Located in the picturesque and bustling city of Portland, OR, Quality Diesel Parts (QDP), Inc. is a 105 year old (and counting) family-owned and operated business.
We specialize in serving the logging, trucking, construction, industrial, agricultural, and marine industries with diesel parts from leading manufacturers.
Originally led by D.I. Cooper, the Cooper family business has been serving the greater Portland area for over a century. Quality Diesel Parts is now under the leadership of Brian and Ginell Cooper, D.I.’s great grandson and his wife.
This dynamic duo is carrying on the tradition of providing customers with only the best parts and excellent customer service.