Feature●2-groove, serpentine pulley with shaft size of 3/4"●Made from Billet 6061-T6 aluminum for extra strength and wear●Pulley outside diameter is 6"●90-day limited warranty●Made in the U.S.A.Description March Performance 2-groove power steering pulley is precision CNC machined and is made from 6061-T6 aluminum and is finished with a no-polish clear powdercoat for extra strength and durability.