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Kubota Engine Serial Number Identification

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Kubota Engine Serial Number Identification

ENGINES MANUFACTURED BEFORE JUNE 2012


IMPORTANT: Always obtain the serial number when possible. The serial number can help determine the engine model and also help determine the correct service parts and changes based on serial number breaks.

OLD FORMAT

4-6 numbers that are sequential with no breaks for production month or year

NEW FORMAT (starting 1997)

Alpha-numeric (e.g. XJ5050 or 4J5050) with breaks for production month and year


First Digit = Production Year











1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
V W X Y 1 2 3 4 5 6 7 8 9
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
A B C D E F G H J K L M N
Second Digit = Production Month











Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
A C E G J L N Q S U W Y
B D F H K M P R T V X Z
* The letters "I" and "O" are not used in serial numbers












Where to find the serial number

The serial number is marked on the specified location per engine series as shown below.








ENGINES MANUFACTURED JUNE 1, 2012 AND AFTER

Engine Serial Number Rule (7 digits)

Starting June 1, 2012 the engine serial number will have 7 digits (currently 6 digits) and will be completely unique. This means that the engine serial numbers are mutually exclusive regardless of production plant.

e.g. Stamped Engine Serial Number

e.g.Standard Engine Serial Number

Engine Series:


Number Series
1 05 Series(Include:WG)
2 V3 Series
4 SM Series(Include:WG)
5 Air Cooled Gasoline
6 GZ,OC,AC,E Series
7 03 Series
8 07 Series


Year of manufacture:


Alhpabet or Number Year
1 2001
2 2002
3 2003
4 2004
5 2005
6 2006
7 2007
8 2008
9 2009
A 2010
B 2011
C 2012
D 2013
E 2014
F 2015
G 2016


To be continued

Month of manufacture:


Month Sequence number
January A0001~A9999 B0001~BZ999
February C0001~C9999 D0001~DZ999
March E0001~E9999 F0001~FZ999
April G0001~G9999 H0001~HZ999
May J0001~J9999 K0001~KZ999
June L0001~L9999 M0001~MZ999
July N0001~N9999 P0001~PZ999
August Q0001~Q9999 R0001~RZ999
September S0001~S9999 T0001~TZ999
October U0001~U9999 V0001~VZ999
November W0001~W9999 X0001~XZ999
December Y0001~Y9999 Z0001~ZZ999


*Alphabetical letters"I" and "O" are not used.

Where to find the serial number

The serial number is marked on the specified location per engine series as shown below.









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