This is a A-170BH Cup PN: 170BHMain Description As Following : A-170BH Cup P.N: 170BH A-170BH Cup P.N: 170BH Stocked As: A-L44610-I , Crosses To: A-L44610-I , Found in Section & Models : Hay Tool Parts > Rotary Cutter Parts, Bush Hog ROTARY CUTTER: SEVERAL Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada