ME351863 Engine Piston STD For Mitsubishi Fuso 6M70 6M70T Diesel Engine Spare Parts

Product Details

Product Overview

This heavy-duty engine piston, carrying the OEM reference number ME351863, is a critical component specifically designed for the Mitsubishi Fuso 6M70 and 6M70T diesel engines. As a standard size (STD) piston, it serves as a direct replacement for engines requiring original factory specifications, ensuring consistent compression ratios and optimal combustion performance.

Manufactured under the brand, this piston is engineered for demanding applications commonly found in heavy-duty trucks, buses, and construction machinery. The use of high-grade aluminum alloy combined with an Alfin insert for the top ring groove provides exceptional thermal resistance and structural integrity, making it suitable for both naturally aspirated and turbocharged 6M70 engine variants.

This component is ideal for fleet maintenance operations, repair shops, and equipment rebuilders seeking a reliable, standard-dimension piston that meets OEM tolerances without the need for oversized machining.

Key Features & Benefits

• OEM Specification Fitment: Direct replacement for Mitsubishi Fuso part number ME351863, ensuring hassle-free installation on 6M70 and 6M70T engine blocks.
• Alfin Insert Technology: Features a cast-in Alfin ring carrier that significantly reduces ring groove wear under high thermal loads, extending piston service life in turbocharged applications.
• Standard Size Precision: Manufactured to exact STD dimensions, eliminating the need for cylinder boring and allowing direct installation into standard bore engines.
• Advanced Surface Treatment: Tin-coated crown for improved heat dissipation and MoS2 skirt coating reduces friction and scuffing during cold starts and break-in periods.
• High-Strength Alloy Construction: Forged from high-grade aluminum alloy to withstand extreme combustion pressures while maintaining lightweight characteristics for reduced reciprocating mass.
• 90mm Combustion Chamber: Precisely machined bowl profile ensures proper fuel atomization and complete combustion, optimizing power output and fuel efficiency.
• Rigorous Quality Control: Each piston undergoes dimensional inspection and weight matching to maintain engine balance and reduce vibration.

Technical Specifications

OEM Cross-Reference

This piston is manufactured as a direct replacement for the following original equipment manufacturer part numbers:

• Mitsubishi Fuso: ME351863

Note: This part is an aftermarket replacement component. It is designed to meet or exceed OEM specifications but is not manufactured by Mitsubishi Fuso. All OEM references are provided for cross-reference purposes only.

Compatibility

This piston is commonly used for the following engine and vehicle applications:

Engine Models:

• Mitsubishi 6M70 (Naturally Aspirated)
• Mitsubishi 6M70T (Turbocharged)

Vehicle Applications (commonly used for):

• Mitsubishi Fuso Heavy Duty Trucks (e.g., The Great, Super Great series)
• Mitsubishi Fuso Buses and Coaches
• Construction and Mining Equipment powered by 6M70/6M70T engines

Important Fitment Note: Always verify your engine model and piston size before ordering. This is a standard size (STD) piston; if your cylinder bore has been previously machined, an oversized piston may be required.

Global Supply & Distribution

We maintain a robust global supply chain to serve international B2B clients across all major markets. Our standard shipping capabilities include:

• North America: Express delivery to major ports (Los Angeles, Houston, New York) and industrial hubs within 7-12 business days.
• Europe: Fast transit to Rotterdam, Hamburg, and Felixstowe ports with door-to-door options available for EU countries.
• Asia-Pacific: Rapid delivery to Singapore, Tokyo, Busan, and Sydney ports from our Guangdong warehouse.
• Middle East & Africa: Regular shipments to Dubai, Jeddah, and Durban with customs-cleared delivery options.
• South America: Consolidated shipping to Santos, Callao, and Buenos Aires ports with competitive freight rates.

We have extensive experience in international trade documentation, including commercial invoices, packing lists, certificates of origin, and bill of lading. Bulk orders benefit from volume-based pricing and dedicated logistics coordination.

Quality Assurance

Our quality management system ensures every piston meets rigorous standards before shipment:

• Manufacturing Standards: Produced in ISO 9001 certified facilities with precision machining tolerances within OEM specifications.
• Testing Procedures: Each batch undergoes dimensional verification, hardness testing, and surface finish inspection. Machinery test reports and outgoing video inspections are available upon request.
• Material Certification: High-grade aluminum alloy composition is verified through spectrometric analysis to ensure proper strength and thermal properties.
• Warranty Coverage: All pistons come with a standard 12-month warranty against manufacturing defects in materials and workmanship under normal operating conditions.

FAQ

Q1: How can I confirm this ME351863 piston fits my specific engine?
A: First, verify your engine model is either the 6M70 or 6M70T. Check the engine data plate or serial number. Measure your cylinder bore diameter; if it matches the standard factory specification (typically 128mm for 6M70 series), this STD piston will fit. If the bore has been previously oversized, you will need a corresponding oversized piston. We recommend consulting your engine service manual for exact specifications before ordering.

Q2: What is the installation procedure for this Alfin piston?
A: Installation should follow standard diesel engine rebuilding procedures. Key steps include: clean the cylinder bore thoroughly, lubricate the piston and rings with clean engine oil, use a proper ring compressor tool, and ensure correct ring gap orientation according to manufacturer specifications. The MoS2 skirt coating provides initial break-in protection, but avoid excessive cold cranking. Torque connecting rod bolts to factory specifications using a calibrated torque wrench.

Q3: What maintenance intervals are recommended for engines using these pistons?
A: Maintenance intervals should follow the original Mitsubishi Fuso engine service schedule. Typical inspection intervals for piston rings and cylinder wear occur at 200,000-300,000 km (125,000-186,000 miles) for highway applications, or 5,000-8,000 hours for industrial/construction use. Regular oil analysis can help detect abnormal wear patterns early. Always use the recommended oil grade and change intervals to maximize piston and ring life.