This is a A-179775C1 Forged Guard PN: 179775C1Main Description As Following : A-179775C1 Forged Guard P.N: 179775C1 Two ProngBolt Diameter: .50" Square Bolt HoleReplaces: BU231 Stocked As: A-BU231 Found in Section & Models : Headers/Platforms/Feeder House > Grain Head Parts, Case-IH COMBINE: 815, Case-IH COMBINE: 915, Case-IH HEAD, CUTTING PLATFORM: 810 Associated Items : New Also A-IH-P-ENG56CYL, A-IH-P-8CYLGAS, A-IH-P-815COMBE, A-IH-P-815COMBL, A-IH-S-ENGD361, A-IH-S-ENG3400, A-IH-S-815915, A-IH-P-ENG56CYL, A-IH-P-8CYLGAS, A-IH-P-915COMBE, A-IH-P-915COMBL, A-IH-S-ENGD361, A-IH-S-ENG3400, A-IH-S-815915 And : Two Prong Bolt Diameter: .50" Square Bolt Hole Replaces: BU231