Part numbers of the copper sealing rings

…. that are installed on the engine and their sizes

Rotex P/N	size	used with
230 415	6 x 10	water pump synchronization connection on the intake manifold
950 141	8 x 13	Fuel connection on carburetor Blocking pin screw plug Pressure oil line on turbocharger with valve housing (also 915)
950 143	8.2 x 13 x 1.4	Fuel distributor for flexible fuel lines
230 150	10 x 14	Pressure oil line Governor Fuel connections 914
250 425	10.2 x 15 x 1.5	Connections for fuel pump 893115
250 646	12 x 18	Valve housing for turbocharger (also 915) Fuel line 912 iS - also connection to fuel pressure regulator
250 010	12 x 18	Oil retaining drain plug (with insert)
250 015	12 x 18	for airbox temperature sensor 912 iS
230 387	14.2 x 18 x 2	Screw connection oil pump\\oil cooler connection
430 622	16 x 22	Ring hose nipple for oil return - also screw connection oil pump 912 iS

… is of course not complete …