Yuchai YC6B125-T21 Complete Diesel Engine

Yuchai YC6B125-T21 is inline six-cylinder, water-cooled four-stroke diesel engine. Displacement 6.871 L, bore × stroke:108 mm × 125 mm. Naturally aspirated intake, mechanical direct injection fuel system, mechanical governor, meets China Off-Road Stage II / EU Stage II emission standard.

High-rigidity cast iron cylinder block, solid structure suitable for dusty construction sites and frequent variable load working conditions. Optimized low-speed torque characteristics to match loader hydraulic system. Standard engineering machinery installation dimensions, accessory interfaces and flywheel housing specification. Available as complete engine assembly. Each unit passes bench hot test before delivery to guarantee stable power output and reliable sealing performance.

Main Matching Equipment

3-ton wheel loaders, road rollers, small excavators, agricultural machinery and other general engineering equipment.

Product Advantages

Mature Mechanical Structure & Strong Adaptability

• Rated power:92 kW @2300 rpm; maximum torque 463 N·m @1400–1600 rpm
• Simple mechanical fuel system, low requirements on fuel quality
• Stable output under frequent start-stop and heavy-load operation

Low Operation & Maintenance Cost

• Mass-production verified classic model, spare parts widely available
• Centralized maintenance layout, convenient filter replacement and daily inspection
• Long service interval, effectively reduce equipment operating expenditure

Direct Replacement & Good Versatility

• Consistent mounting size with original YC6108G series engines
• Complete domestic spare parts supply network, shorten equipment downtime
• Preferred replacement power assembly for old loader renovation

Technical Specifications