O-ring Size - 606 Engine

Does anyone know what the dimensions are of the o-ring seal for pre-fuel filter on a 606 engine?

[Jmana]

The prefilter doesn't have an oring, it's just a little plastic disposable thing.

[TMAllison]

Part #601 997 01 48.

Phil has for $3.53 each.

[sokoloff]

He's talking about a 606 engine and it does have an O ring. Don't know the size off the top of my head. I just buy them when I order parts. Cost is under a buck even at the dealer.

Len

The reason I am looking for this is because whenever I change a fuel system o-ring I wnat to use Viton. Viton is so much more durable. I wish that they were the standard material for the replacement parts.