This is a A-R51734 Insert, Exhaust Valve (Std) PN: R51734Main Description As Following : A-R51734 Insert, Exhaust Valve (Std) P.N: R51734 Size: STD Replaces: R97778 JOHN DEERE , Crossed From: AV104969 VAPORMATIC , CD13979 JOHN DEERE , HCNR51734 , Found in Section & Models : Engine Parts > Engine Related Parts, John Deere BACKHOE: 310A, John Deere BACKHOE: 315CH, John Deere COMBINE: 1032, John Deere COMBINE: 1042, John Deere COMBINE: 1055, John Deere COMBINE: 1065, John Deere COMBINE: 1068H, John Deere COMBINE: 1085, John Deere COMBINE: 1133, John Deere COMBINE: 1144, John Deere COMBINE: 1157, John Deere COMBINE: 1158, John Deere COMBINE: 1166, John Deere COMBINE: 1169, John Deere COMBINE: 1170, John Deere COMBINE: 1174, John Deere COMBINE: 4435, John Deere COMBINE: 925, John Deere COMBINE: 932, John Deere COMBINE: 935 Associated Items : New Also A-JD-S-TM1087, A-JD-O-OMT71338, A-JD-S-TM1102, A-JD-O-OMT32592, A-JD-P-PC922, A-JD-S-SM2064, A-JD-O-OMT46859, A-JD-P-PC1169, A-JD-S-TM1032, A-JD-O-OMT42367, A-JD-S-TM1034, A-JD-O-OMT42367, A-JD-O-OMT66840, A-JD-S-TM1037, A-JD-S-TM1033, A-JD-O-OMT68748, A-JD-S-SM2023, A-JD-MCREPRO, A-JD-O-OMT54859, A-JD-S-SM2023 And : Size: STD