This is a A-AR86602 Muffler PN: AR86602Main Description As Following : A-AR86602 Muffler P.N: AR86602 Vertical / Oval Body - 5 1/2" X 9 1/2" Shell Dimension. New Design Replaces Flared Inlet MufflerDim A (1): A: 5" INLET LENGTHDim B (2): B: 3 15/16" INLET I.D.Dim C (3): C: 30 1/4" SHELL LENGTHDim D (4): D: 3 1/4" OUTLET LENGTHDim E (5): E: 4" OUTLET O.D.Dim F (6): F: 38" OVERALL LENGTH Crossed From: AMAR86602 , , DR-34 STANLEY MUFFLER , TP-AR86602 , , 1417-4533 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, John Deere TRACTOR: 4555, John Deere TRACTOR: 4640, John Deere TRACTOR: 4650, John Deere TRACTOR: 4755, John Deere TRACTOR: 4840, John Deere TRACTOR: 4850, John Deere TRACTOR: 4955 Associated Items : A-DR400A, A-RC9 Also A-JD-O-OMR65463, A-SMJD202, A-JD-O-OMRW16854, A-JD-O-OMR65463, A-SMJD202, A-JD-O-OMRW16854 And : Vertical / Oval Body - 5 1/2" X 9 1/2" Shell Dimension. New Design Replaces Flared Inlet Muffler Dim A (1): A: 5" INLET LENGTH Dim B (2): B: 3 15/16" INLET I.D. Dim C (3): C: 30 1/4" SHELL LENGTH Dim D (4): D: 3 1/4" OUTLET LENGTH Dim E (5): E: 4" OUTLET O.D. Dim F (6): F: 38" OVERALL LENGTH