2024年8月11日 · Information about the SD40N locomotives rebuilt by Union Pacific as part of the railroad's SD40-2 Modernization Program at Jenks Shops in North Little Rock, Arkansas.

It became UP 2978, Class SD40-2, on August 11, 1997, and rebuilt as 1571, Class SD40N, on August 30, 2010. 1570, Class SD40N, was built in February 1979, #786170-38, FN 786170-38, as UP 3536, Class SD40-2.

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Union Pacific Railroad Company Photographic Roster, Locomotive Model: SD40N

2011年11月14日 · According to “The Diesel Shop”, the SD40N designation has been applied to SD40-2s which have been rebuilt at UP’s Jenks Shops in Little Rock AR. No details are given regarding the specifics of the actual work performed.

I caught this old classic picking up loaded lumber cars from Sierra Pacific Industries at Quincy Junction along the Feather River Route. At first I thought it was just a regular old SD40-2, but it turns out it is now a SD40N. So my question is, what is the difference between a …

2024年5月17日 · In November 1980, Union Pacific accepted delivery of four special SD40-2 locomotives from their builder, Electro Motive Division of General Motors. These four locomotives were part of test by UP and EMD for the builder to build an improved SD40-2 for UP.

Home > Union Pacific Railroad Company > Locomotives > Rebuilt EMD SD40N > UP 1970

UP SD40N #2043 and HLCX GP38-2 #1813 in the yard at Gorham, IL get picked up by the ASMAR-02 today. #2043 is an ex-MP unit I believe. Had no idea the ex-MP units without DB were even still on the UP roster, much less having been rebuilt to SD40N specs.

Reliability and versatility of the 3,000-horsepower SD40-2 made it the best-selling model in EMD’s history and the standard of the industry for several decades after its introduction. The SD40-2 was an improvement over the SD40, with modular electronic control systems like those of the experimental SD45X and DDA40X.