Mack Trucks will supply 325 Mack Pinnacle Model DayCab tractors to Chrysler Group Transport, effectively replacing Chrysler's previous fleet in the U.S. and Canada.

Chrysler Group Transport uses its Class 8 fleet to deliver parts to auto assembly plants and parts distribution centers. The first of the new Mack Pinnacle DayCabs have already arrived at the company's Detroit terminal. All of the new trucks are expected to be in service by the end of November.

The new tractors are equipped with Mack MP series engines and ClearTech selective catalytic reduction (SCR) technology. Mack says the combination can deliver fuel efficiency savings of 5 percent or more.

"These Mack trucks save our customers money because they use less fuel and require less maintenance," said David Barletta, Mack central region vice president. "And in meeting EPA 2010 regulations, they also deliver near-zero emissions."

"When we decided to refresh our entire fleet, quality, ease of maintenance and fuel economy topped our list of requirements," said Jean-Paul "JP" Barrette, head of Chrysler Group Transport Inc. "We are very pleased with the partnership we have developed with Mack and look forward to the deployment of the entire fleet."

Chrysler worked with Mack's parts and customer satisfaction groups, its Macungie and Hagerstown plants, Mack Financial Services, and Wiegand Mack Sales and Service, the local Mack dealership located in Sterling Heights, Mich.

"We worked closely with Chrysler to design a complete ownership package that includes Mack service support, parts support, financing, technical training, and more," said Barletta.