County Motor Parts Co., Inc. is your locally owned Napa Auto Parts supplier. CMP supplies a wide variety of Automobile, Truck, Agricultural Parts and Accessories. CMP currently has over 600 suppliers that we deal with on a daily basis, so whatever job or repair you need to get done, we can help you accomplish that task efficiently. From boats and garden tractors, to trailers and semi-trucks, we’ve got you covered. We also custom make Hydraulic Hoses and Battery Cables. We sell Automotive and Heavy Duty Parts and Accessories, Farming, Agriculture, Industrial, Hydraulic Hoses and Crimping. We are more than just a parts store.