Chuggington Wiki

―Zack's catchphrase

Zack is the leader of the Chuggineers. He was first introduced in the fourth season episode, Rescue at Rocky Ridge.


Zack joins Chuggington to head up the Chuggineers. This foreman is organised, hard-working and extremely safety conscious, making him the perfect leader of the Chuggineer crew and mentor to Brewster. Joined by his fellow team members Tyne and Fletch, this engineering team are responsible for all the heavy lifting, loading and building of bridges, tunnels, stations as well as laying track and making repairs.

Technical Details[]


Zack is an Electro-Motive Division (EMD) DDA40X "Centennial", built specifically for the Union Pacific Railroad (UP) from 1969 to 1971. As of today, Centennial 6936 is the only operational member of the class and is used in both excursion service and occasional revenue freight service. On 28 April 2022, Union Pacific has donated 6936 to the Railroading Heritage of Midwest America (RRHMA), based in Silvis, IL.


Zack is painted blue with white stripes, red base, and an orange caution stripe between two big white caution stripes. He also has caution stripes on his front plough, backplate, and the left and right sides of his fuel tank and on top of where the headlights are above the engine.




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Audio Files[]


First used Last used Sound Effect


  • During production, he went through a couple different names: "Mack" and "Boyd". His basis was also, at one point, planned to be an Electro-Motive Division (EMD) DDA40X.
  • In German, he is called "Max".
  • As seen in some promotional art, production photos and merchandise prototypes, Zack was originally going to have bright blue eyes. They were changed to brown shortly afterwards.
  • Zack's horn is Jackman's at a lower pitch.
  • Zack is the only original member of the Chuggineers to still appear in the sixth season, as neither Fletch nor Tyne have appeared since the fifth season episode Fletch Shines.
  • Zack, Fletch and Tyne are the only chuggers with a Co-Co wheel arrangement.
    • Coincidentally, all of them are members of the Chuggineers.