This high-quality O-Ring is designed to fit Cummins ISX and QSX X15 engines with precision and accuracy. Made from durable materials, this seal is built to last and provide a reliable seal for your equipment. Whether you're in need of a replacement or simply looking for a reliable O-Ring, this product is the perfect choice. With its precise fit and durable construction, this O-Ring is an essential component for anyone who owns a Cummins ISX or QSX X15 engine. So why wait? Order your copy today and experience the benefits of this top-quality O-Ring for yourself!