This is a A-AR26640 Muffler, Slotted Inlet PN: AR26640Main Description As Following : A-AR26640 Muffler; Slotted Inlet P.N: AR26640 Vertical / Round Body - 6" Shell DiameterSlotted Inlet (OEM Is Flanged)Dim A (1): A: 3" INLET LENGTHDim B (2): B: 2 15/16" INLET I.D.Dim C (3): C: 20" SHELL LENGTHDim D (4): D: 3" OUTLET LENGTHDim E (5): E: 2 5/8" OUTLET O.D.Dim F (6): F: 26" OVERALL LENGTHReplaces: AR26786 Replaces: AR26786 JOHN DEERE , Crossed From: AMAR26640 , , DR-21 STANLEY MUFFLER , TP-AR26640 , , TP-AR26786 , , WN-AR26640 , , WNAR26640 , , 1417-4503 , Found in Section & Models : Mufflers/Exhaust Pipes > Mufflers, John Deere TRACTOR: 3010 (W/ GAS & LP ENGINES OR DIESEL ENGINE SN <1T6643), John Deere TRACTOR: 3020 (W/ GAS & LP ENGINES), John Deere TRACTOR: 4000 (W/ GAS & LP ENGINES), John Deere TRACTOR: 4010 (W/ GAS & LP ENGINES OR DIESEL ENGINE SN <2T7026), John Deere TRACTOR: 4020 (W/ GAS & LP ENGINES), John Deere TRACTOR: 4620, John Deere TRACTOR: 5010, John Deere TRACTOR: 7020, John Deere TRACTOR: 8430, John Deere TRACTOR: 8440, John Deere TRACTOR: 8630, John Deere TRACTOR: 8640 Associated Items : A-CL300, A-RC7 Also A-FRM-JD, A-JD-O-OMR32385, A-JD-P-PC736, A-JD-S-SM2038, A-SMJD203, A-FRM-JD, A-JD-O-OMR34406, A-JD-O-OMR41753, A-JD-O-OMR46012, A-JD-O-OMR48271, A-JD-P-PC1115, A-JD-P-PC858, A-JD-S-SM2038, A-JD-S-TM1005, A-SMJD203, A-JD-O-OMR46934, A-JD-O-OMR48273, A-JD-P-PC1116, A-JD-S-TM1006, A-SMJD203 And : Vertical / Round Body - 6" Shell Diameter Slotted Inlet (OEM Is Flanged) Dim A (1): A: 3" INLET LENGTH Dim B (2): B: 2 15/16" INLET I.D. Dim C (3): C: 20" SHELL LENGTH Dim D (4): D: 3" OUTLET LENGTH Dim E (5): E: 2 5/8" OUTLET O.D. Dim F (6): F: 26" OVERALL LENGTH Replaces: AR26786