Parts List References:Following the first two characters (engine family and type/phase code letters) will be either a group of five numerals or theletter "A" followed by a group of four numerals. If five numerals are used, they will be the reference for the engine buildparts list. When an engine Is built to a Standard Option Scheme (S.O.S.) order, the reference for the order is comprisedof the letter "A" and the last four digits of the order number. The following are examples of both references:PARTS LIST REFERENCE:21376ENGINE IDENTIFICATION CODE:TR21376U500120CSTANDARD OPTION SCHEMENUMBER:A018752STANDARD OPTION SCHEMEORDER REFERENCE:A8752ENGINE IDENTIFICATION CODE:LDA8752U501234CCountry of Origin Code Interpretations:The next character will be a one-letter code that represents the country where the basic engine was produced. Thefollowing interpretations are applicable to engine identification codes.COUNTRY OF ORIGINA .................ArgentineG ....................GreeceS ...............IndiaB .................BrazilJ .....................JapanT................TurkeyC .................AustraliaL......................ItalyU ..............United KingdomD .................GermanyM.....................MexicoX................PeruE .................SpainN .....................U.S.A.Y ...............YugoslaviaF ..................FranceP .....................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 numberseries 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 othermanufacturing operations will start with 251. Upon attaining serial number 999999, each series will revert to 251. Serialnumbers 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 theirrespective engine family. The serial numbering will start with 251 and progress through 1000 (if necessary) at eachlocation. The letter "R" will be used as a prefix to denote "Rebuilt Engine". For example:R417Year of Manufacture Code Interpretations:The last character in the engine identification code will be a code letter that represents the calendar year during which theengine was either produced or rebuilt. The following interpretations are applicable to engine identification codes:LETTERYEARB1975C1976D1977E1978F1979NOTE: The letters I.O,Q,R, and Z will not be used to represent the year of manufacture.-11-
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