Goodyear Insta-Power belts for Lawn & Garden Equipment and Other Demanding Power Drive Applications. Built for strength and endurance. Every element of the Insta-Power V-belt is designed to deliver premium, long-life performance in demanding outdoor power equipment sevice. They are engineered to withstand the abuse of repeated sudden shock loads, tolerate high ambient temperatuires, and resist damaging effects of oil and dust.  

THIS IS THE HEAVY DUTY GOODYEAR BELT # 84570    1/2 inch wide   X    57 inch outside circumference

                                                                                                                     GATES #  6857

                                                                                                                     DAYCO #   L457