This is a A-362483R91 Muffler PN: 362483R91Main Description As Following : A-362483R91 Muffler P.N: 362483R91 Horizontal / Round Body - 4 1/4" Shell DiameterDim A (1): A: 2" INLET LENGTHDim B (2): B: 1 5/8" INLET I.D.Dim C (3): C: 19 1/2" SHELL LENGTHDim D (4): D: 2" OUTLET LENGTHDim E (5): E: 1 3/4" OUTLET O.D.Dim F (6): F: 24" OVERALL LENGTH Crossed From: IH-5 STANLEY MUFFLER , 1717-3445 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, Case-IH TRACTOR: 300 (SN 9501-62482 W/ C-169 GAS ENGINE) Associated Items : A-CL134, A-CL158 Also A-CA-O-300, A-CON-S-ZDGDETC, A-IH-C-MUSCLES, A-IH-O-ROTCUTFH, A-IH-P-HYDTCH, A-IH-S-CARBSPEC, A-IH-S-ENGGASE, A-IH-S-HMTRANFD, A-IH-S-TOOLSLATE, A-IH-S-TUNEUP, A-SMIH10 And : Horizontal / Round Body - 4 1/4" Shell Diameter Dim A (1): A: 2" INLET LENGTH Dim B (2): B: 1 5/8" INLET I.D. Dim C (3): C: 19 1/2" SHELL LENGTH Dim D (4): D: 2" OUTLET LENGTH Dim E (5): E: 1 3/4" OUTLET O.D. Dim F (6): F: 24" OVERALL LENGTH