This is a A-103980C1 Exhaust Elbow PN: 103980C1Main Description As Following : A-103980C1 Exhaust Elbow P.N: 103980C1 for non aspirated exhaustOuter Hole Diameter: 3" Crossed From: AM103980C1 , , HCRP103980C1 , , WN-EL145HD , , WNEL145HD , , 101563 , Found in Section & Models : Mufflers/Exhaust Pipes > Exhaust Pipes, Case-IH TRACTOR: 1086, Case-IH TRACTOR: 1486, Case-IH TRACTOR: 1586 Associated Items : New Also A-IH-O-BATTIGN, A-IH-O-786-1586, A-IH-P-ENG56CYL, A-IH-P-786-1486, A-IH-S-AIRHEAT, A-IH-S-ENG3400, A-IH-S-TOOLSLATE, A-IH-S-TUNELATE, A-IH-S-786ETC, A-SMIH203, A-IH-O-BATTIGN, A-IH-O-786-1586, A-IH-P-ENG56CYL, A-IH-P-786-1486, A-IH-S-AIRHEAT, A-IH-S-ENG3400, A-IH-S-TUNELATE, A-IH-S-786ETC, A-SMIH202, A-IH-O-BATTIGN And : for non aspirated exhaust Outer Hole Diameter: 3"