Honda Genuine OEM Spark Plug Cylinder O-Ring - 91301-PT0-003; 1990 to 1997 Accord (4 cylinder), 1995 to 1997 Odyssey, 1992 to 1995 Prelude S Replacement spark plug tube o-ring fits 1990 to 1997 Honda Accord (4 cylinder), 1995 to 1997 Odyssey, and 1992 to 1995 Prelude S Sold individually; vehicles equipped with 4 These are the o-rings underneath the rocker arm bridge, not part of the valve cover gaskets OEM gasket design and material specifically formulated by Honda engineers, for Honda automobiles. Brand New Original Genuine Factory OEM part. This is NOT a copycat aftermarket "OEM style" item.