Cylinder head, Valve cover, <a href="https://garage.wiki/opel/engines/diesel/straight-4/20-l/a-20-dth/158-hp-at-4000-rpm-350-nm-at-1750-rpm.html" title="Opel diesel straight-4 2.0 L A 20 DTH 158 HP at 4000 RPM, 350 N⋅m at 1750 RPM engine DIY maintenance and service manual">Opel diesel straight-4 2.0 L A 20 DTH 158 HP at 4000 RPM, 350 N⋅m at 1750 RPM</a>, Bearing casing

by Roman Paulov