Replaces MTD belt numbers: 754-04043, 954-04043, 754-04043A, 954-04043A. Check your owners parts list for proper belt application. Kevlar® corded belts, also called Aramid or extra-heavy duty belts are constructed of organic polyaramide fibers that are manufactured using complex chemical processes. **Interesting fact: Kevlar® is the same material bulletproof vests are constructed with. Kevlar® is used in PIX belts as a tension member because of its inherent stability and high tensile strength Cord