E3B Engine; Cylinder Number - Kubota SM-E3B Series Workshop Manual

SM-E3B SERIES WSM

[2] E3B ENGINE

[Example : Engine Model Name D902-E3B-XXXX]
The emission controls previously implemented in various countries to prevent air pollution will be stepped up as
Non-Road Emission Standards continue to change. The timing or applicable date of the specific Non-Road Emission
regulations depends on the engine output classification.
Over the past several years, Kubota has been supplying diesel engines that comply with regulations in the
respective countries affected by Non-Road Emission regulations. For Kubota Engines, E3B will be the designation
that identifies engine models affected by the next emission phase (See the table below).
When servicing or repairing ###-E3B series engines, use only replacement parts for that specific E3B engine,
designated by the appropriate E3B Kubota Parts List and perform all maintenance services listed in the appropriate
Kubota Operator's Manual or in the appropriate E3B Kubota Workshop Manual. Use of incorrect replacement parts
or replacement parts from other emission level engines (for example: E2B engines), may result in emission levels out
of compliance with the original E3B design and EPA or other applicable regulations.Please refer to the emission label
located on the engine head cover to identify Output classification and Emission Control Information. E3B engines are
identified with "ET" at the end of the Model designation, on the US EPA label. Please note : E3B is not marked on the
engine.

[3] CYLINDER NUMBER

Category (1) Engine output classification
K From 19 to less than 37 kW
J From 37 to less than 75 kW
I From 75 to less than 130 kW
Category (2) Engine output classification
Less than 19kW
From 19 to less than 56 kW
ET
From 56 to less than 75 kW
From 75 to less than 130 kW
(1) EU regulation engine output classification category
(2) "E3B" engines are identified with "ET" at the end of the Model designation, on
the US EPA label.
"E3B" designates Tier 3 and some Interim Tier 4 / Tier 4 models, depending on
engine output classification.
The cylinder numbers of KUBOTA diesel engine are designated
as shown in the figure.
The sequence of cylinder numbers is given as No.1, No.2 and
No.3 starting from the gear case side.
G-2
G GENERAL
EU regulation
STAGE ΙΙΙA
STAGE ΙΙΙA
STAGE ΙΙΙA
EPA regulation
Tier 4
Interim Tier 4
Tier 3
Tier 3
W1031971
W1011077
KiSC issued 03, 2011 A