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Decoding A Lister Engine Number

Decoding a Lister engine serial number.

Serial No. 150 HRW  2 24 MG  MP  MGR  1


Serial number of the engine in the year of manufacture  Engine series / type  Number of cylinders (where required)  Code letter Z or A = rotation  Year of manufacture (add to 1950)  Code letter R = Radiator cooled  Code letter S = Seawater cooled (rare)  Code letter M = Marine auxiliary  Code letter MG = Marine generator Code letter MP = Engines for marine propulsion Code letter MGR - Marine propulsion with reduction gear  Code letter V = Engines for Lister-built gensets  Build number = always prefixed by a dash ( - )