This is a A-R40212 Pulley, Water Pump (Single Groove) PN: R40212Main Description As Following : A-R40212 Pulley, Water Pump (Single Groove) PN: R40212 Found in Section & Models : Cooling Systems > Water Pumps, Pulleys, & Gaskets, John Deere TRACTOR: 4000 (Gas & Diesel W/O AC), John Deere TRACTOR: 4010 (Gas), John Deere TRACTOR: 4020 (Gas & Diesel W/O AC) Associated Items : New Also A-JD-O-OMR46934, A-JD-O-OMR48273, A-JD-P-PC1116, A-JD-S-TM1006, A-SMJD203, A-FRM-JD, A-JD-O-OMR32129, A-JD-P-PC737, A-JD-S-SM2039, A-MW-OP-JD4010, A-MW-S-TURBO, A-SMJD203, A-FRM-JD, A-JD-O-OMR34410, A-JD-O-OMR41754, A-JD-O-OMR46934, A-JD-O-OMR48273, A-JD-P-PC1116, A-JD-P-PC859, A-JD-S-SM2039 And : This is a stamped steel pulley. When replacing cast pulley w/ sheet metal pulley, the pulley hub outer surface must project beyond
the end of pump bearing shaft 9/64" Replaces: R33380, AR40149