These high-quality O-Ring seals are designed to fit perfectly in your Cummins diesel engine ISLe M11 QSM11 ISM11. With a focus on durability and reliability, these seals are manufactured in China by Cummins, a trusted brand in the heavy equipment industry. Made with precision and attention to detail, these O-Ring seals are the perfect choice for anyone looking to maintain their equipment at its best. They are an essential part for any heavy equipment, making sure that everything runs smoothly without any leaks or other malfunctions.