All 911 (65-94) Rockerarm shaft seal as used on the RSR, to avoid oil leakage through the rocker shaft borings.
Select your car
cylinder head, camshaft, valve
911 T 2.2 set of piston rings for 1 piston, Kolbenschmidt
911 2.7 S 210 HP (74-77) set of piston rings for 1 piston