KELLER is an auto parts brand based in Germany and produces spare parts for a wide range of car models from various brands. KELLER produces a wide variety of spare parts, including brakes, suspension, engine, transmission, and electrical components. KELLER is known for its high quality and reliable spare parts, and its prices are competitive compared to other brands. KELLER factories are located in Germany, the United States, and India. KELLER also has a strong presence in China, where it has a joint venture with a leading Chinese auto parts manufacturer. KELLER is known for its high quality and reliable spare parts and its competitive pricing. In terms of reliability and quality, KELLER is one of the top brands in the auto parts industry.