6D14 Valve Seat ME031931 ME031935 for Mitsubishi Engine Parts – Diesel, OEM Size

Product Details

Product Overview

This high-precision valve seat, identified by part numbers ME031931 and ME031935, is specifically designed for the Mitsubishi 6D14 diesel engine. As a critical component in the cylinder head assembly, this valve seat ensures a proper seal between the valve and the seat, which is essential for maintaining compression and optimizing engine performance. It is a direct replacement part manufactured to original equipment size specifications.

Ideal for heavy-duty applications, this valve seat is commonly used in a range of equipment including construction machinery, industrial generators, agricultural tractors, marine engines, and material handling vehicles. By choosing this OEM-spec part, you ensure reliable operation and longevity for your Mitsubishi 6D14 power unit.

Key Features & Benefits

• Precision Fit: Manufactured to exact OEM specifications (OEM Size) to guarantee a perfect seal and proper valve alignment in the 6D14 cylinder head.
• Enhanced Durability: Built from high-grade materials to withstand the extreme heat and pressure of diesel combustion, reducing the risk of premature wear or valve recession.
• Direct Replacement: Part numbers ME031931 and ME031935 cross-reference directly to the original Mitsubishi parts, simplifying your parts ordering and inventory management.
• Improved Compression: A new valve seat restores the sealing surface, helping to maintain optimal cylinder compression for better fuel efficiency and engine power.
• Versatile Application: Suitable for a wide range of machinery including construction, agriculture, marine, and gensets, making it a versatile stock item for your workshop.
• Reliable Sourcing: Backed by a 6-month warranty and supported by video outgoing inspection and machinery test reports for quality assurance.

Technical Specifications

OEM Cross-Reference

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

• ME031931 – Mitsubishi Valve Seat (Intake/Exhaust)
• ME031935 – Mitsubishi Valve Seat (Intake/Exhaust)

Note: These numbers are often used interchangeably. Always verify the specific application (intake vs. exhaust) for your 6D14 engine head.

Compatibility

This valve seat is specifically designed for the Mitsubishi 6D14 diesel engine. It is commonly used for the following types of equipment:

• Construction Machinery: Excavators, Bulldozers, Wheel Loaders
• Agricultural Machinery: Tractors, Harvesters
• Industrial Equipment: Generators (Gensets), Compressors, Pumps
• Marine Engines: Workboats, Fishing Vessels
• Material Handling: Forklifts, Cranes

Fitment is inferred based on the engine model. Please confirm with your engine serial number or cylinder head specifications before ordering.

Global Supply & Distribution

As a dedicated supplier of Mitsubishi engine parts, we offer worldwide shipping and serve a diverse global customer base. Our export capabilities cover major markets including:

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

We provide fast delivery to major ports and industrial centers worldwide. Our logistics team ensures proper export documentation and customs compliance for smooth international transactions.

Quality Assurance

Every valve seat undergoes rigorous quality control to meet industry standards. Our manufacturing process includes:

• Material Verification: Raw materials are tested for hardness and composition.
• Dimensional Inspection: Parts are checked against OEM blueprints for precise fit.
• Video Outgoing Inspection: We provide video evidence of the final inspection before shipment.
• Machinery Test Report: A detailed report is available upon request.
• Warranty: All parts come with a 6-month warranty against manufacturing defects.
• After Warranty Service: Online technical support is available to assist with any post-sale issues.

FAQ

Q: How do I confirm that part ME031931 fits my Mitsubishi 6D14 engine?

A: The ME031931 and ME031935 are the standard OEM valve seat numbers for the 6D14 engine. To confirm fitment, check the part number stamped on your old valve seat or consult your engine’s parts manual. If you have a modified or rebuilt cylinder head, we recommend measuring the valve seat outer diameter (OD) and inner diameter (ID) to ensure compatibility.

Q: What is the recommended installation procedure for a new valve seat?

A: Installation should be performed by a qualified diesel mechanic. The process typically involves heating the cylinder head to expand the valve seat bore, then pressing or freezing the new seat into place. After installation, a valve seat cutter or grinding stone should be used to ensure a perfect sealing angle with the valve face. Always check valve clearance after installation.

Q: How long does a valve seat typically last, and what causes premature failure?

A: Under normal operating conditions, a valve seat can last for thousands of hours. Premature failure is often caused by overheating (e.g., from a faulty cooling system), incorrect valve lash adjustment, or poor fuel quality leading to carbon buildup. Regular maintenance, including checking valve clearance and cooling system function, will extend the life of your valve seats.