This is a A-361116R91 Muffler PN: 361116R91Main Description As Following : A-361116R91 Muffler P.N: 361116R91 Horizontal / Round Body - 3 1/4" Shell DiameterDim A (1): A: 2 3/4" INLET LENGTHDim B (2): B: 1 3/8" INLET I.D.Dim C (3): C: 12 1/2" SHELL LENGTHDim D (4): D: 6 3/4" OUTLET LENGTHDim E (5): E: 1 1/2" OUTLET O.D.Dim F (6): F: 22" OVERALL LENGTH Crossed From: IH-2 STANLEY MUFFLER , 1717-3425 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, Case-IH TRACTOR: CUB LO-BOY Associated Items : A-CL112 Also This is An Aftermarket Product And : Dim A (1): A: 2 3/4" INLET LENGTH Dim B (2): B: 1 3/8" INLET I.D. Dim C (3): C: 12 1/2" SHELL LENGTH Dim D (4): D: 6 3/4" OUTLET LENGTH Dim E (5): E: 1 1/2" OUTLET O.D. Dim F (6): F: 22" OVERALL LENGTH