DOVER, Del. ( David Newton / ESPN.com ) -- Reigning Sprint Cup champion Brad Keselowski lost points off the track for the second time this season.
The Penske Racing driver was docked six points Tuesday while crew chief Paul Wolfe was fined $25,000 because the front end of Keselowski's No. 2 Ford was found to be too low during inspection after Sunday's race at Dover International Speedway.
Penske Racing claimed in a statement that the car was too low because of a broken part.
"The Penske Racing No. 2 Miller Lite Ford Fusion experienced a part failure during Sunday's Dover Sprint Cup Series Race which resulted in the car's front end being too low when presented for post-race inspection," the team's statement said. "The problem is being addressed internally to ensure it does not occur again and the team is not planning to appeal the penalty."
Keselowski finished fifth in the race and moved up two spots in the standings to eighth. But Tuesday's penalties dropped Keselowski to 10th in the standings, eight points ahead of Jeff Gordon. Penske Racing owner Roger Penske also was docked six owner's points. The team said it does not plan to appeal the penalties.
Wolfe, who already was on probation for violations discovered before an April race at Texas, will remain on probation through Dec. 31.
Wolfe and other top Penske crew members returned from a three-race suspension -- two point races and the All-Star race -- at Dover. The suspension, for unapproved parts in the rear end housing, was reduced from six point events during the appeal process.
Keselowski was docked 25 points for that infraction.