Standard V-Belt Pulley, 3V Pitch Diameter Not Applicable, 3VX Pitch Diameter Not Applicable, 4L Pitch Diameter 7 in, 5V Pitch Diameter Not Applicable, 5VX Pitch Diameter Not Applicable, A Pitch Diameter 7 in, AX Pitch Diameter Not Applicable, B Pitch Diameter Not Applicable, BX Pitch Diameter Not Applicable, C Pitch Diameter Not Applicable, CX Pitch Diameter Not Applicable, Bore Diameter 1 in, Bore Type Fixed, For Belt Trade Size 4L, A, For V-Belt Type Classical This product contains a chemical that is regulated under California Proposition 65. Warning: This product contains a chemical known to the State of California to cause cancer. Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. -