CDS Mixers & Parts | Plymouth, IN | Buy - Sell - Trade Concrete Trucks, CDS Mixers & Parts understands that your time is valuable. We offer a selection of mixer trucks and parts that are unparalleled in the industry. We keep it simple, we don't have a yard full of cars and trucks, all we offer are mixer trucks and parts. Our specific inventory allows us to easily answer your questions and pull your parts efficiently.