Mitsubishi 4D34 engine for construction equipment

Mitsubishi 4D34 Engine: A highly durable and powerful 4-cylinder, water-cooled diesel engine frequently found in medium-duty trucks, industrial machinery, and construction equipment. Known for its rugged construction and exceptional reliability, the 4D34 is often favored for applications requiring consistent power under heavy loads.

Engine Configuration: Inline 4-cylinder, 4-stroke, 3.9L (3,907cc) displacement.

Cooling System: Liquid-cooled.

Rated Power: Typically ranges from 80 – 115 kW (107 – 154 hp) depending on the variant (naturally aspirated or turbocharged).

Fuel System: Mechanical direct injection (often found with a reliable inline fuel injection pump).

Key Advantage: Renowned for longevity and high torque output at lower RPMs; it is relatively simple to maintain, which is a major advantage for equipment operating in remote or demanding environments.

Primary Applications: Mitsubishi Fuso trucks, various construction excavators (often Kobelco), loaders, and stationary power units.

Guangzhou Jianming Machinery Equipment Co., Ltd.
With 20 years of solid practical experience, we are experts specializing in mechanical power and spare parts.

We started as a small mechanical repair shop. Over the past 20 years, we have accumulated extensive successful practice cases and maintenance experience worldwide. This first-line experience in solving complex mechanical problems has earned us widespread acclaim globally and propelled our growth into a comprehensive enterprise with over 200 professionals.

We deeply understand the difficulties faced by equipment under extreme conditions and possess rich practical experience and professional skills in the following areas:

Heavy Machinery Power Upgrades & Retrofitting: Providing custom engine retrofitting and replacement solutions for excavators, bulldozers, loaders, and other heavy equipment. We are highly proficient in mainstream power systems, including Mitsubishi, Kobelco, Yanmar, Caterpillar, Cummins, Isuzu, Perkins, Deutz, and Volvo.

Mining Equipment Maintenance & Optimization: Offering professional repair, maintenance, and power optimization strategies specifically designed for heavy mining equipment operating under high-load conditions.

Agricultural & Irrigation System Solutions: Assisting farms in efficiently designing and assembling irrigation systems, as well as troubleshooting and upgrading power units for various agricultural machinery.

Leveraging this wealth of technical experience, we are also a strong supplier of spare parts:

Comprehensive Mechanical Parts Supply: Because we understand repair, we know the importance of quality. We provide a complete range of carefully selected parts for excavators and heavy machinery, covering hydraulic systems, fuel systems, internal engine components, and electrical systems, fully meeting your one-stop procurement needs.

Our rich practical experience and comprehensive supply chain system are our most valuable assets. Whether you are facing complex mechanical challenges or need reliable spare parts, Jianming Machinery has the expertise to help you succeed!