What are the key differences between EMD SD40 and EMD E9?

Compare EMD SD40 and EMD E9 side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are EMD SD40 and EMD E9 scored?

EMD SD40 has an AI score of 8.7/10 and EMD E9 has an AI score of 8.6/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

EMD SD40 vs EMD E9 2026 - Compared

EMD SD40

EMD E9

WINNER EMD SD40

EMD SD40 edges ahead with a score of 8.7/10 compared to 8.6/10 for EMD E9. While both are highly rated in their respecti...

emoji_events WINNER

EMD SD40

8.65 Great

Locomotive Get EMD SD40 open_in_new

EMD E9

8.64 Great

Locomotive Get EMD E9 open_in_new

psychology AI Verdict

EMD SD40 edges ahead with a score of 8.7/10 compared to 8.6/10 for EMD E9. While both are highly rated in their respective fields, EMD SD40 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

verified Confidence: Low

Ready to decide? Get EMD SD40 arrow_forward

description Overview

EMD SD40

The EMD SD40 is a six-axle diesel-electric freight locomotive produced by General Motors Electro-Motive Division from 1966 to 1972. It uses a 3,000-horsepower EMD 645-series diesel engine and a C-C wheel arrangement, giving it the tractive capacity required for heavy North American freight service. The SD40 formed part of EMD's 40 Series and provided the mechanical basis for the later SD40-2, one...

EMD E9

The EMD E9 is a streamlined passenger diesel-electric locomotive built by General Motors' Electro-Motive Division from 1954 to 1964. The A-unit used a 2,400-horsepower 567-series engine and was designed for high-speed passenger service, while B-units provided additional power without a driving cab. E9 locomotives operated on major American railroads and later appeared in preservation and excursion...