OMC Cobra Stern Drive New OEM EXHAUST FLAPPER SHUTTER VALVE SEAL 0984467, 984467 Go to amazon.com Related posts Which is the best shutter valve? FeatureSKU: 0984467Sold EachPlease verify your own fitment DescriptionBrand new, genuine OMC Cobra Stern Drive Exhaust Seal Ay. This is a factory original equipment part, not aftermarket.