Parts List References:
Following the first two characters (engine family and type/phase code letters) will be either a group of five numerals or the
letter "A" followed by a group of four numerals. If five numerals are used, they will be the reference for the engine build
parts list. When an engine Is built to a Standard Option Scheme (S.O.S.) order, the reference for the order is comprised
of the letter "A" and the last four digits of the order number. The following are examples of both references:
PARTS LIST REFERENCE:
21376
ENGINE IDENTIFICATION CODE:
TR21376U500120C
STANDARD OPTION SCHEME
NUMBER:
A018752
STANDARD OPTION SCHEME
ORDER REFERENCE:
A8752
ENGINE IDENTIFICATION CODE:
LDA8752U501234C
Country of Origin Code Interpretations:
The next character will be a one-letter code that represents the country where the basic engine was produced. The
following interpretations are applicable to engine identification codes.
COUNTRY OF ORIGIN
A .................Argentine
G ....................Greece
S ...............India
B .................Brazil
J .....................Japan
T................Turkey
C .................Australia
L......................Italy
U ..............United Kingdom
D .................Germany
M.....................Mexico
X................Peru
E .................Spain
N .....................U.S.A.
Y ...............Yugoslavia
F ..................France
P .....................Poland
*Motores Perkins S.A., Mexico, started using the new identification format in its infancy and uses the letters
"MX" vice "M" as the code for Mexico.
Engine Serial Numbers:
Each engine family (if produced at the specific manufacturing location) will have a separate production serial number
series initiated at each manufacturing location. To distinguish the new engine serial numbering from that used previously,
Peterborough, United Kingdom will start numbering the first produced engine of each family with 500001. All other
manufacturing operations will start with 251. Upon attaining serial number 999999, each series will revert to 251. Serial
numbers 1 through 250 will always be reserved for prototype engines by each manufacturing operation.
Each manufacturing operation will group rebuilt engines as one type and serialize them progressively regardless of their
respective engine family. The serial numbering will start with 251 and progress through 1000 (if necessary) at each
location. The letter "R" will be used as a prefix to denote "Rebuilt Engine". For example:
R417
Year of Manufacture Code Interpretations:
The last character in the engine identification code will be a code letter that represents the calendar year during which the
engine was either produced or rebuilt. The following interpretations are applicable to engine identification codes:
LETTER
YEAR
B
1975
C
1976
D
1977
E
1978
F
1979
NOTE: The letters I.O,Q,R, and Z will not be used to represent the year of manufacture.
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