In Reply to: Re: Engine Serial Number posted by Bill in NC on February 21, 2014 at 08:02:21:
According to John Smith's site:
"Serial numbers on all NAA models start and end with a diamond symbol. Because of the two locations for the serial number and the common practice of owners buying rebuilt engines on an exchange basis , it's possible to have an early NAA with a later engine that will have no serial number at all. It's also possible to have a later NAA with an early engine and the tractor will have 2 serial numbers. Another curiosity with NAA serial numbers that is unique to the NAA model is that preceeding zeroes were used on the the low numbers so all have 5 digits (6 on the last ones built). The lowest verified serial number we've heard of is NAA00034 - three zeroes and 34, the 34th production NAA."
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