High-pressure pump (petrol direct injection) The latest generation of high-pressure petrol pumps from Bosch, which can be used for fuel pressures of more than 200 bar. Tappet and solenoid can clearly be seen. The tappet can be moved. description ordernumber 1337 see also: Common-rail high pressure pump with fuel-delivery regulation valve mechanical fuel pump VP 44 (Bosch) radial-piston distributor-type injection pump clutch model case