Jeff Wallis has been named general manager of Parts Sales & Marketing for Freightliner LLC, where his responsibilities include increasing parts sales and profitability for the combined Freighter and Detroit Diesel Corp. (DDC) aftermarket parts business worldwide. Wallis reports to Jack Conlan, sr. vp-customer support.

Prior to this position, Wallis worked at DDC for 17 years, most recently as sr. vp-parts, service and customer support. He replaces Michele Calbi, who left Freightliner to pursue other interests.