For Sale: Electro Motive Diesel EMD 645 and EMD 710 Spare Parts

EMD 645 and EMD 710 Diesel Engines – Models, Configurations and Spare Parts Overview

Electro-Motive Diesel (EMD) is a globally recognized manufacturer of medium-speed diesel engines engineered for long service life, heavy-duty operation, and continuous performance in demanding environments. Among EMD’s most successful platforms are the EMD 645 and EMD 710 engine series, widely used in locomotive, marine, and stationary power generation applications worldwide.

Understanding the full model designations and configurations of EMD 645 and EMD 710 engines is essential for correct engine identification, maintenance planning, and accurate spare parts supply.

EMD 645 Engine Series – Model Designations Explained

The EMD 645 series is a two-stroke diesel engine platform developed as an evolution of the earlier 567 series. The “645” designation refers to the displacement per cylinder (645 cubic inches).

Common EMD 645 Model Variants

• EMD 645E-V8 / V12 / V16
  Roots-blown (non-turbocharged) two-stroke diesel engines commonly used in switcher locomotives and industrial power units.

• EMD 645E3-V12 / V16
  Early turbocharged versions designed to deliver higher power output compared to the standard 645E engines.

• EMD 645E3B-V8 / V12 / V16 / V20
  The most widely used and standardized 645 configuration. Turbocharged with Roots blower assistance, offering excellent scavenging, reliability, and fuel efficiency. This variant dominates global locomotive fleets.

• EMD 645F-V16
  A frame and block variation developed for specific locomotive designs.

• EMD 645F3B-V16
  Turbocharged F-block engine used in high-horsepower freight locomotives.

Typical Cylinder Configurations

• V8

• V12

• V16

• V20

EMD 710 Engine Series – Model Designations Explained

The EMD 710 series represents the next generation of EMD two-stroke diesel engines, designed to deliver higher power density, improved fuel efficiency, and enhanced durability. The “710” designation refers to 710 cubic inches of displacement per cylinder.

Common EMD 710 Model Variants

• EMD 710G-V8 / V12 / V16
  Early naturally aspirated or basic turbo configurations used in industrial and limited locomotive applications.

• EMD 710G3-V12 / V16
  Turbocharged engines developed to meet increasing power demands in modern rail traction.

• EMD 710G3B-V8 / V12 / V16 / V20
  The most common and widely supported 710 configuration. Turbocharged with Roots blower assistance, optimized for heavy-haul locomotives, marine propulsion, and stationary power generation.

Typical Cylinder Configurations

• V8

• V12

• V16

• V20

EMD 645 & 710 Spare Parts Supply

Both engine series share EMD’s modular design philosophy, allowing long service life through scheduled overhauls using high-quality EMD spare parts.

Commonly traded EMD 645 and EMD 710 spare parts include:

• Cylinder head

• Piston

• Cylinder liner

• Crankshaft

• Connecting rod (conrod)

• Power assembly components

• Fuel injectors and injector sleeves

• Bearings, gaskets, and seals

Correct spare parts selection depends on full engine model identification, such as EMD 645E3B-V16 or EMD 710G3B-V12, rather than cylinder count alone.

Applications of EMD 645 and EMD 710 Engines

• Diesel-electric locomotives

• Marine main and auxiliary engines

• Stationary generator sets

• Industrial and mining power systems

Their proven reliability and global installed base ensure continuous demand for EMD 645 and 710 engine spare parts across multiple industries.

Conclusion

The EMD 645 and EMD 710 engine series remain among the most reliable and widely supported two-stroke diesel platforms in the world. With multiple model variants and cylinder configurations, accurate understanding of engine designations is essential for maintenance, overhaul, and spare parts trading.

As a company engaged in the buying and selling of EMD 645 and EMD 710 spare parts, supporting components such as cylinder heads, pistons, liners, crankshafts, and conrods ensures long-term operational reliability for customers in marine, locomotive, and power generation sectors worldwide.