This is a A-K914083 Muffler PN: K914083Main Description As Following : A-K914083 Muffler P.N: K914083 Vertical / Round Body - 4 1/4" Shell Diameter.Dim A (1): A: 9" INLET LENGTHDim B (2): B: 1 5/8" INLET I.D.Dim C (3): C: 20" SHELL LENGTHDim D (4): D: 5" OUTLET LENGTHDim E (5): E: 1 3/4" OUTLET O.D.Dim F (6): F: 34" OVERALL LENGTH Replaces: K921351 DAVID BROWN , Crossed From: DB-2 STANLEY MUFFLER , 1717-8601 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, David Brown TRACTOR: 1200 (W/ DIESEL ENGINE 1967-1971), David Brown TRACTOR: 880 (W/ DIESEL ENGINE 1961-1978), David Brown TRACTOR: 990 (W/ DIESEL ENGINE 1961-1978) Associated Items : A-CL158, A-RC1 Also A-CA-O-1200DB, A-CA-O-1200TK, A-SMC203, A-SMC203, A-SMC203 And : Vertical / Round Body - 4 1/4" Shell Diameter. Dim A (1): A: 9" INLET LENGTH Dim B (2): B: 1 5/8" INLET I.D. Dim C (3): C: 20" SHELL LENGTH Dim D (4): D: 5" OUTLET LENGTH Dim E (5): E: 1 3/4" OUTLET O.D. Dim F (6): F: 34" OVERALL LENGTH