DENSO-AU is an Australian-based auto parts manufacturer that produces parts for a range of cars, including Toyota, Subaru, Mitsubishi, Honda, and Nissan. The company produces a wide variety of spare parts, including air filters, spark plugs, alternators, fuel pumps, and other engine parts. DENSO-AU is renowned for its quality and reliability, and its parts are often seen as a more cost-effective alternative to many of its competitors. The company has factories located in Australia, China, and Thailand.