This is a A-117872A1 Feeder House Chain, Smooth Slat PN: 117872A1Main Description As Following : A-117872A1 Chain, Feeder House; Smooth Slat P.N: 117872A1 For 54" feeder house - 12 SlatsC to C Of Sprocket: 36 3/8"Links: 69Quantity-Chain: 2-CA557 Replaces: FIHC1480167C *** NO CLASS *** , 1324271C91 IH COMBINE , Crossed From: AM117872A1 , , AV100619 VAPORMATIC , F1480 SHOUP , F1688 SHOUP , WN-117872A1 , , 117872A1-N , , 300-C117872 , , 300C117872 , Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Chain, Case-IH COMBINE: 1480, Case-IH COMBINE: 1482, Case-IH COMBINE: 1680, Case-IH COMBINE: 1682, Case-IH COMBINE: 1688, Case-IH COMBINE: 2188 Associated Items : A-CA557C, A-CA557O Also A-IH-O-1440COMB, A-IH-P-ENG56CYL, A-IH-P-1480COMB, A-IH-S-ENG3400, A-IH-S-1440COMB, A-IH-S-1482COMB, A-IH-S-1660COMB, A-IH-S-1660COMB And : For 54" feeder house - 12 Slats C to C Of Sprocket: 36 3/8" Links: 69 Quantity-Chain: 2-CA557