This turbocharger cartridge is compatible with a range of Volkswagen, Audi, Seat, and Skoda models equipped with the 1.4TSI engine. It is designed for various model years and horsepower outputs, including specific applications for Volkswagen Golf-5, Golf-6, Polo-5, Scirocco, Tiguan, Touran, and Seat Ibiza-5, Alhambra II, and Skoda Fabia models. The turbo models covered include K03, K03-0248, K03-248, K03-0162, K03-162, K03-0150, K03-150, K03-0142, K03-142, K03-0099, and K03-099. Key part numbers and OEM numbers associated with this cartridge are 53039880248, 53039700248, 53039880162, 53039880150, 53039700142, 53039880099, and 53039880142.