|This article is about the Story Library book. You may be looking for the front loader or the little boy.|
Jack, re-titled Jack the Front Loader in 2011 and Thomas' New Friend in 2015, is the thirty-fifth book in the My Thomas Story Library series.
Jack is a new front loader on Sodor and is eager to work. On his first day, he ends up in trouble but soon jumps in at the right time to save Thomas from a collapsing bridge.
- In the Czech version, Kelly is female. However, he is still referred to as a male when the bridge falls.
- Kelly is a lighter shade of blue than he should be.