This is a A-403825R1 Muffler PN: 403825R1Main Description As Following : A-403825R1 Muffler P.N: 403825R1 Vertical / Round Body - 5 1/2" Shell DiameterDim A (1): A: 2 1/2" INLET LENGTHDim B (2): B: 1 15/16" INLET I.D.Dim C (3): C: 14 1/2" SHELL LENGTHDim D (4): D: 10" OUTLET LENGTHDim E (5): E: 2" OUTLET O.D.Dim F (6): F: 27" OVERALL LENGTH Replaces: 10811T NELSON GLOBAL PRODUCTS , Crossed From: IH-11 STANLEY MUFFLER , 1717-3403 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, Case-IH ENGINE: BD154, Case-IH INDUSTRIAL/CONSTRUCTION: 2424 (W/ B-144 GAS OR BD-144 DIESEL ENGINE), Case-IH INDUSTRIAL/CONSTRUCTION: 2444 (W/ B-144 GAS OR BD-144 DIESEL ENGINE), Case-IH INDUSTRIAL/CONSTRUCTION: 2504 (W/ C-135 GAS ENGINE), Case-IH INDUSTRIAL/CONSTRUCTION: 3414 (W/ B-144 GAS OR BD-144 DIESEL ENGINE), Case-IH TRACTOR: FARMALL 504, Case-IH TRACTOR: I-504 (W/ C-135 GAS ENGINE), Case-IH TRACTOR: 2444, Case-IH TRACTOR: 2504, Case-IH TRACTOR: 424 (W/ B-144 GAS OR BD-144 DIESEL ENGINE), Case-IH TRACTOR: 444 (W/ B-144 GAS OR BD-144 DIESEL ENGINE), Case-IH TRACTOR: 504 (W/ C-135 GAS ENGINE) Associated Items : A-CL200, A-RC2 Also A-IH-P-ENG-4DSL, A-IH-S-BC144, A-IH-S-CAVDSLP, A-IH-O-2424LB, A-IH-O-3121, A-IH-P-3082, A-IH-P-4242424, A-SMIH201, A-IH-O-2444, A-IH-O-3121, A-IH-P-ENG-4DSL, A-IH-P-ENG14CYL, A-IH-P-4442444, A-SMIH201, A-IH-O-2504-I, A-IH-O-3121, A-IH-P-3082, A-IH-P-5042504, A-SMIH201, A-IH-O-3121 And : Vertical / Round Body - 5 1/2" Shell Diameter Dim A (1): A: 2 1/2" INLET LENGTH Dim B (2): B: 1 15/16" INLET I.D. Dim C (3): C: 14 1/2" SHELL LENGTH Dim D (4): D: 10" OUTLET LENGTH Dim E (5): E: 2" OUTLET O.D. Dim F (6): F: 27" OVERALL LENGTH