Paul,
I have the number at home. I am at work right now but if no one else can provide it for you tonight I will post it tomorrow when I wake up (I work night shift).
I'd appreciate that a lot.
I know the Briggs and Stratton part number.....but I don't know the manufacturer or their model number.
Briggs lists it as a 557039. But that doesn't fly in any parts store....even NAPA.
Threaddiameter: 10mm
Threadreach: 19mm
Seattype: flat
Hexsize: 16mm
Tip configuration: non projected
Construction: Standard construction
Terminal type: Solid