The Mack DM600S 1977 To 2000 Rock Guard Radiator Protector is a practical and reliable solution for protecting your radiator from bugs, stones, and other small debris. Made with heavy-duty yet lightweight black coated aluminum, this radiator protector helps reduce downtime and maintain optimal radiator performance. It fits most Mack U600, R, DM600X, DM600SX, and DM600S 1974 through 2000 models. Manufactured in the USA, this product offers durability and peace of mind. Keep your radiator in top shape with this high-quality rock guard radiator protector.