GoWesty Vanagon Fuel Filter Upgrade Kit | GoWesty The GoWesty kit allows you to replace the soon-to-be-obsolete pre-filter—you know, the one that clogs really easily and causes the fuel pump to starve and cavitate, thus shortening its life. Even better, it replaces that pre-filter with the late-model Vanagon real-deal Bosch fuel filter after the fuel pump. Vanagain | Fuel Line Replacement Kit for all non Fuel Line Replacement Kit for all non-diesel Vanagons-80-83 Air Cooled Vanagon, 83-85 1 Vanagon. Looking for something but can't find it? Type a single word in the box at the top and hit "GO" FILTER PARTS BY VAN.