The John Deere CQ38648 is a genuine OEM fuel cap designed for various John Deere agricultural and utility tractors. This essential component ensures a secure seal for the fuel tank, preventing contaminants and fuel evaporation. It is compatible with a wide range of John Deere 5E, 5M, 5R, 6M, 6R, 7R, 8R, and 9R Series models, including 5045E, 5055E, 5065E, 5075E, 5075M, 5085M, 5090M, 5090R, 5100M, 5100R, 5115M, 5115R, 5125R, 6105M, 6110M, 6115M, 6120M, 6125M, 6130M, 6135M, 6140M, 6145M, 6150M, 6155M, 6170M, 6175M, 6195M, 6215R, 6R 110, 6R 120, 6R 130, 6R 140, 6R 145, 6R 150, 6R 155, 6R 165, 6R 175, 6R 185, 6R 195, 6R 215, 6R 230, 6R 250, 7200R, 7210R, 7215R, 7230R, 7250R, 7260R, 7270R, 7280R, 7290R, 7310R, 8225R, 8235R, 8245R, 8260R, 8270R, 8285R, 8295R, 8310R, 8320R, 8335R, 8345R, 8360R, 8370R, 8400R, 9370R, 9420R, 9470R, 9520R, 9570R, 9620R, 9470RT, 9520RT, 9570RT, 9620RT, 9470RX, 9520RX, 9570RX, 9620RX models.