924 (86-88) 944/Turbo (82-88) 964 turbo(91-94) 959 (87-88) Oil filter
Engine
924 (88), 944 (88-91), 964 (89-94), 993 (94-98) Vent valve.
924 (86-88), 944 (82-88), 944Turbo (86-91) Gasket intake manifold, 4 required
924S (86-88), 944 (82-91) Intake air hose, mounted between the mass air flow meter and throttle body.
911 (84-86), 924 (80-85), 924S (86-88), 928 (83-86), 944 (82-91) Throttle-valve switch