This is a A-NR-173 REGULATOR PN: NR-173Main Description As Following : A-NR-173 REGULATOR P.N: NR-173 For Delco Alternators: 1117732 Replaces: A-SFD221064 FORD , A-1059948M91 MASSEY FERGUSON , A-1116433 STEIGER Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : For Delco Alternators: 1117732