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ALCO 12-251C C420

The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer, ALCO who closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in Marine, Generator, and locomotive uses.

The 12cyl 251C can be found in the following Locomotives:

RS-32, C420, M420, M420B, M420R, M420TR, HR-412, M424, 45 Class, 442 Class, 600 more…

EMD 16-645C 4EXH NT

The Uceta GP16s were the result of a Seaboard Coast Line rebuild program upgrading GP7, GP9 and GP18 EMD locomotives. Unlike the GP10 program which retained a 567 16cyl prime mover, GP16s recieved 645 power assemblies. A 4 stack exhaust was also applied in most cases. Most ex GP7's had a 16-645BC prime mover. While ex GP9's in many cases had a 16-645C. In some rare cases some GP16's had a new 16-645E prime mover. US Army GP16's had brand new 645E's in them. Check your prototype. Today, many more…

GE 16-7FDL16G11 LATE EXH

The GE FDL-16 prime mover was first used in 1959 in the General Electric U25B locomotive. Over the years little changed in terms of sound until the "Dash-8" series of GE locomotives was introduced. Known for their throaty chug and shaft driven compressor (rather than the more modern “Whoop” electric compressor). There was an interim period following the "U Boats" that began the era in GE called the "Dash-7s". During this time many locos started receiving exhaust silencers and the shape of the more…

GE 16-7FDL16Y2 LATE EXH

In the Mid 1980s GE changed it's 16cyl FDL design to include a different exhaust silencer, a new electric compressor often known as the "Whoop compressor" and changed some of the electronics of their locomotives. These differences among a few other led to a distinct change in the sounds from the GE 16cyl FDL often found from the U25Bs on through the Dash-7 series of the Locomotives.

Keeping in tradition with GE's locomotive series nicknames beginning with the "Dash 7" of the 1970s, the C44-9W more…

EMD 16-710G3B LATE EXH T Ed2

The SD60E program was designed to upgrade 1980's SD60s with current electronic controls and crash-worthiness upgrades in Norfolk Southern's Juniata shops in Altoona PA.

The rebuilds receive a Tier 0+ 16-710G3B prime mover rated at 4,000 hp, compared to the standard SD60's 3,800 hp. Along with the HP upgrade they also received all new wiring and EMD's EM2000 microprocessor controls. These new controls altered the notching slightly in these rebuilt locomotives.

This ESU Sound file will operate more…

GE 12-GEVO 12LDD6 LATE EXH

Introduced in 2012, General Electric's Tier 4 GEVo Series represents the latest in diesel-electric locomotive technology. The GE Tier 4 GEVo is designed to meet increasingly stringent Environmental Protection Agency (EPA) emissions regulations.

The EPA “Tier” emissions standards are a series, or Tiers, of allowable emissions levels based upon a locomotives’ date of manufacture. The highest and most stringent tier level, Tier 4, sets maximum allowable NOx and hydrocarbon emissions levels for more…

GE 16-7FDL16AE LATE EXH

In the Mid 1980s GE changed it's 16cyl FDL design to include a different exhaust silencer, a new electric compressor often known as the "Whoop compressor" and changed some of the electronics of their locomotives. These differences among a few other led to a distinct change in the sounds from the GE 16cyl FDL often found from the U25Bs on through the Dash-7 series of the Locomotives.

Keeping in tradition with GE's locomotive series nicknames beginning with the "Dash 7" of the 1970s, the C44-9W more…

EMD 16-710G3B LATE EXH T

The EMD 710 is a line of diesel engines built by Electro-Motive Diesel (EMD). Introduced in 1985, the 710 series replaced the earlier EMD 645 series. Since its introduction, EMD has continually upgraded the 710G diesel engine. Power output has increased from 3,800 horsepower on 1985's 16-710G3A to 4,500 horsepower on 2012's 16-710G3C-T2. Over the production span of certain locomotive models, upgraded engine models have been fitted when these became available. For example, an early 1994-built more…

GE 12-GEVO LATE EXH Ed2

GE Evolution 12cyl "GEVO" Locomotives have a 4 stoke diesel engine and have been designed to be more efficient and more emission friendly than previous models. Evolution Series locomotives are equipped with either AC or DC traction motors, depending on the customer's preference, though admittedly there is little sound difference if any between the two.

All early GEVOs were delivered with the Nathan Airchime K5HL air horn. Later GEVOs started to recieve a slightly different K5HLL horn. Most if more…

EMD 20-710G3B LATE EXH T

The SD80MAC is a 5000 horsepower C-C diesel-electric locomotive. The SD80MAC uses a 20 cylinder version of EMD's 710G prime mover,formally known as the V-20 710G3B-ES and is the first diesel locomotive to use a 20-cylinder engine since the SD45/SD45-2. The SD80MAC introduced a wide radiator housing similar to GE locomotives and the placement of dynamic brakes at the rear of the locomotive. Key spotting difference between the SD80MAC and SD90MAC include: no external rear sandbox on the 90MAC, more…