This is a A-B3641R Manifold, Intake & Exhaust PN: B3641RMain Description As Following : A-B3641R Manifold, Intake & Exhaust P.N: B3641R A-B3641R Manifold, Intake & Exhaust P.N: B3641R Replaces: B3642R JOHN DEERE , Crossed From: TP-B3641-42R , , WN-B3641R WORTHINGTON MOWER CO , 701748 , Found in Section & Models : Engine Parts > Exhaust System Parts, John Deere TRACTOR: 520, John Deere TRACTOR: 530 Associated Items : New Also A-FRM-JD, A-JD-O-OMR2051, A-JD-P-PC527, A-JD-S-SM2022, A-JD-S-SM2024, A-JD-S-SM2029, A-JD-S-SM2045, A-JD-S-SM2050, A-SMJD16, A-FRM-JD, A-JD-O-OMR20710, A-JD-P-PC527, A-JD-S-SM2024, A-JD-S-SM2029, A-JD-S-SM2045, A-JD-S-SM2050, A-SMJD16 And : High Quality Afternaket Shipped from Both US and Canada