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: pistons model case pump tappet of a lifting-disk pump two-stage carburetor 1B2E two-stroke moped engine