PART NO. A-AR53035. Gasket Set, Overhaul without Seals. John Deere INDUSTRIAL/CONSTRUCTION: 500A (SN 280000 > , 4.270 4CYL ENG),John Deere INDUSTRIAL/CONSTRUCTION: 500B (SN 280000 > , 4.270 4CYL ENG),John Deere INDUSTRIAL/CONSTRUCTION: 500C (SN 280000 > , 4.270 4CYL ENG),John Deere INDUSTRIAL/CONSTRUCTION: 510 (SN 280000 > , 4.270 4CYL ENG),John Deere TRACTOR: 3020 (SN 280000 > , 4.270 4CYL ENG)