I'll try again. It's the 3 inch O ring that goes under the intake elbow. I know it is not 8C3Z-9D476-A. That is too small but that's all I could find. Is everyone just using their old one or buying a kit that includes one. I found this on ebay for about $100. It came with a boot and two clamps but no screws or gasket. I have the screws though just need the gasket.
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