This is a A-117871A1-S Feeder House Chain, Serrated Slat PN: 117871A1-SMain Description As Following : A-117871A1-S Chain, Feeder House; Serrated Slat P.N: 117871A1-S For 54" feeder house; 1/4" Serrated Slat Every 6th Link; Chrome Pins - 12 SlatsC to C Of Sprocket: 27 1/4"Links: 69Quantity-Chain: 2-CA557 Replaces: FIHCE1440167CS *** NO CLASS *** , FIHC1440167CS *** NO CLASS *** , Crossed From: AV100618 VAPORMATIC Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Chain, Case-IH COMBINE: 1440, Case-IH COMBINE: 1460, Case-IH COMBINE: 1640, Case-IH COMBINE: 1644, Case-IH COMBINE: 1660, Case-IH COMBINE: 1666, Case-IH COMBINE: 2144, Case-IH COMBINE: 2166, Case-IH COMBINE: 2344, Case-IH COMBINE: 2366 Associated Items : A-CA557C, A-CA557O Also A-IH-O-1440COMB, A-IH-P-ENG56CYL, A-IH-P-1440COMB, A-IH-S-ENG3400, A-IH-S-1440COMB, A-IH-O-1440COMB, A-IH-P-ENG56CYL, A-IH-P-1460COMB, A-IH-S-ENG3400, A-IH-S-1440COMB, A-IH-S-1660COMB, A-IH-S-1660COMB And : For 54" feeder house; 1/4" Serrated Slat Every 6th Link; Chrome Pins - 12 Slats C to C Of Sprocket: 27 1/4" Links: 69 Quantity-Chain: 2-CA557