Onan has replaced the carbeurator end of the fuel line with an adaptor, not a fuel filter, and has changed to a new, larger, filter on the input side of the fuel pump.
I thought my fuel line was leaking, but it was a cracked filter. Lots'a people have reported this.
I have all the numbers if you can't find them, but have them right here.
This is on the 5500 only!
PM me if you can't find the numbers.
2005 Georgetown 342DS XL, Full Banks Package
2005 Liberty Renegade 4X Toad
1989 Wrangler Sahara Toad
1984 19.5' Beachcraft i/o 5.o liter, 4-bbl (and you thought your Moho sucked gas!)
D/W Carole and Maggie the Teacup Lab (Black Chihuahua)