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User reviews:
Positive (8 reviews) - 100% of the 8 user reviews for this game are positive.
Release Date: Dec 6, 2012

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This content requires the base game Train Simulator 2017 on Steam in order to play.

Buy Union Pacific SD45 Add-On


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About This Content

The EMD SD45 was one of the first standard North American diesel locomotives to use a 20 cylinder diesel engine, and now you can drive this freighter in Train Simulator.

The SD45 shared the same common frame as its forerunner, the SD40, but featured a number of unique characteristics, including a flared radiator and a 20 cylinder engine that produced 3,600hp. Such was the popularity of the SD45s, more than 1,200 units were built between 1965 and 1971 for more than 25 railroads, with many more companies acquiring second hand units. Union Pacific purchased 50 units, primarily for high-speed freight and intermodal services – such was the gear ratio of the locomotive, the SD45 was capable of 90mph top speeds. Many of the UP SD45s were also put into service on specialist traffic operations, such as wood chip, coal and mineral trains.

The demise of the Union Pacific SD45 began in the early 1980s as traffic slowed on the network. High fuel consumption and excessive engine wear made the Class an early candidate for storage, and thus all were retired by 1987. However, some SD45s still exist as preserved examples whilst others have been scrapped or dismantled for spare parts.

The Union Pacific SD45 for Train Simulator, developed by DigitalTrainModel, comes in the UP’s famous ‘Armour Yellow’ livery, with features including opening cab doors and windows, accurate sounds, extensive locomotive lighting and power selector. Four scenarios for the Sherman Hill (available separately) are also included.

The Sherman Hill Add-On (available separately) is required to play the scenarios included with this add-on.


Five exciting scenarios for the Sherman Hill (available on Steam):

  • EMD SD45 Intro
  • Emergency to Sherman
  • Express to Sunrise
  • Pushing and Pulling
  • Gas Inlet and Outlet
More scenarios are available on Steam Workshop online and in-game. Train Simulator’s Steam Workshop scenarios are free and easy to download, adding many more hours of exciting gameplay. With scenarios being added daily, why don’t you check it out now!

Click here for Steam Workshop scenarios.

Key Features

  • EMD SD45 in Union Pacific ‘Armour Yellow’ livery
  • Fully detailed cab interior with full lighting, including instrument, numberboard and platform lights, and opening cab doors and windows
  • Accurate locomotive sounds
  • Freight wagons, including UP Airslide Hopper, UP 50ft Boxcar ComboDoor, UP 52ft Gondola with loads, UP 100t Hopper and UP CA-4 Caboose
  • Scenarios for Sherman Hill
  • Quick Drive compatible

System Requirements

    • OS:Windows® Vista / 7 / 8
    • Processor:Processor: 2.8 GHz Core 2 Duo (3.2 GHz Core 2 Duo recommended), AMD Athlon MP (multiprocessor variant or comparable processors)
    • Memory:2 GB RAM
    • Graphics:512 MB with Pixel Shader 3.0 (AGP PCIe only)
    • DirectX®:9.0c
    • Hard Drive:6 GB HD space
    • Sound:Direct X 9.0c compatible
    • Other Requirements:Broadband Internet connection
    • Additional:Quicktime Player is required for playing the videos
    • Graphics:Laptop versions of these chipsets may work but are not supported. Updates to your video and sound card drivers may be required
    • Additional:Quicktime Player is required for playing the videos
Customer reviews
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Positive (8 reviews)
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6 reviews match the filters above ( Positive)
Most Helpful Reviews  In the past 30 days
1 of 1 people (100%) found this review helpful
Posted: September 16
Digital Train Model is one of the better 3rd party content providers for Train Simulator; on average the quality of their add-ons far exceeds that of Dovetail Games. The Union Pacific EMD SD-45 was one of their first offerings and would set the tone for their future releases.

First Impressions:

Even four years after the relese of this DLC (September 2016 review), it is still impressive to look at. The textures and exterior detail still look better than most of the locomotives Dovetail Games offers with their routes. Paint scheme looks good. The locomotive has opening doors and windows, dynamic weather FX for the windows, and working winshield wipers. Roof-top fans are animated. The dyanamic brake cooling-fan is aliased to the dynamic brake and turns on/off when the dynamic brakes is engaged/disengaged (very nice touch). The brake pistons and brake rigging on the locomotive trucks is animated (nice feature). The locomotive cab has a working emergency brake valve on the Fireman's/Conductor's side (a nice extra feature).

Sound FX:

The sounds are okay (details in the gripes section below). The most impressive sound is that of the 645-20 prime mover. The SD45 had a twenty cylinder engine block that differentiated it from it's 16 cylinder siblings and gave it a distinct "thrumming" base sound that you could feel in your chest when the locomotive was working full-throttle; I believe this model captures that sound. There are sounds for the bell, air-horn, air-brake bail-off, sanders, etc. Doors and windows make sound when opening/closing. All of the control handles, switches, and buttons make satisfying sounds when you move, click, and push them. Dynamic brake cooling fan sound is included. Coupling/uncoupling is accompnied by a nice sound effect.

Lighting FX:

We have become accustomed to impressive lighting effects becuase of Digital Train Model; this locomotive DLC set the pattern for what we now enjoy. The model has working headlights front and back, numberboard lights, class lights that change b/n white, red, and green, platform lights, cab lights and instrument lights. The locomotive also has a working roof-top strobe light ( Use 'N' on the keyboard; not included in the instruction manual). All of these lighting FX work independently of one another with their own control switches.


As has become my custom, I have tested the Union Pacific SD45 on Cajon Pass pulling 100 car grain trains (a simulated 10,000 tons) at a ratio of about one horsepower per ton. In this case that worked out to three SD45s (10,800 HP). I tested the locomotives ability to start heavy trains, accelerate, and brake on various portions of the route and I am satisfied with the locomotive's physics.

Extras/Rolling Stock:

The locomotive comes with rolling stock including a UP Airslide Hopper, a UP 50ft Boxcar ComboDoor, a UP 52ft Gondola with loads, a UP 100t Hopper and a UP CA-4 Caboose. There are also 5 scenarios included for the Union Pacific SD45 (Sherman Hill Route DLC required to play scenarios).


Instruments lights are too dim; they need to be brighter. Sounds need some adjusting. For example, the air-horn and bell are difficult to hear outside the locomotive and the sanders are practically impossible to hear at all. The dynamic brake cooling fan FX is much too quiet; it needs to be louder. Finally, the included rolling stock is older Dovetail material which I call "stealth rolling stock". It hardly makes any sounds at all; no clickity-clack of wheels rolling over rail joints, no squealing of wheel flanges agains the rail-head, no sound of slack running in and out of the draw-bars.
Some detail is missing from this DLC. Locomotive has no crew, rolling stock and locomotives lack air-hoses for the train-line airbrake system (present on new DTM offerings). The caboose has no passenger view or internal lighting FX. The locomotive exhaust is low-resoultion and pixelated and volume of smoke does not vary with throttle setting. Locomotive lacks snow FX, advanced braking features, and advanced startup. Dynamic brake amperage does not register on the HUD. The brake rigging animation only works on the lead locomotive and doesn't work at all when using the independent brake. Finally, many railroads that owned the SD45 for which we have official route DLC are not represented with their own livries; the most glaring omissions are Santa Fe, Burlington Northern, Rio Grande, and Conrail.


-Iconic 2nd generation North American diesel locomotive.
-High qualtiy DTM locomotive add-on, even four years after release (2016)
-Included rolling stock and scenarios
-Discounted price relative to some newer, less advanced models
-Good locomotive physics/performance


-Older model lacks advanced braking and startup procedures.
-Conspicuous lack of liveries; particularly, Santa Fe, Burlington Northern, Rio Grande, Conrail
-The rest are nit-picky and outlined above.


This DLC is an "oldie-but-goodie" and a steal at $6.99. Most of Dovetail Games locomotive content manufactured in-house today does not come close to the level of detail and operating features that this locomotive packs into a 2012 design, and that is saying something. While this is an older DLC release that lacks newer features such as advanced startup and braking FX, the Union Pacific SD45 from Digital Train Model still has much going for it. When you take into account the attention to detail, tons of extra operational features, FX, included rolling stock and five scenarios, you have one outstanding package at a very reasonable price. I would definitely recommend this DLC to my friends.

Final Verdict: Clear Block! You may proceed and make your purchase!
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Most Helpful Reviews  Overall
11 of 11 people (100%) found this review helpful
Posted: November 29, 2014
Fabulous! One of the finest Diesel locomotives I've seen. Everything about it screams attention to detail. Working windows, doors, mirrors, separate switches for class lights, number boards and platform lights. Great sounds. One of the best air horns I've heard, nice strong bell and a perfect engine sound loop. Includes 5 scenarios for Sherman Hill. If only DTG's loco's could be this good.
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5 of 5 people (100%) found this review helpful
Posted: January 31, 2015
Although I bought the SD45 for the freight cars, I couldnt resist the urge to play with the diesel. The sounds, quality, and other parts of the engine are just magnificent. The freight cars arev the true reason why i bought this engine, so i could make some historical consists for my UP steam engines. The cars included are UP Low Gondolas (empty, log, and pipes), UP 50FT Boxcars, UP 100Ton Coal Cars, an Airslide Hopper, and the CA-4 Caboose.
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4 of 4 people (100%) found this review helpful
Posted: May 31
Product received for free
Got this from a friend on steam and it is VERY nice. Working windows and doors, working throttle to dynamic break. The break shoes move, and step lights, class lights, number lights. Very nice livery. All in all 9/10.
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4 of 4 people (100%) found this review helpful
Posted: November 28, 2014
I have to say Ilove this engine. It's by DTM meaning it is very good. Accurate sounds, lots of lighting settings, opening doors and windows and some interesting rollingstock. I highly recomend getting it!
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3 of 3 people (100%) found this review helpful
Posted: January 17
Overall, both the Union Pacific and Southern Pacific SD45s are great units to have. Both offer opening cab doors and windows with an operating gyrolight for the Southern Pacific model. One of the only bad things about them is how inaccurate the engine sounds are but I'm that can easily be fixed with a sound pack. All other sounds are great.
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