New Product: Air Cleaner Duct/Snorkel Vacuum Valve XY-XB Posted on April 13, 2023April 13, 2023 Now in stock are these reproduction Air Cleaner Duct/Snorkel Vacuum Valves for XY-ZD w/351C & GT, XA-XB & ZF-ZG w/351C to 12/74 and XB GT from 12/74 on.