Home of NAPA 2nd Saturday! Save up to 50% on everything in the store on the 2nd Saturday of every month! NAPA Auto Parts has the largest parts inventory in the Northwest/Portland/Oregon stocking over 400,000 parts. NAPA is the only parts supplier with same day or next delivery service on over 400,000 parts. NAPA is America's first choice for automotive parts and accessories and the leading supplier of specialty parts and equipment for the collision repair, heavy-duty truck, and industrial markets. NAPA tools and equipment have set the industry standard for quality and value.