catalytic converter Metal housing of a new catalytic converter cut-open to show both ceramic casings. In addition, cut-open honeycomb showing the tubing inside the ceramic casing. description ordernumber 1111 see also: Demand-driven oil pump with suction stage (V8) Common-rail high pressure pump with fuel-delivery regulation valve and injector injector for engines with direct petrol injection (GDI) cylinder head with 3 valves