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Fuel pump - location/task/design/function - GF47.20-P-4003AM

ENGINE 113.990 in MODEL 211, 219 

ENGINE 113.991 in MODEL 215, 220 

ENGINE 113.992 in MODEL 230 up to Model Year 2008 

ENGINE 113.993 in MODEL 463 up to 31.5.12 

ENGINE 113.995 in MODEL 230 up to Model Year 2008 

Picture on the left: two-stage flow pump in models 211, 219 

Picture on the right: helical spindle pump in models 215, 220, 230, 463 

Fig 1: Identifying Two-Stage Flow Pump (Models 211, 219) And Helical Spindle Pump (Models 215, 220, 230, 463)
G07873614Courtesy of MERCEDES-BENZ USA
  Fuel pump position Models 211, 219 GF47.20-P-4003-01TA
Models 215, 220 GF47.20-P-4003-01AM
Model 230 GF47.20-P-4003-01RA
Model 463 GF47.20-P-4003-01GA 
  Fuel pump task The fuel pump supplies an adequate quantity of fuel at the required pressure to the fuel injection system.  
  Fuel pump design   GF47.20-P-4002-01KE 
  Fuel pump function   GF47.20-P-4003-02KE