Used factory engine positive crankcase ventilation hose for Early NB Mazda Miata. Also known as the PCV hose or vent hose. This is the rubber hose that connects the valve cover to the plastic intake piping in front of the engine. Part number BP4W-13-742. Fits 1999-2000. Photographs are stock photos only and the purchased product may vary. Photographs of the purchased product can be emailed upon request.