F350NCBMOTOR MODELS ARE SHIPPED TO DEALERS WITHOUT A LOWER UNIT SO THAT THE DEALER MAY INSTALL A LOWER UNIT WITH DESIRED SHAFT LENGTH. PLEASE USE THE CATEGORY THAT CORRESPONDS WITH YOUR MOTORS SHAFT LENGTH (F350XCC,UCC,LF350XCC,LF350UCC) OF X = 25" OR U = 30".
Numerals following the motor model code indicates the start of the manufacturing date for that series motor. For example, 0116 is used for motor series that were manufactured starting in January of 2016 until the date of the next series. If you do not know the manufacturing date you can find this information on the same label as your motor model and serial number.
