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Serial Number Search Serial Number Search

Serial Number Search

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

Second Digit = Production Month

Jan
A
B
Feb
C
D
Mar
E
F
Apr
G
H
May
J
K
Jun
L
M
Jul
N
P
Aug
Q
R
Sep
S
T
Oct
U
V
Nov
W
X
Dec
Y
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.

Kubota Super Mini Series

Kubota Super Mini Series

Located on the side of fixing point of injection pump

Kubota 05 Series

Kubota 05 Series

Below exhaust manifold

Over crankcase, flywheel side

Kubota 03 Series

Kubota 03 Series

Located on the mounting surface of injection pump

Kubota 07 Series

Kubota 07 Series

Below intake manifold

Over crankcase, fan side

Kubota V3 Series

Kubota V3 Series

Below intake manifold

Over crankcase, flywheel side

Kubota EA/EL Series

Kubota EA/EL Series

Mounting surface at gear case side

Kubota OC Series

Kubota OC Series

Mounting surface at fan side

Kubota WG Series (WG752/WG972)

Kubota WG Series (WG752/WG972)

Located on the side of fixing point of injection pump

Kubota WG Series (WG1605)

Kubota WG Series (WG1605)

Below exhaust manifold

Over crankcase, flywheel side

Kubota WG Series (WG2503)

Kubota WG Series (WG2503)

Located on the mounting surface of injection pump

All Engines

All Engines

Over cylinder head of engine

All Models

All Models

Do not use the model information shown on EPA labels.

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

Before May 2012 Production

From June 2012 production

e.g. Stamped Engine Serial Number

Engine Series

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

Year of manufacture

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
H
2017
J
2018

(To be continued)

Month of manufacture

Month
Sequence number
  1. 1st unit~9999th unit
  2. 10000th unit~19998th unit
  3. 19999th unit~20997th unit
  4. 20998th unit~21996th unit
January
A0001~A9999
B0001~B9999
BA001~BA999
BB001~BB999
February
C0001~C9999
D0001~D9999
DA001~DA999
DB001~DB999
March
E0001~E9999
F0001~F9999
FA001~FA999
FB001~FB999
April
G0001~G9999
H0001~H9999
HA001~HA999
HB001~HB999
May
J0001~J9999
K0001~K9999
KA001~KA999
KB001~KB999
June
L0001~L9999
M0001~M9999
MA001~MA999
MB001~MB999
July
N0001~N9999
P0001~P9999
PA001~PA999
PB001~PB999
August
Q0001~Q9999
R0001~RZ999
Q0001~Q9999
R0001~RZ999
September
S0001~S9999
T0001~T9999
TA001~TA999
TB001~TB999
October
U0001~U9999
V0001~V9999
VA001~VA999
VB001~VB999
November
W0001~W9999
X0001~X9999
XA001~XA999
XB001~XB999
December
Y0001~Y9999
Z0001~Z9999
ZA001~ZA999
ZB001~ZB999

*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.

Kubota Super Mini Series

Kubota Super Mini Series

Located on the side of fixing point of injection pump

Kubota 05 Series

Kubota 05 Series

Below exhaust manifold

Over crankcase, flywheel side

Kubota 03 Series

Kubota 03 Series

Located on the mounting surface of injection pump

Kubota 07 Series

Kubota 07 Series

Below intake manifold

Over crankcase, fan side

Kubota V3 Series

Kubota V3 Series

Below intake manifold

Over crankcase, flywheel side

Kubota EA/EL Series

Kubota EA/EL Series

Mounting surface at gear case side

Kubota OC Series

Kubota OC Series

Mounting surface at fan side

Kubota WG Series (WG752/WG972)

Kubota WG Series (WG752/WG972)

Located on the side of fixing point of injection pump

Kubota WG Series (WG1605)

Kubota WG Series (WG1605)

Below exhaust manifold

Over crankcase, flywheel side

Kubota WG Series (WG2503)

Kubota WG Series (WG2503)

Located on the mounting surface of injection pump

Kubota WG Series (WG3800)

Kubota WG Series (WG752/WG972)

Below intake manifold

Over crankcase, flywheel side

All Engines

All Engines

Over cylinder head of engine

All Models

All Models

Do not use the model information shown on EPA labels.

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