The seller just sent me this revised email...
"I have the motor out now and the VIN is 18N4725_5. The next to last number is almost impossible to see but it looks like a 3. It could be an 8,5, or possibly a 9. It is a light stamp and all you can make out is the bottom curve."
Future search partial VINs:
8N472535
8N472555
8N472585
8N472595
Paul