiers for this component. Please verify your existing part number against this list to ensure compatibility before purchase.

Compatibility

This component is designed for the Yanmar 4TNE106 diesel engine. Based on this engine application, it is commonly used for the following types of machinery:

• Excavators
• Forklifts
• Bulldozers
• Loaders
• Trucks & Buses
• Agricultural Tractors

Note: Fitment depends on the specific engine model and head configuration. We recommend confirming your engine model (4TNE106) and existing part number before ordering.

Global Supply & Distribution

We serve a global B2B clientele with efficient logistics and supply chain management. Our products are shipped to major industrial markets worldwide, including:

• North America: USA, Canada, Mexico
• Europe: Germany, UK, Netherlands, France, Italy
• Asia-Pacific: Japan, South Korea, Australia, Singapore
• Middle East & Africa: UAE, Saudi Arabia, South Africa
• South America: Brazil, Chile, Argentina

We offer fast delivery to major ports and industrial hubs. Our export team ensures all documentation and packaging meet international shipping standards for hassle-free customs clearance.

Quality Assurance

We prioritize quality to ensure the longevity and reliability of our engine parts.

• Inspection: Every batch is subject to a Machinery Test Report and Video Outgoing Inspection to verify dimensional accuracy and surface finish.
• Manufacturing: Produced in ISO-compliant facilities in Guangdong and Guizhou, China, using precision machining processes.
• Warranty: We provide a 6-month warranty against manufacturing defects in materials and workmanship.

FAQ

Q: How do I confirm this valve seat will fit my Yanmar engine?
A: Please verify your engine model is 4TNE106. You should also remove your old valve seat and check for the stamped part number. If it matches 123900-11090 or 123900-11080, this is the correct part. If you are unsure, measure the outer diameter and height of the old seat and compare it to the OEM specifications for the 4TNE106.

Q: What is the recommended installation procedure for a valve seat?
A: Installation should be performed by a qualified diesel mechanic. The valve seat bore in the cylinder head must be clean and free of burrs. The new seat is typically chilled (using dry ice or liquid nitrogen) and the head is heated to create an interference fit. The seat is then pressed or driven into place. Always use a valve seat cutter to ensure the new seat is perfectly concentric with the valve guide after installation.

Q: Can I use this valve seat for an engine overhaul on a Yanmar 4TNE98 or 4TNE94?
A: No. This valve seat is specifically designed for the Yanmar 4TNE106 engine. While the 4TNE series shares a similar block design, the cylinder head, valve size, and seat dimensions vary between displacements (e.g., 4TNE94, 4TNE98, 4TNE106). Using the incorrect seat can lead to poor sealing, valve burning, or engine damage. Always match the part number to your specific engine model.