Kubota Engine Identification Guide
In many cases it is necessary to identify the Kubota® Engine Number in order to ascertain the correct engine kit for an application. Starting Jun 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 mutally exclusive regardless of production plant. All Kubota® Engines should contain one of the two following formats for engine numbering (dependent on the production date):
Before May 2012 Production Engine Numbers:
From June 2012 Production Engine Numbers:
Where to find the serial number
The serial number is marked on the specified location per engine series as shown below.
Below exhaust manifold, over crankcase, flywheel side
Located in the mounting surface of injection pump
The suffix (separated by a dash or dashes) specifies the features of the engine:
Code |
Feature |
T |
Turbocharged (without this code means naturally aspirated) |
DI |
Direct injection (without this code means indirect injection) |
CR |
Common-rail direct injection system |
I |
Intercooled |
B |
Emission: early industrial diesel and early gasoline |
EB |
Emission: Tier 1 industrial diesel |
E2B |
Emission: Tier 2 industrial diesel |
E3B |
Emission: |
Under 19 kW |
Tier 4 industrial diesel |
19–56 kW |
Tier 4 Interim industrial diesel |
Over 56 kW |
Tier 3 industrial diesel |
E4B |
Emission: |
Under 19 kW |
Tier 4 industrial diesel |
19–56 kW |
Tier 4 industrial diesel |
Over 56 kW |
Tier 4 Interim industrial diesel |
BG |
Emission: earlier diesel generator spec |
EBG |
Emission: Tier 1 diesel generator spec |
E2BG |
Emission: Tier 2 diesel generator spec |
E3BG |
Emission: |
Under 19 kW |
Tier 4 diesel generator spec |
19–56 kW |
Tier 4 Interim diesel generator spec |
Over 56 kW |
Tier 3 diesel generator spec |
