This genuine RENAULT 7700017978 injector return pipe is designed for optimal fuel system performance in a wide range of RENAULT tractor models, including the 103-12, 103-14, 103-54, 106-14, 106-54, 110-14, 110-54, 113-12, 113-14, 115-14, 118-14, 120-14, 120-54, 133-14, 133-54, 145-14, 145-54, 155-54, 58-12, 58-14, 58-32, 58-34, 61-12, 61-14, 65-12, 65-14, 65-32, 65-34, 68-12, 68-14, 70-12, 70-14, 70-32, 70-34, 75-12, 75-14, 75-32, 75-34, 77-12, 77-14, 80-12, 80-14, 80-32, 80-34, 85-12, 85-14, 85-32, 85-34, 90-12, 90-14, 90-32, 90-34, 95-12, 95-14, 95-32, and 95-34 series. It ensures proper fuel return, maintaining engine efficiency and reliability.