G'day Alan,
The primer bulbs to fit the carby caps have never been available as a separate part, as far as I know. As the plastic of the cap is hot crimped over the bulb flange during manufacture, it's not designed to be replaced other than as a complete assembly.
As far as distinguishing OEM from aftermarket, the genuine Victa caps have the Victa part number, CR03501A, in a moulded panel above the 'level line'. The aftermarket caps I've seen here don't have this feature, for what that's worth..
G'day Gadge,
Yes, the cap I have just found in my workshop seems to be original as it has the CR03501A part number exactly where you described it would be. I managed to pull the old primer bulb off easily enough but you are right, it's not as easy to put it back on again.
One thing I did notice though is under the bulb (once removed) I can see a Victa part number: CR03560A?
A year ago I paid �27 for my last original cap from a seller on Amazon UK........ Ouch..!!
As you have said Mowerfreak, I think I will also just keep the caps that I have, seal up the hole and give my arm a bloody good workout rather than pay money like this every couple of years..!!!
For this reason alone I really cant tell you how much I appreciate the workmanship that went into the simple, but effective G3 Carby..!!
