Page 1. April 2009. Engine Serial Number Locations by. Engine Model. Small
Bore & Large Bore Diesel. Sept. 2010. Page 2. L3E & L2E. Page 3. SL Series.
April 2009 Sept. 2010
Engine Serial Number Locations by Engine Model Small Bore & Large Bore Diesel
L3E & L2E
SL Series
SK Series
S4Q2
S4S & S6S
S6A3
S6B3
S12H
S16R
S12A2
S6R
S12R
S6U
S12U & S16U
Manufacturing Date L Series
The manufacturing date code in stamped on the injection pump mount (upper side of tie rod cover) of the cylinder block. Next to the engine serial number. *See below for manufacturing date code reference chart.
SL Series
The manufacturing date code is stamped on the top of the face of the fuel injection pump bracket on the right hand side of the engine block. Next to the engine serial number. *See below for date of manufacturing date code reference chart.
SQ Series
The manufacturing date label is located on the rocker cover, next to the oil filler cap.
SS Series
The manufacturing date label is located on the rocker cover, next to the oil filler cap.
Manufacturing Date Codes
All Engines Produced after April 2011 will have the below label. This label will be applied to the rocker cover.
