This is a A-10A8693 Muffler PN: 10A8693Main Description As Following : A-10A8693 Muffler P.N: 10A8693 Horizontal Or Vertical / Round Body - 3 1/4" Shell DiameterDim A (1): A: 2 1/2" INLET LENGTHDim B (2): B: 2 1/4" INLET I.D.Dim C (3): C: 12" SHELL LENGTHDim D (4): D: 2 1/4" OUTLET LENGTHDim E (5): E: 1 3/4" OUTLET O.D.Dim F (6): F: 17" OVERALL LENGTH Crossed From: MM-2 STANLEY MUFFLER Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, White/ Oliver/ Mpl Moline TRACTOR: 335 (UNIVERSAL & UTILITY W/ GAS ENGINE) Associated Items : A-CL214, A-RC1 Also A-MM-P-335 And : Dim A (1): A: 2 1/2" INLET LENGTH Dim B (2): B: 2 1/4" INLET I.D. Dim C (3): C: 12" SHELL LENGTH Dim D (4): D: 2 1/4" OUTLET LENGTH Dim E (5): E: 1 3/4" OUTLET O.D. Dim F (6): F: 17" OVERALL LENGTH