This transmission solenoid repair kit includes one solenoid with an internal wire harness, designed for use with the 0B5 DL501 automatic transmission.The is 0B5398048C and it replaces 0B5398048D.It is compatible with A4, A4 Allroad, A5, A5 Cabriolet, A5 Sportback, A6, A7, and Q5 models.The solenoid and integrated wire harness are engineered to meet OEM-equivalent specifications, supporting transmission and performance.Designed for straightforward installation, the kit aligns with factory design standards, allowing for efficient replacement without modifications.Its direct-fit design ensures compatibility and proper function within the specified transmission system, helping maintain smooth shifting and overall transmission efficiency.