ENGINE SERIES NUMBER AND SUFFIX CHART I950 INI Continu d Ty Tvw Series Description Designation Series Description Designation C40 Thriftmaster 235 JC C60 L60 jobmaster 261 with H D Clutch and CSO L50 S50 Thriftmaster 235 L Air Equip i LX C60 L60 S60 jobmaster 261 LB T60 jobmaster 261 with H D Clutch LY C60 L60 jobmaster 261 with Air Equip LD T60 jobmaster 261 with Power Steering C60 L60 S60 jobmaster 261 with Power Steering LE and H D Clutch LZ T60 L jobmaster 261 LF C40 Trademaster 283 M T60 jobmaster 261 with Power Steering LG L50 Tradernaster 283 N C60 L60 S60 jobmaster 261 with Powermatic L L60 Taskmaster 283 NA C60 L60 S60 jobmaster 261 with Powermatic and L60 Taskmaster 283 with Air Equip NB Power Steering LK T60 Taskmaster 283 ND L60 jobmaster 261 with Powennatic and C60 S60 Taskrnaster 283 with Powerrnatic NE Air Equip LM C60 Taskmaster 283 with Powermatic C40 Trademaster 28 3 M and Air Equip NF LSO Trademaster 28 3 N L60 Taskmaster 283 with Powermatic NG L60 Taskmaster 283 NA 50 Tagknraster 283 with Powermatic L60 Taslrmaster 283 with Air Equip NB and Air Equip NH T60 Taskmaster 283 ND T60 Taskmaster 283 with Powerrnatic NM C60 S60 Taskmaster 283 with Powermatic NE C60 Taskmaster 283 with 4BC NK C60 Taskmaster 283 with Powermatic L60 Taskmaster 283 with 4BC NL and Air Equip NF C60 Taskmaster 283 with Air Equip L60 Taskmaster 283 with Powermatic NG and 4BC NS L60 Taskmaster 283 with Powennatic L60 Taskmaster 283 with Air Equip and Air Equip NH and 4BC NR T60 Taskmaster 283 with Powermatic NM C60 Taskmaster 283 with Powermatic C50 S50 Tradernaster 283 P and 4BC NU C60 S60 Taskmaster 283 PA L60 Taskmaster 283 with Powennatic C60 Taskmaster 283L with Air Equip PD and 4BC NV S67 C70 80 L70 C60 Taskmaster 283 with Powermatic 80 M70 S70 Workmaster 348 TF Air Equip and 4BC NW T70 80 Workmaster 348 TC L60 Taskmaster 283 with Powerrnatic f C70 80 L70 80 Air Equip and 4BC NX M70 S70 Workmaster 348 with Powermatic TD C50 S50 Trademaster 283 P T70 80 Workmaster 348 with Powermatic TE C60 S60 Taskrnaster 283 PA C60 Taskmaster 283 with Air Equip PD Engines are stamped with a source production date and type on C60 S60 Taskmaster 283 with H D Clutch PG serial pad C60 Taskmaster 283 with H D Clutch EXAMPLE T0101L and 4BC P T 01 Ol L C60 Taskmaster 283 with H D Clutch Tonawanda Month Day Thriftmaster 23S and Air Equip PK Plant january First Models C50 L50 S50 C60 Taskmaster 283 with H D Clutch 4BC and Air Equip PL l96l L60 Taskmaster 283 with H D Clutch PM L60 Taskmaster 283 with H D Clutch sum Ducriwion Duigmmon and 4BC PN L60 Taskmaster 283 with H D Clutch c40 rhrirrmasrer 2ss jc L60 Ta n e QitL if 5 il l PQ CSO L50 S50 Thriftmaster 235 L 4BC and Air E PR qlup C60 L60 S60 jobmaster 261 LB T60 Taskmaster 283 with HD Clutch l Ps C60 L60 jobmaster 261 with Air Equip LD I C60 L60 S60 jobrnaster 261 with Power Steering LE L70 80 M70 T60 jobmaster 261 LF sm N U wmkmaster 348 I N UNI U TF T60 Jobmaster 261 with Power Steering LG 1 70 80 wodmaster 348 I l l I I TC C60 L60 60 jobmaster 261 with Powennatic L c70 80 l 6 L6 s J 2 1 P d LK sommsvo workmasrer 348 with 1 wem u TD Cwmoo J b cr 2 i g y nl ig T mso workmasrer 34s with powemrrc TE Air Equip LM csc 1 60 ssc jobmaster zs1 with mn cmrch LU ds dw l d t dm d C60 L60 S60 jobmaster 261 with Power Steering P P P and H D Clutch LW h ir I t Motor Division I General Motors Corporation HDT W G 7 77 r r