This is a A-R55078 Stud, 3/8" X 1-1/2" PN: R55078Main Description As Following : A-R55078 Stud, 3/8" X 1-1/2" PN: R55078 Found in Section & Models : Engine Parts > Exhaust System Parts, John Deere COMBINE: 6600, John Deere COMBINE: 6602, John Deere COMBINE: 6620, John Deere COMBINE: 6622, John Deere COMBINE: 7700, John Deere COMBINE: 7720, John Deere COMBINE: 8820, John Deere COTTON PICKER: 9940, John Deere CRAWLER: 755A, John Deere DOZER: 850B, John Deere EXCAVATOR: 690A, John Deere EXCAVATOR: 690B, John Deere EXCAVATOR: 750, John Deere EXCAVATOR: 890A, John Deere EXCAVATOR: 892DLC, John Deere FORAGE HARVESTER: 5200, John Deere FORAGE HARVESTER: 5400, John Deere FORAGE HARVESTER: 5420, John Deere FORAGE HARVESTER: 5440, John Deere FORAGE HARVESTER: 5460 Associated Items : A-R56995 Also A-JD-O-OMH111330, A-JD-O-OMH120048, A-JD-O-OMH111330, A-JD-O-OMH120048, A-JD-O-OMH111330, A-JD-O-OMH120048, A-JD-O-OMR65460, A-SMJD202, A-SMJD203, A-FRM-JD, A-JD-O-OMR65532, A-JD-P-PC1295, A-JD-S-TM1057, A-JD-S-TM1172, A-SMJD50, A-JD-O-OMR65461, A-JD-S-TM1182, A-SMJD202, A-JD-O-OMR46935, A-SMJD203 And : Body Length: .380" Material: Stainless Steel Overall Length: 1.500" Replaces: R43170 Thread Length: .500" / .620" Thread Size: .375" NC5HF / .375" UNC