Reference: A56 V Belt Top Width: 1/2 in Height: 5/16 in Length: 56 in Inside, 58 in Outside Equivalent to: 4L580, 4L-580, A56, 4L 580, A 56, A-56, Dayco AP56, BTQ-A56, A56 D&D Power Drive
Reference: A56 V Belt Top Width: 1/2 in Height: 5/16 in Length: 56 in Inside, 58 in Outside Equivalent to: 4L580, 4L-580, A56, 4L 580, A 56, A-56, Dayco AP56, BTQ-A56, A56 D&D Power Drive