This is a A-CR7229 Guard, Knife PN: CR7229Main Description As Following : A-CR7229 Guard, Knife P.N: CR7229 Replaces: Crary # CR7229, Shoup # 417229, MCM # MCM7229 Crossed From: MCM7229 MISCELLANEOUS , 417229 MISCELLANEOUS Found in Section & Models : Headers/Platforms/Feeder House > Grain Head Parts, Case-IH HEAD, CUTTING PLATFORM: 1010 (W/ Crary System 1996> W/ Wear Plates), Case-IH HEAD, CUTTING PLATFORM: 1020 (W/ Crary System 1996> W/ Wear Plates), Case-IH HEAD, CUTTING PLATFORM: 820 (W/ Crary System 1996> W/ Wear Plates), Massey Ferguson HEAD, CUTTING PLATFORM: 9100 Associated Items : New Also This is An Aftermarket Product And : Replaces: Crary # CR7229, Shoup # 417229, MCM # MCM7229