Reply to ccjersey:
Gland packing....in a pinch, teflon tape............best is string for faucet stems with graphite in it ...........doesn't take much. Does the valve shut off completely?
Those parts are available from your local Cat. Dealer, but they are not cheap, I don't have a 6U Parts Number book, but my D4 5T book says the bowl is 9B4514, Gasket 9B4519, Valve Assembly 9B4510, that's a starting point.
Cat. Dealers have previously sold the complete tap with bowl for around $150 from memory, I'd suggest you call Tilly's up at Toowoomba and see if they have a aftermarket version. I just bought some new one's off Fleabay in the USA for about $18, I'm figuring I might need an adapter or two to make the threads work, but hey, a extra $5 I can live with.
regards
Mike