This is a A-937158R1 Groove Ring PN: 937158R1Main Description As Following : A-937158R1 Groove Ring P.N: 937158R1 A-937158R1 Groove Ring P.N: 937158R1 Crossed From: CV103141 VAPORMATIC Found in Section & Models : Headers/Platforms/Feeder House > Corn Head Parts, Case-IH HEAD, CORN: 824, Case-IH HEAD, CORN: 833, Case-IH HEAD, CORN: 834, Case-IH HEAD, CORN: 844, Case-IH HEAD, CORN: 853, Case-IH HEAD, CORN: 854, Case-IH HEAD, CORN: 863, Case-IH HEAD, CORN: 864, Case-IH HEAD, CORN: 873, Case-IH HEAD, CORN: 874, Case-IH HEAD, CORN: 883 Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada