ACDelco 4L380 Professional Lawn and Garden V-Belt Provides proper cord support and full contact with the sheave-groove for uniform loading, uniform wear, and increased belt life Has flex-bonded cords that are strongly bonded to the body of the belt resulting in equal load distribution and the absorption of bending stress without cord deterioration The belts cover is a patented construction for longer cover life, providing extended protection to the core of the belt from oil, dirt, and heat Meets or exceeds RMA standards for static conductivity and heat and oil resistance