Bosch Common Rail 
           Fuel Injection System
           Version 2.0*
         *Updated as on December 2019.
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                                                                                                                                                                        Contents
                                                                                                                                                                        1     Bosch Common Rail System                                                            4
                                                                                                                                                                        2     Generations of CRS                                                                  5
                                                                                                                                                                        3     Bosch Common Rail Injectors                                                         6
                                                                                                                                                                              ▶ Common Rail Injectors - Passenger Cars                                            8
                                                                                                                                                                              ▶ Common Rail Injectors - Commecial Vehicles                                        9
                                                                                                                                                                              ▶ Piezo Injector                                                                   10
                                                                                                                                                                        4     High Pressure Pumps                                                                11
                                                                                                                                                                        5     Distributor Tube / Rail / Accumulator                                              16
                                                                                                                                                                        6 DNox                                                                                   17
                                                                                                                                                                        7     Bosch Common Rail Systems Application Chart                                        18
                                                                                                                                                                        8     Bosch CR Systems Spare Parts List
                                                                                                                                                                              ▶ CR Pumps                                                                         67
                                                                                                                                                                              ▶ CRI Injectors                                                                    71
                                                                                                                                                                              ▶ CRIN Injectors                                                                   73
                                                                                                                                                                              ▶ Rail                                                                             74
                                                                                                                                                                              ▶ CRI Repair Kit                                                                   76
                                                                                                                                                                              ▶ CRIN Repair Kit                                                                  76
                                                                                                                                                                              ▶ CR Shim Kit                                                                      77
                                                                                                                                                                        9     Special Case Explanation                                                           87
                                                                                                                                                                          Product                              HSN Code                              Tax %
                                                                                                                                                                          CR Pumps                             84133010                              28
                                                                                                                                                                          CR Pump Spares                       84139190                              18
                                                                                                                                                                          Rail / Distributor Tubes             84099941                              28
                                                                                                                                                                          Rail Spares                          84811019                              18
                                                                                                                                                                          CR Injectors                         84099930                              28
                                                                                                                                                                          CR Injector Spares                   84099990                              28
                     Bosch Common Rail System
                     The Bosch fuel injection system delivers the metered quantity at high pressure to mix with compressed air inside the combustion 
                     chamber for efficient combustion. The Bosch Common Rail Fuel Injection System (Bosch CRS) is an innovative, efficient, and 
                     economical high-pressure injection technology that makes today’s vehicles more attractive than ever before.
                     Bosch CRS features:
                      Reliable technology for high-performance diesel engines
                      Genuine OE components
                      Modular design for ease of servicing
                                                                                                                                                                                                                                                     Generations of Bosch CRS
                                                                                                                                                                                                                                                    Cr Generation       Max. Prsr.  Injector      High Pressure Pump
                                                                                                                                                                                                                                                                        (Bar)        Type
                                                                                                                                                                                                                                                    1st Generation      1,350–       Solenoid-    CP1 
                                                                                                                                                                                                                                                    Passenger Cars      1,450        Valve        Pressure control on 
                                                                                                                                                                                                                                                                                     Injector     high-pressure side 
                                                                                                                                                                                                                                                                                                  (Rail) by pressure-
                                                                                                                                                                                                                                                                                                  control valve
                                                                                                                                                                                                                                                    1st Generation      1,400–       Solenoid-    CBx 
                                                                                                                                                                                                                                                    Commercial          1,800        Valve        Pressure control on 
                                                                                                                                                                                                                                                    Vehicles                         Injector     suction side (Pump) 
               The Bosch Common Rail System consists of a high-pressure pump, rail, and injector.                                                                                                                                                                                                 fuel delivery control 
                                                                                                                                                                                                                                                                                                  by two solenoid 
                                                                                                                                                                                                                                                                                                  valves
                                                                                                                                                                                                                                                     nd
                                                                                                                                                                                                                                                    2  Generation       1,600        Solenoid-    CP3, CP1H 
                                                                                                                                                                                                                                                    Passenger Cars                   Valve        Suction-side fuel 
                                                                                                                                                                                                                                                    & Commercial                     Injector     delivery control 
                                                                                                                                                                                                                                                    Vehicles                                      by metering unit
                                                                                                                                                                                                                                                    3rd Generation      1,600–       Piezo-       CP3, CP1H, CP4.1 
                                                                                                                                                                                                                                                    Passenger Cars      1,800        Inline       Suction-side fuel 
                                                                                                                                                                                                                                                                                     Injector     delivery control by 
                                                                                                                                                                                                                                                                                                  metering unit
                                                                                                                                                                                                                                                    3rd Generation      1,800        Solenoid-    CP3.3NH, CP4.2 
                                                                                                                                                                                                                                                    Commercial                       Valve        Metering unit
                                                                                                                                                                                                                                                    Vehicles                         Injector
                                                                                                                                                                                                                                                       You can rely on the world’s leading diesel system 
                                                                                                                                                                                                                                                       supplier for passenger cars, off-highway, 
                                                                                                                                                                                                                                                       and commercial vehicles.
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                              When it is time to 
                              replace the injector, 
                              Bosch is the only choice.
                              Bosch Common Rail Injectors
                              The Bosch Common Rail Injector injects the precise amount of fuel into the combustion chamber                                                                                                                                                                                                                                                                                             Benefits to the customer:
                              at the right time and in the right quantity. This can be actuated with a solenoid on the injector,                                                                                                                                                                                                                                                                                         Optimum torque
                                                                                                                                                                                                                                                                                                                                                                             uman hair
                              and the duration and timing will be controlled by the ECU (Electronic Control Unit).                                                                                                                                                                                                                                                          (dia 00 mm)                               Lower emmission and noise 
                                                                                                                                                                                                                                                                                                               Pressure                                                                                                      levels
                                                                                                                                                                                                                                                                                                               2050 ar
                              Features:                                                                                                                                                                                                                                                                                                                                learance 0002 mm                                Lower fuel consumption
                                                                                                                                  World’s most sophisticated common rail                                                                                                                                                                                                                                                Superior and comfortable 
                               Operates up to 2,050 bar pressure of                                                                                                                                                                                                                                                     3
                                                                                                                                      diesel injector design                                                                                                                                             Pinhead (2 mm )                                                                                                     driving experience
                                   injection which is equal to the weight of a 
                                   sedan on the nail of a human.                                                                  Designed and engineered with every 
                               Multiple injections of up to 8/stroke                                                                 component representing a unique 
                               Maintains the quality and performance                                                                 technology
                                                                                                                                                                                                                                                                                                                                                                Speed of sound      033 m ms
                               Has undergone hydro-erosion machining                                                                                                                                                                                                                                        Injected fuel quantity
                                   process for intricate hole size that is equal                                                                                                                                                                                                                             1–350 mm3
                                                                                                                                                                                                                                                                                                                                                                            Injection duration 
                                   to one-third the human hair diameter                                                                                                                                                                                                                                                                                                     1–2 ms
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