Starting Years: 2004-2006 Edit
Starting out in 2004, Keselowski went into the season and finished 33rd in his first race. His best points finish in 2004 was 16th. He then went on to the truck series in 2005. He ended up finishing 21st. In 2006, Keselowski would drive for an injured Kelly Sutton.
Breakout Years: 2007-2009 Edit
Keselowski began competing in the Busch Series full-time in 2007. In the 2007 truck season, he replaced Ted Musgrave. In 2007, he was involved in a crash that also involved J.J. Yeley and A.J. Allmendinger.