However, if you do not find it there, try lifting and looking under the seat at the top right-hand area of the frame. There you will find a statement that reads “Manufactured by John Deere.” It is 13 or 17 digits long. You can locate the serial number or PIN on the mainframe of the tractor near the left rear wheel. The numbers can be 13 or 17 digits long, and there are some steps to read a serial number on a John Deere lawn tractor. Also, the length of the number sequence will vary as well, primarily based on the age of the lawn tractor. Similarly, these numbers are also called Lawn Mower ID No.ĭepending on the type of lawn tractor, its features, and age of manufacture, the serial number can be found in several different locations on the tractor. John Deere’s products are all identified by a serial number, which Deere also refers to as PIN or product identification number. Their tractors are for both residential and commercial use. John Deere, one of the most reliable brands of lawn mower, manufactures tons of styles and models.