This is a A-1022401M1 Muffler PN: 1022401M1Main Description As Following : A-1022401M1 Muffler P.N: 1022401M1 Vertical / Round Body - 6" Shell DiameterDim A (1): A: 1 1/2" INLET LENGTHDim B (2): B: 3 15/16" INLET I.D.Dim C (3): C: 19" SHELL LENGTHDim D (4): D: 3 1/4" OUTLET LENGTHDim E (5): E: 4" OUTLET O.D.Dim F (6): F: 24" OVERALL LENGTH Crossed From: MF-5 STANLEY MUFFLER Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, Massey Ferguson TRACTOR: 97 (W/ DIESEL ENGINE 1962-1964) Associated Items : A-CL400, A-RC9 Also A-MH-O-MF97, A-MH-P-MF97 And : Vertical / Round Body - 6" Shell Diameter Dim A (1): A: 1 1/2" INLET LENGTH Dim B (2): B: 3 15/16" INLET I.D. Dim C (3): C: 19" SHELL LENGTH Dim D (4): D: 3 1/4" OUTLET LENGTH Dim E (5): E: 4" OUTLET O.D. Dim F (6): F: 24" OVERALL LENGTH