This oil pump gear set is specifically designed for the classic Citroën models 11CV, 11D, and HY with PERFO engines. The set includes high-quality gears that ensure efficient oil circulation, which is essential for maintaining engine performance and longevity. Ideal for restoration projects or maintenance of your vintage Citroën, this gear set offers reliability and precision. With a perfect fit and manufactured to original specifications, this set ensures the oil pump operates optimally, keeping your vehicle running smoothly and efficiently. An essential component for any classic Citroën vehicle enthusiast.