This is a A-251175R21 Manifold PN: 251175R21Main Description As Following : A-251175R21 Manifold P.N: 251175R21 Use gasket 352014R1 Replaces: 251175R1 IH , Crossed From: AM251175R21 , , HCRP251175R21 , , WN-251175R21 , , WN251175R21 , , 101542 , , 1709-0989 , , 1709-0992WG , , 533711 , Found in Section & Models : Engine Parts > Exhaust System Parts, Case-IH TRACTOR: A (W/ C113 & C123 GAS ENGINES), Case-IH TRACTOR: B (W/ C113 & C123 GAS ENGINES), Case-IH TRACTOR: C (W/ C113 & C123 GAS ENGINES), Case-IH TRACTOR: SUPER A (W/ C113 & C123 GAS ENGINES), Case-IH TRACTOR: SUPER C (W/ C113 & C123 GAS ENGINES), Case-IH TRACTOR: 100 (W/ C113 & C123 GAS ENGINES), Case-IH TRACTOR: 200 (W/ C113 & C123 GAS ENGINES), Case-IH TRACTOR: 230 (W/ C113 & C123 GAS ENGINES, SN 501-36000), Case-IH TRACTOR: 240 (W/ C113 & C123 GAS ENGINES, SN 501-36000) Associated Items : A-352014R1 Also A-FRM-IHOL, A-IH-C-DOMGENCAT, A-IH-C-MUSCLES, A-IH-C-1936FULL, A-IH-O-AAV, A-IH-O-ABSPCLA, A-IH-O-AIMPLS, A-IH-O-A1939, A-IH-P-AB, A-IH-P-ACCESSORY, A-IH-P-AW18MWR, A-IH-S-AAVBBN, A-IH-S-CARBSPEC, A-IH-S-CLUTCH, A-IH-S-ENGGASE, A-IH-S-HAYMAHNS, A-IH-S-TUNEUP, A-MAG-S-317, A-SMIH8, A-FRM-IHOL And : Use gasket 352014R1