New correct design air cleaner base to valve cover vent tube rubber grommet. This is the angled / curved rubber grommet that goes in the rear left hand side of your air cleaner base. Exact shape, size, and fit as original.
77 - 81 Pontiac Firebird / Trans Am , with 403 oldsmobile style engine
69 - 72 Oldsmobile / Cutlass / 442