This is a A-A162464 Muffler PN: A162464Main Description As Following : A-A162464 Muffler P.N: A162464 Dim A (1): Inlet Length: 4.000"Dim B (2): Inlet I.D.: 4.000"Dim C (3): Shell Length: 27.000"Dim D (4): Outlet Length: 4.000"Dim E (5): Outlet O.D.: 4.125"Dim F (6): Overall Length: 35.000"Dim G (7): Aspirated MufflerDim H (8): Aspirator: 1.500" O.D.Replaces: A149275, A161368, A161351, A162463 Crossed From: AMA162464 , , A149275 CASE-IH , A161351 CASE-IH , A161368 CASE-IH , A162463 CASE-IH , 1717-1025 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, Case-IH TRACTOR: 4490, Case-IH TRACTOR: 4494, Case-IH TRACTOR: 4690, Case-IH TRACTOR: 4694 Associated Items : A-EE418 Also A-CA-O-4490DSL, A-CA-P-4490, A-CA-S-44904690, A-CA-P-4494, A-IH-S-AIRHEAT, A-CA-P-4690, A-CA-S-44904690, A-CA-O-4694, A-IH-S-AIRHEAT And : Dim A (1): Inlet Length: 4.000" Dim B (2): Inlet I.D.: 4.000" Dim C (3): Shell Length: 27.000" Dim D (4): Outlet Length: 4.000" Dim E (5): Outlet O.D.: 4.125" Dim F (6): Overall Length: 35.000" Dim G (7): Aspirated Muffler Dim H (8): Aspirator: 1.500" O.D. Replaces: A149275, A161368, A161351, A162463