This is a A-70219534 Muffler PN: 70219534Main Description As Following : A-70219534 Muffler P.N: 70219534 Vertical / Round Body - 3 1/4" Shell DiameterDim A (1): A: 2 1/4" INLET LENGTHDim B (2): B: 1 5/8" INLET I.D.Dim C (3): C: 16 1/2" SHELL LENGTHDim D (4): D: 10 1/4" OUTLET LENGTHDim E (5): E: 1 3/4" OUTLET O.D.Dim F (6): F: 29" OVERALL LENGTH Crossed From: AC-2 STANLEY MUFFLER , AM70219534 , , 1617-2538 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, Allis-Chalmers TRACTOR: WC, Allis-Chalmers TRACTOR: WD (W/ GAS ENGINE 1948-1953) Associated Items : A-RC1 Also A-AC-C-WC1934, A-AC-C-1935, A-AC-O-WC, A-AC-P-WCWF, A-AC-S-WCWFRC, A-FRM-ACCACO, A-SMAC11, A-AC-O-WD, A-AC-O-WDATTCH, A-AC-OP-WDDTIL, A-AC-P-PLOWS, A-AC-P-WDWD45D, A-AC-S-WDWD45, A-AC-S-WDWD45LP, A-FRM-ACCACO, A-SMAC11 And : Vertical / Round Body - 3 1/4" Shell Diameter Dim A (1): A: 2 1/4" INLET LENGTH Dim B (2): B: 1 5/8" INLET I.D. Dim C (3): C: 16 1/2" SHELL LENGTH Dim D (4): D: 10 1/4" OUTLET LENGTH Dim E (5): E: 1 3/4" OUTLET O.D. Dim F (6): F: 29" OVERALL LENGTH