What are the key differences between EMD Class 66 and EMD SD40-2?

Compare EMD Class 66 and EMD SD40-2 side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are EMD Class 66 and EMD SD40-2 scored?

EMD Class 66 has an AI score of 8.2/10 and EMD SD40-2 has an AI score of 9.5/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

EMD Class 66 vs EMD SD40-2 2026 - Compared

EMD Class 66

EMD SD40-2

WINNER EMD SD40-2

EMD SD40-2 edges ahead with a score of 9.5/10 compared to 8.2/10 for EMD Class 66. While both are highly rated in their...

EMD Class 66

8.18 Great

Locomotive Get EMD Class 66 open_in_new

emoji_events WINNER

EMD SD40-2 edges ahead with a score of 9.5/10 compared to 8.2/10 for EMD Class 66. While both are highly rated in their respective fields, EMD SD40-2 demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: EMD SD40-2

verified Confidence: Low

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description Overview

EMD Class 66

EMD Class 66 is the common name for the JT42CWR family of Co-Co diesel-electric locomotives developed by Electro-Motive Diesel for European heavy-freight service. Production began in 1998, with examples used by freight operators in the United Kingdom and continental Europe; related versions have also operated in other countries. Its six powered axles and EMD two-stroke diesel engine make it a line...

EMD SD40-2

The EMD SD40-2 is a widely used American six-axle diesel-electric locomotive manufactured by General Motors’ Electro-Motive Division. Notable for its robust design and reliability, it became a staple of freight operations across North America. The locomotive is primarily utilized by railroads transporting bulk commodities and general merchandise, serving as a workhorse for many companies.