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Modena, Wisconsin | There were a couple more differences other than the engine like the 45 had syncros for reverse and the 46 didn't. The main problem with the 45 was the air cleaner system was prone to catching on fire which created the upgrade to a 4620 engine program. The 4620 engine was slightly different than the 45 other than the intercooler and turbo as it did have a different pump which was an improvement also. The "recall" was really an upgrade program where the 4620 engine was installed at "cost". My 45 still had the original engine when I got it but the air cleaner system was the newer 4620 system. | |
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Deere 4520
