PRR M1b Mountain


Not sure which version to choose? Click here

Select 2009, 2010, 2012 Pre Sp1, Mac 1 if you use:
Trainz 2009, Trainz 2010, Trainz 2012 - Build 49922 or Trainz Mac 1

Select 2012 Sp1, T:ANE, Mac 2 if you use:
Trainz 2012 Sp1 - Build 57720 or higher, Trainz New Era or Trainz Mac 2

How to find your Trainz build number:

  1. Open the Trainz App on your computer
  2. Before launching the game, locate the 5 digit build number on the bottom right corner of the launch window


  •  3 Part Echo Whistle
    3 Part Echo Whistle
  •  Alpha Running Numbers
    Alpha Running Numbers
  •  Animated Coupler
    Animated Coupler
  •  Bill, Steve & Justin Cab Figures
    Bill, Steve & Justin Cab Figures
  •  Blueprint Design
    Blueprint Design
  •  Doghouse Interior Views
    Doghouse Interior Views
  •  Glowing Firebox
    Glowing Firebox
  •  Multiple Outside Views
    Multiple Outside Views
  •  Photographic Texturing
    Photographic Texturing


Highly considered to be the best steam locomotives the PRR ever produced for freight, the M1’s provided both high speeds and immense power. Although originally designed for mixed service, the sporadic passenger assignments entitled them to Keystone numberplate rather than the standard round freight plates. Due to extensive electrification, a large surplus of K4’s were available for the passenger services, so all the M1’s saw themselves used primarily on the heavier fast freights. The first prototype spent from 1923-1926 being tested, resulting in the first order of (200) to be built by Baldwin and Lima, followed by (100) more being ordered in 1930. They produced 69,700 lbs of tractive effort resting on (8) 72” drive wheels. This allowed for 100+ car trains to be hauled at speeds exceeding 65mph.

Today: Only (1) of the (301) M1’s survives:

#6755 is on display at the Railroad Museum of PA in Strasburg, PA

PRR M1b Mountain set includes: Engine and Tender

Product Installation

  1. Download the file included in your order confirmation email or from your account downloads.
  2. Launch your Trainz Content Manager.
  3. Drag the downloaded cdp file into the content manager window.
    While in content manager, go to FILE on the top left and select "import cdp" or "import content", find your downloaded cdp and select.

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